Sensor device. RU patent 2519392.

FIELD: instrumentation.

SUBSTANCE: invention relates to an optical sensor device and to the method to determine both a position of an object contacting with the sensor device and the change of the said position. The sensor device comprises a light radiation source, a sensor beam waveguide, a detector matrix and the first element for light radiation redirection; the first redirection element is made with the possibility of changing at least part of the sent light radiation between that part where distortions are introduced and that part where distortion introduction is prevented, when an object is contacting with the sensor surface in respective certain point of contact, so delivery of at least part of light radiation passing in the direction of the certain point located on the detector matrix, to the certain point is prevented.

EFFECT: provision for improved efficiency of coding a position of an object contacting with sensor surface, basing on the change of intensity of light radiation reflected from the contact point.

37 cl, 38 dwg

The technical field to which the invention relates

The invention relates to the optical touch the device and the method for determining how an object's position in contact with touch device, and change the position of the object. In particular, the invention relates to the touch pad, which is the contact, and to a method of determining how an object's position in contact with touch panel and change the position of the object.

The level of technology

In the document DE 202005010570-U1 considered a way of violation of the conditions conducive to the emergence of full internal reflection inside the fiber that is required to determine whether the contact.

One of the objectives of this invention is the grant of such sensor devices, production costs which would have been low.

Disclosure of the invention

According to the first aspect of this invention, presents a touch device that includes a source of light radiation; touch the light with this configuration, which allows the passage of light in the direction of from the source of light radiation to touch the surface of the touch of the fiber so that at the point of contact of the object to touch the surface of the object was made of infringement, at least in part directed light radiation; the detector array, which serves to establish the distribution of the intensity of light radiation transmitted from the source of light radiation through touch the light, for the coding point of contact of the object with a multi-touch surface; the first element redirect light radiation, which is intended to redirect the light transmitted from source of light radiation via the touch light guide and transferred to the first element redirect light radiation in the direction of the detector matrix, and in the moment of contact of the object corresponding to a certain point, located on the touch surface, prevents certain point detector matrix at least part of the light rays passing towards a certain point detector matrix. Preferably, the redirection of light radiation is a change of direction passing in a plane that is parallel to the touch surface (in particular, the choice of the plane due to the direction of optical projection).

According to another aspect of the present invention, presents a way of encoding an object's position in contact with the sensor surface, and this method involves the emission of light radiation from the appropriate source; the passage of light radiation in the direction of the source of light radiation to touch the surface of the touch fiber so that at the point of contact of the object to touch the surface of the object was made of infringement, at least in part directed light radiation; registration, through the use of a crystal matrix, intensity distribution of the light radiation transmitted from the source of light radiation through touch the light, for encoding position of the point of contact of the object with the touch surface; and redirection of light radiation, passed from the corresponding source via the touch light guide and transferred to the first element redirect light radiation in the direction of crystal matrix by using the first element redirect light radiation, and in the moment when the object is in contact with the appropriate specific point, which is located on the touch surface, prevents certain point detector matrix at least part of the light rays passing towards a certain point detector matrix.

Preferably, the redirection of light radiation is a change of direction passing in a plane that is parallel to the touch surface.

Brief description of drawings

Special features and advantages of the present invention will become more understandable for the specialists in the art after they get acquainted with the detailed description of the model embodiments of the present invention and attached to that description figures.

Figure 1 schematically shows the top view of the preferred options for performing device according to the invention.

Figure 2 - a cross-section taken along the line II-II in figure 1.

Figure 3, top view options for performing presented on Figure 1.

Figure 4 - top view options for performing presented on Figure 1.

Figure 5 - top view options for performing presented on Figure 1.

6 is a top view options for performing presented on Figure 1.

Fig.7 - schematically shows the top view of the preferred options for performing device according to the invention.

Fig - a cross-section taken along the line of the VII-VIII 7.

Figure 9 - a cross-section taken along the line of the IX-IX figure 7.

Figure 10 - a cross-section taken along the line x-X 7.

11 - schematically shows the kind of cross section variants of performance of the device according to the invention.

Fig is schematically shows the top view of the preferred options for performing device according to the invention.

Fig - a cross-section taken along the line of the XIII-XIII on Fig.

Fig - a cross-section taken along the line of the XIV-XIV on Fig.

Fig - a cross-section of item redirect light radiation.

Fig - a cross-section of item redirect light radiation.

Fig - schematic diagram top view preferred option execution of the device according to the invention.

Fig - image option, shown in Fig, which lacks some details.

Fig - image option, shown in Fig, which lacks some details.

Fig - image option, shown in Fig, which lacks some details.

Fig is schematically shows the top view options for performing device according to the invention.

Fig is schematically shows the top view options for performing device according to the invention.

Fig is schematically shows the top view options for performing device according to the invention.

Fig is schematically shows the top view options for performing device according to the invention.

Fig is schematically shows the top view options for performing device according to the invention.

Fig is schematically shows the kind of cross section variants of performance of the device according to the invention.

Fig is schematically shows the kind of cross section variants of performance of the device according to the invention.

Fig is schematically shows the kind of cross section variants of performance of the device according to the invention, characterized by the presence of the display.

Fig is schematically shows the option of the device according to the invention, characterized by the presence of devices signal processing.

Fig is schematically shows the top view options for performing device according to the invention.

Fig - a cross-section taken along the line of the XXXI-XXXI on Fig.

Fig is schematically shows the top view options for performing device according to the invention.

Fig - a cross-section taken along the line XXXIII-XXXIII on Fig.

Fig is schematically shows the top view options for performing device according to the invention.

Fig is schematically shows the top view options for performing device according to the invention.

Fig is schematically shows an example of a signal from the detector matrix, and this signal is a function of the coordinates.

Fig is schematically shows an example of a signal from the detector matrix, and this signal is a function of coordinates and refers to two different time periods.

Fig is schematically shows an example of a signal, measured by four coordinates, which comes with a crystal matrix, and this signal is a function of time.

To ensure clarity, presents drawings are schematic and stylized. On data dimensional drawings represent only those elements that are really important for understanding the essence of the invention. If the items shown on different drawings are identical, they often used the same numbers.

It should be noted that the invention may be carried out not only those options that are presented in the attached drawings, but also in other forms. Accordingly, in the manufacture discussed in this document, the device should not be limited only to the given options. It can be argued that through consideration of the following embodiments of the invention will cover all aspects of it that will allow experts in the art fully appreciate the basic idea of the invention.

A detailed description of the preferred embodiment of the device

Figure 1 schematically represents the view from the top of the preferred option the device run 2 according to this invention. Figure 2 presents a cross-section taken along the line II-II in figure 1.

Sensor 2 includes planar, mostly rectangular touch 8 fiber, made of such material that can be used for distribution of which are inside the fiber radiation. In the basis of distribution of light radiation lies total internal reflection, which is well known in the field of optical fiber and fiber optic cable. Light radiates in touch fiber 8 from source 4, which is located in one corner of the unit 2. Source 4 light radiation covers almost all of the internal volume of the unit 2. Items 12, 14, 22 and 24 redirect light radiation are located on the edges to reject light radiation coming on the touch light guide 8, in the direction of the detector matrix 20, which is located in one corner of the unit 2 opposite the 4 source of light. Thus, the redirection of light radiation 6 represents, mainly, change direction passing in a plane that is parallel to touch the light guide 8. Object (figure not shown), which can be a finger in contact with the sensor surface 30 touch fiber 8, changes the refractive index at the point of contact (not shown). As a result of changes in the refractive index some light radiation, which are inside the touch of a light guide 8, no longer exposed to total internal reflection, which means that this part of the light emission is derived from sensory light guide 8. This change is related to the distribution of light radiation inside the touch of a light guide 8, perceived array 20, and in establishing the position of the point of contact is the perception of the specified matrix changes relating to the distribution of intensity.

In this embodiment, the device object (not shown) may make violations in distribution of light radiation inside a sensor unit 2 and in other ways. Making disorders may be caused by the presence of absorption or scattering of light, and any other factors that may affect the intensity distribution of the light emission perceived array 20.

There is no need to object (not shown) joined with the touch surface 30 in physical contact at any point; it is enough to violations made by the object in nerasprostraneniya field, situated at the point of contact, were significant enough to cause such a change in the intensity distribution of the light rays that could be perceived array 20. Thus, in this case for the point of contact (not shown) should take the point, which is a violation of nerasprostraneniya field object (not shown).

Thus, if a light beam emitted from a source 4 light radiation in touch fiber 8, goes in that direction, if to design it on the plane Hu, which differs from the direction of the passage above the light beam 6 so that the light beam (not shown) falls at another point of the second item 12 redirect light radiation, then the light beam (not shown) also falls at another point of the first item 14 redirect light radiation and at another point of the first part 18 detector matrix 20. Therefore, it can be argued that the light beam emitted by a source 4 in a certain direction in the XY-plane, falls on the appropriate point on the surface of the crystal matrix.

Presents sensor 2 additionally includes the fourth item 22 redirect light radiation, which is almost identical to the mirror image of the second item 12 redirect light radiation, and the third element 24 redirect light radiation, which is almost identical to the mirror image of the first item 14 redirect light radiation. Thus, the path of the light beam (not shown)from a source 4 in touch fiber 8 and passing in the direction of the fourth item 22 redirect light radiation, which reflects the beam in the direction of the detector matrix 20, like the path of a light beam that was discussed above. However, the light beam (not shown) will be transferred to the second part 26 of the detector matrix 20.

In one embodiment, the device (not shown) light beam, the direction of the passage which is changed by using the first element redirect the light flux, and the light beam, the direction of the passage which is changing through the use of third element redirect the light stream can get on the same plot of land on the surface detector of the matrix. In this case, in order to distinguish one light beam from another, is determined by the angle of incidence on the detector array for each of these light rays (for example, through the creation of projection onto the XY-plane, or radiation beam of light with different wavelengths in the direction of the second element redirect light radiation and fourth element redirect light radiation, respectively, or a combination of the methods presented here.

Figure 3-5 presents the views from the top of the device 2, and on these drawings are shown through various parts of the light rays 6 through touch waveguide 8 in the direction of the detector matrix 20.

Figure 3 shows that the light rays 6 emitted by the source to 4 shall be transmitted through the use of sensory light guide 8 in the direction of the second item 12 redirect light radiation in order to cover practically all surfaces redirect light radiation, all reflective parts 10 second item 12. In addition, the light rays 6 go to the fourth item 22 redirect light radiation in order to cover practically all surfaces redirect light radiation, all reflective parts 28 of the fourth item 22. In the presented variant of execution devices prevented the direction of light from the source 4 directly on the detector array 20. In one embodiment, the direction of light radiation directly on the detector array is prevented by setting the element (not shown) before the source of light radiation 4. Therefore, overlaps optical path that light would come from the 4 source to the detector matrix of 20, that is covered luminous flux, which would otherwise fall on the detector array without forwarding any of the items 12, 14, 22, 24. Light rays 6 emitted by the source 4 in the direction of the second item 12 redirect light radiation, are divergent. In this light rays 6 emitted by the source 4 in the direction of the fourth item 22 redirect light radiation, are also divergent.

Figure 4 shows that the light rays 6 coming to the second item 12 redirect light radiation (shown in Figure 3)are rejected by the second item 12 in the direction of the first item 14 redirect light radiation so that light rays 6 sent touch light guide 8 in the directions, which are almost parallel to the y-axis. In addition, the light rays 6, coming on the fourth item 22 redirect light radiation, rejected the fourth item 22 in the direction of the third item 24 redirect light radiation so that light rays 6 sent touch light guide 8 in the directions, which are almost parallel to the axis X.

Figure 5 shows that each light beam, 6 corresponds strictly certain point of falling to the surface detector matrix 20, and the drop point is specified by passing beam designed on a plane Hu. In the present embodiment detector matrix 20 is the size that you want to encode provisions. As a result of change of intensity of a light beam 6, which takes place on a particular path within the touch of a light guide 8, in the corresponding point of the fall, located on the surface of the crystal matrix, 20, will change the intensity.

The intensity of this light beam 6, coming to a point detector matrix 20, may be reduced by the object (not shown)violates the beam of light 6 at the point of contact (not shown), so that some part of the light beam will not come to a point detector matrix 20. This phenomenon occurs when the object (not shown) is in contact with the sensor surface of 30. As already explained above, under the object (not shown)in contact with the sensor surface, means such object (not shown), which is located within nerasprostraneniya this field of the light beam directed touch 8 fiber. Also it was noted above that the object (not shown) may make a breach in light beam 6, passing within touch of a light guide 8, which is expressed, for example, in the withdrawal, at least, part of the light beam 6. Alternatively or additionally, object (not shown) may make a breach in light beam 6, passing within touch of a light guide 8 through acquisitions, at least, part of the light beam 6. Alternatively or additionally, object (not shown) may make a breach in light beam 6, passing within touch of a light guide 8, by scattering at least part of the light beam 6.

Because the light rays 6, passing within touch of a light guide 8, intersect with each other and are essentially parallel to the x-axis and the y-axis (see Figure 4), light radiation, held in each of the listed areas, can be broken by touching the object (not shown) to some point (not shown), which is located on the touch surface 30. However, violations can be also made by the object (not shown) and in light ray is emitted by a source 4 in the direction of the second item 12 redirect light radiation or towards the fourth item 22 redirect light radiation (confirmation of this fact is presented on Figure 3). In addition, impairment may be made by the object (not shown) and in light beam, say no to the first item 14 redirect light radiation or third element of 24 redirect light radiation in the direction of the detector matrix 20 (confirmation of this fact is presented on Figure 5). However, the conclusion about the location of a point of contact can be inferred by comparing the magnitudes of change of intensity of light radiation input to the various relevant points detector matrix 20.

To confirm the above assertion is 6, which shows an estimate of the situation. Object (not shown) is in contact with the sensor surface 30 at point 32. Four light beam 6, which are designed on the plane Hu, sent touch fiber 8 so that they intersect at point 32 of the contact. In point 32 of the contact object (not shown) makes violations, at least in some part of each of these four light rays 6. Thus, the intensity of the incoming light emission will be reduced in four points detector matrix 20. In connection with the fact that four light beam 6, corresponding to the four points of entry on the detector array, have one common point of intersection, which is the point 32 of contact, the conclusion about the location of a point 32 of contact can be inferred based on the distribution of the intensity of light radiation, which was seen in the crystal matrix 20.

Thus, the embodiment of 2 device according to the invention, are presented in figures 1-6, which includes one source 4 light radiation and the detector array 20, can be used to establish the position of a point 32 of contact of the object (not shown) with touch surface of 30. In one embodiment, the device second surface 34, which is located opposite the touch surface 30 (see Figure 2), is also a touch screen. In relation to option presented on Figure 1-6, we can say that the propagation of light radiation is through total internal reflection, resulting from use of the touch surface 30, and by reflection from the second surface 34. Total internal reflection occurs when the angle of incidence of light radiation received at the touch surface inside 30, exceeds the critical angle. The angle of incidence of the light beam is defined as the angle formed between the light beam and the normal to the surface that receives light beam. Similarly relatively normal to the surface that receives light beam, is determined and critical angle. The value of the critical angle depends on the ratio between the index of refraction of sensory light guide 8 and the refractive index of the medium beyond the touch surface 30. To determine the magnitude of the critical angle q S.A. there equation

q sa =arcsin(a n /a n w ),

where n and is the refractive index of the environment (as a rule, the refractive index of air), a n w is the refractive index of sensory light guide 8. The refractive index of air under normal conditions has a value close to 1.

If the point of contact to replace the environment object with the refractive index n o , then the value of the critical angle at this point can be defined according to the formula

q c.o =arcsin(n o /n w )

As a rule, the angle theta c.o exceeds the value of the angle q S.A. It takes place under the condition that the value of n o exceeds the value of n and . If the object is a finger, then the value of n o approximately 1,47. The most preferable is the situation in which the values of the angle of incidence of all light rays do not go beyond the limits set by the values of the two critical angles q S.A. and q S.D . In this case, total internal reflection is suppressed exclusively to the contact point, resulting from a fiber appears that at least part of the light beam. Accordingly, the intensity of this light ray, perceived array 20, will be reduced.

If another point to replace the environment a drop of water with the refractive index n water , then the value of the critical angle at this point can be defined according to the formula

q .water =arcsin(n water /n-w ).

The refractive index of water is about 1,33. The most preferable is the situation in which the values of the angle of incidence of all light rays do not go beyond the limits set by the values of the two critical angles q c.water strain and S.O. In this case, total internal reflection is not inhibited by a drop of water. In this embodiment, the device water inside the touch surface, does not affect light radiation, which are inside the fiber. From the above we can conclude that the most critical information is the magnitude of the following three critical angles: the critical angle q S.A. the environment, critical angle q c.o object and critical angle q water water.

Touch the fiber can be made of various materials such as acrylic glass. If transiting in touch fiber light rays do not go beyond the visible spectrum, and the touch optical fiber is made of acrylic glass, the refractive index which is approximately 1,49, then the values of the critical angles are estimated to be: the value of the critical angle q S.A. air - 42 degrees, the value of the critical angle q c.water water - 63,2 degrees magnitude of the critical angle q S.D object (if the object is finger - 80,6 degrees.

Figure 7 outlines the view from the top of the preferred option the device run 102 according to this invention. The device 102 like device 2, shown in Figure 1-6. The projection on the plane Hu path of light rays passing inside the touch of a light guide 108 devices 102 shown in Fig.7 essentially identical to the projections Hu path of light rays passing inside the touch of a light guide 8 2 device, considered with reference to Figure 3-5.

The fact that in light beam I can't be included violations of the object (not shown)in contact with the sensor surface 130, is a certain dignity. The advantage is that when the object (not shown) is located at the touch surface 130 directly to the source of light radiation 104, in a relatively large part of the radiating light radiation a emitted by the source 104, not included violations. Thus, it becomes possible to simplify the process of coding provisions. Thus it becomes possible to implement coding position with greater accuracy, which is an alternative to the above-mentioned process of encoding or addition to it. In addition, coding position of the object (not shown)in contact with the sensor surface 130 at the point, which is located in the immediate vicinity of the second element 112 or fourth item 122, can be performed with greater accuracy.

The fact that in light beam s can't be included violations of the object (not shown)in contact with the sensor surface 130, is a certain dignity. The advantage is that when the object (not shown) is located at the touch of a light guide 108 immediately before array 120, in a relatively large part of converging light radiation is going in the direction of the detector matrix 120, is not included violations. Thus, it becomes possible to simplify the process of coding provisions. Thus it becomes possible to implement coding position with greater accuracy, which is an alternative to the above-mentioned process of encoding or addition to it. In addition, coding position of the object (not shown)in contact with the sensor surface 130 at the point, which is in close proximity to the first element 114 or third item 122, can be performed with greater accuracy.

The next advantage of the presented variant of execution of the device is that when in contact object with a multi-touch surface 130, there is a change in the distribution of the intensity of light radiation, perceived array 120, the location of the point of contact (not shown) does not essentially no impact on changes in the intensity of all light radiation, perceived array 120. It should be noted that the distribution of the intensity of light radiation is dependent on the location of the point of contact (not shown). Thus, any of the contact points located throughout the touch surface 130 may be detected with the same success, regardless of how close is the point of contact from the source of light radiation 104 and from the detector matrix 120.

Light radiation (not shown), emitted by the source, 104, significantly lights reflective part 110 second element 112 redirect light radiation. Like the above, light radiation (not shown), emitted by the source, 104, significantly lights reflective part 128 of the fourth item 122 redirect light radiation.

In addition, the device 102 used floor 131, which is applied in the form of a strip on the touch surface 130 before the first element 114 redirection of light radiation. The purpose of the coating 131 will be discussed below with reference figure 10. Additionally, the device 102 used floor (not shown), which is applied in the form of a strip on the touch surface 130 before the third item 124 redirect light radiation. In one embodiment, the device, which consider such variant, the floor in bands missing.

The above features of the device 102 shown in Fig.7, will be discussed below with reference to Fig-10, which cross section presents the different parts of the device 102.

On Fig presents a cross-section taken along the line of the VII-VIII (see Fig.7). This figure shows, in addition to other elements and light rays, 104 source of light radiation, part of sensory light guide 108, light rays a and e that pass between light rays a and a. The values of angles of incidence data rays relative to touch the surface of 130 exceed the critical angle q c.o object (not shown), resulting object has no effect on the data of the light rays. It should be noted that during the passage from 104 source of light radiation to the second element 112 redirect light radiation shown Fig light rays remain insensitive to the object (not shown), which is in contact with the sensor surface 130.

Additionally, the light beam emitted by the source, 104, covers essentially all reflective part 110 second element 112 redirect light radiation, as argued above with reference to the Fig.7.

Light radiation (not shown) is emitted by the source 104 towards the fourth item 122 redirect light radiation in the same way.

Four light beam a, a, a and o, which are shown in Fig, get inside the touch of a light guide 108, who shall transmit them to the second element 112 redirect light radiation. The arrows indicate the direction of the passage of light rays. The Figure shows that the light rays come in touch fiber 108 from the same point. However, different light rays can come in touch fiber 108 from various points. For lighting touch fiber 108 are, essentially, the only light coming from the source, 104, the magnitude of the angle of incidence which do not go beyond the limit values relating to the light rays a and a. That is being projected onto the plane of the cross-section, light rays a and a determine the cross-section of a cone of light radiation that comes from a source 104.

Similarly light radiation (not shown)emitted by the source 104, goes to the fourth item 122, shown in Fig.7.

In the presented variant of execution devices each of light rays a and a forms touch surface 130 angle, the value of which is about 5 degrees. Inside the touch of a light guide 108 can be let in light rays (not shown), which form different angles touch surface 130. In addition, light radiation can be delivered continuously, in the form of pulses or by any combination of these methods of submission of light radiation.

Figure 9 presents a cross-section taken along the line of the IX-IX (see Fig.7). The diagram shows, among other things, the second element 112 redirect light radiation and of the touch of a light guide 108. The second element 112 redirect light radiation is used to perform at least two functions. The first function of element 112 is that he rejects at least part of light radiation from a source of light radiation in the direction of the first element 114 redirection of light radiation, and the light beam is deflected in such a way that it begins to be essentially along the path, situated parallel to the y axis (see Fig.7). The second function of the second element 112 is that he rejects at least part of the light emission in the direction of the first element 114 redirection, light radiation and light radiation is deflected so that it can be made of a violation by the object (not shown)in contact with the sensor surface 130.

Figure 9 shows two light beams a and a, the direction of the passage which is changed by using the second element 112 redirect light radiation. As a result of change of a direction of light rays passing a and a we receive, respectively, the light rays 106b1 and 106b2. The arrows indicate the direction of the passage of light rays 106. For convenience as the incident light rays a and a and reflected light rays 106b1 and 106b2 are projected onto the plane of the cross-section IX IX shown in Fig.7. Two of the incident light beam a and a shown in Figure 9, correspond to two light beams a and a shown in Fig. In addition, for convenience at Fig.9 it is shown that two light beams a and I arrive at the same point on the second element 112 redirect light radiation.

In connection with the fact that from the source 104 light into the fiber comes the light rays passing between two light rays a and a (see Fig), reflective part 110, shown in Figure 9 will be covered such light rays (not shown), the magnitude of the angle of incidence of which will not exceed the limit values, which refer to two shows incoming light rays a and a.

Reflective part 110 tilted relative to the normal to touch the surface of 130, and this forms part of touch surface, the angle of?, the value of which is approximately 81 degrees. The magnitude of the angle of? can be different, that is, the angle can be in the range from 60 to 89 deg or in the range of 70 degrees to 86 degrees and, in addition, the magnitude of the angle of? can be determined by subtracting from 180 degrees of the value of any corner, related to the above limits.

Additionally, reflective part 110 may include various areas (not shown)that can form different angles touch surface 130.

Due to the tilt reflective part 110 relatively touch the surface of 130 angle of reflected light rays 106b1 and 106b2 relatively touch the surface of 130 different from the angles of incidence of light rays a and a. Each of the reflected light rays 106b1 and 106b2 forms an angle with the normal to touch the surface of 130, and the value of this angle does not exceed the critical angle q c.o object (not shown), but it exceeds the critical angle q S.A. the environment. Thus, when the object is not in contact with the sensor surface 130 reflected light rays 106b1 and 106b2 go through the touch of a light guide 108 of the second element 112 redirect light radiation to the first element 114 redirection of light radiation, which is achieved through the availability of full internal reflection from the touch surface 130. However, in the case of contact of the object (not shown) with touch surface 130 in light rays 106b1 and 106b2 can be made violations.

Similarly light radiation (not shown), covering the fourth item 122 redirect light radiation is deflected in the direction of the third element 124 redirect light radiation, and at run time, reject the change in the value of the angle that the light beam (not shown) forms touch surface 130. In light beam (not shown)sent in touch with the fiber 108 of the fourth item 122 of the third item 124, may be made of a violation by the object (not shown)in contact with the sensor surface 130.

Figure 10 presents a cross-section taken along the line x-X (see Fig.7). Figure 10 shows, among other elements, the first element 114 redirection, light radiation and of the touch of a light guide 108. The first element 114 is to perform at least two functions. The first function of the first element 114 redirection light radiation is that it provides a deviation at least part of the light rays coming from the second element 112 redirect light radiation in the direction of the detector matrix 120 as shown in Fig.7. The second function of the first element 114 redirection light radiation is that when the passage of light radiation is carried out by means of a light guide 108, the first element 114 not accept violations of the object (not shown)in contact with the sensor surface 130, at least in part light radiation, rejected this element in the direction of the detector matrix 120.

Figure 10 shows the four light beam 106b1, 106b2, 106b1b and 106b2b that come to the first element 114 redirection, light radiation and are rejected by this element. The arrows indicate the direction of the passage of light rays 106. For convenience it is shown that four light beam 106b1, 106b2, 106b1b and 106b2b arrive at the same point on the surface of the first element 114 redirection of light radiation.

Four light beam 106b1, 106b2, 106b1b and 106b2b shown in Figure 10, represent the possible angles of incidence to the first element 114 redirection of light radiation. Such income of these rays caused by reflection of two light rays 106b1 and 106b2 from the second element 112 redirect light radiation (see Fig.9).

Light, as light beam 106b1, 106b2, 106b1b or 106b2b, coming to the first element 114, may come from above, as the rays 106b1 and 106b2, marked by a solid line, or from the bottom, as the rays 106b1b and 106b2b, dotted line. The direction whence comes the light beam 106b1, 106b2, 106b1b or 106b2b, i.e. it comes from above or from below, depends on the following factors: the distance between the point of entry to the second element 112 redirect light radiation and the point of admission to the first element 114 redirection of light radiation, the distance between the sensor surface 130 and second surface 134, and the magnitude of the angle formed by the data of the light beam with a multi-touch surface 130.

The light reflecting 116 part of the first element 114 redirection of light radiation, which is shown in Figure 10, tilted relative to touch the surface of 130, resulting in an angle?, the value of which is essentially equal to the value of the angle of?. The angle of? is the angle formed reflective 110 part of the second element 112 redirect light radiation with a multi-touch surface 130 (see Fig.9). In this case the incoming light rays from above 106b1 and 106b2, which are indicated by the solid line, will be reflected in such a way that the corresponding reflected light rays sa and sa, also marked by a solid line, form a touch surface 130 almost the same angles as the angles formed by the light rays a and a received inside the touch of a light guide 108 shown in Fig. When light rays coming from below 106b1b and 106b2b that dotted line, will be reflected in such a way that the corresponding reflected light rays 106c1b and 1062b, also indicated by the dotted line, will form the normal to touch the surface of 130 corners, with smaller values than the values of the angles formed by the incoming light rays 106b1b and 106b2b.

Approximately half light radiation covering the first element 114 redirection light radiation comes from above, and values formed angles will not exceed those values that relate to two shows incoming light rays 106b1 and 106b2, marked by a solid line. Accordingly, from below comes the other half light radiation covering the first element 114, and values formed angles will not exceed those values that relate to two shows incoming light rays 106b1b and 106b2b, dotted line.

In connection with the fact that the reflected light rays sa and sa, marked by a solid line, form a touch surface of 130 such angles which, in essence, are within the same limits, and the angles formed by the light rays a and e, which are shown in Fig, light rays sa and sa will be directed through the touch of a light guide 108 on the detector array 120. Object (not shown)in contact with the sensor surface will not be able to make a breach in light rays (not shown), the values of angles which do not go beyond those values that relate to the light rays from sa and sa. This is because the light rays that are not shown, constitute touch the surface of 130 such angles of incidence, size of which exceeds the critical angle q S.D object (not shown).

Reflected light rays 106c1b and 1062b dotted line, can, due to the large angle of incidence on the touch surface 130, not to be subjected to total internal reflection from proceeds to touch the surface of 130. The device 102 includes coverage 131, made in the form of strips (or regular coverage), which serves to make violations, at least in part of the light rays 106c1b and 1062b. Making violations can be done by withdrawing, scattering, absorption, or by any combination of these methods of application of violations. The coating is made in the form of strips, may include material, the value of the refractive index which does not exceed the value of the refractive index of the object, that is, the specified value of the material may be approximately equal to the refractive index of water or exceed this figure. In an embodiment devices floor 131 placed in the fiber 108, with floor 131, which gives shape, is missing.

Alternatively, covering 131 or as a complement to the floor in an embodiment of the device can be applied to a different principle, providing assurance that the light rays, such as: light rays 1061b and 1062b not reach the detector matrix 120. Due to the fact that the light rays 106c1b and 1062b can be made violations during their passage from the first element 114 redirection light radiation to the detector matrix 120, may be desirable that the light rays 106c1b and 1062b did not reach the detector matrix 120. For example, can be prevented excretion of light rays 106c1b and 1062b from a fiber 108 in the direction of the detector matrix 120. This task can be accomplished through the use of spatial filtering between array 120 and fiber 108. Spatial filtering can be done, for example, through the creation of the air gap between fiber 108 and array 120. The use of spatial filtering through the creation of the air gap, is a guarantee that used on the detector array will be the light that passes, essentially, in a plane parallel to touch the surface of the fiber, that is, on the detector array will be the light rays sa and sa. Furthermore, the use of spatial filtering through the creation of the air gap, is a guarantee that used on the detector array will not receive the light, which is not, essentially, in a plane parallel to touch the surface of the fiber, that is, on the detector array is not received light rays 106c1b and 1062b. Light radiation, which can not be made violations object in contact with the sensor surface is the light that passes, essentially, in a plane parallel to touch the surface of the fiber.

Given all of the information above, it can be argued that this represents the device 102, which is used to encode the location of the point of contact (not shown) feature (not shown) with touch surface 130 and coding is done by putting the violations in the light (light) at the point of contact (not shown). The object is situated at the point of contact, makes a breach in light rays 106 from a source 104 light radiation and going inside the unit 102 in different directions, and these light rays change the direction of the passage, as a rule, three times, and eventually arrive at the detector array 120. At the initial stage of passage of the light rays inside the unit 102 these rays form such angles touch surface 130 that avoid making violations of these rays specified object. Elements 112, 114, 122, 124 redirect light radiation form the corners with a multi-touch surface 130. The magnitude of these angles are that in the result of reflection undertaken reflective parts 110 and 128, light radiation, held in the unit 102, forms such angles touch surface 130 in which the above facility may be made distortions, at least in part of the light beam. After further reflection undertaken reflective parts 116, 125, light radiation goes again inside, and at this stage touch surface 130 formed such angles that avoid introducing distortions in the light of the above object.

Of course, can be considered other options device 102, which was higher. For example, in one embodiment, the device (not shown), which is similar to device 102, light radiation emitted by the corresponding source may form such angles touch surface that will go beyond the established range considered with reference to Fig. The work of this option, the device may be similar to the device 102, but with the difference that the process of determining the position of the point of contact will become more complex and less precise.

Figure 11 shows schematically the fiber 408 device 402 cross section. The fiber 408 equipped with a layer or coating 4 33, employees to make violations in this light 406, the value of the angle of incidence of which does not exceed a certain threshold set by the angle near. Making violations can be done by withdrawing, scattering, absorption, or by any combination of these methods of application of violations. Layer or covering 4 33 may include material, the value of the refractive index which does not exceed the value of the refractive index of the object, that is, the specified value of the material may be approximately equal to the refractive index of water or exceed this figure. Thus, that part of the light rays passing first or third element redirect light radiation to the detector matrix, which forms such angles touch surface, which make possible violations, for example, water or object will be removed from the device in advance. As a result, light rays passing from the first or the third of the above items to the crystal matrix, will make a minimum contribution to the intensity distribution of the light emission for this matrix.

On Fig schematically presents the view from the top of the device 202 according to this invention. The device 202 includes planar touch fiber 208, equipped with a multi-touch surface 230, and also planar first transmitting fiber 236 radiation. Fiber optic cables 208 and 236 laid in the form of the pile (see Fig and 14, each of which presents a cross section of different parts of the instrument 202).

With the passage of light radiation emitted by the source 204, in the direction of the detector matrix 220 one part of this radiation is carried out by means of the first transmitting fiber 236 radiation, and the other part is conducted by the touch of a light guide 208. In addition, when the energy travels from source to 204 detector matrix 220, elements, 212, 214, 222 and 224 redirect light radiation rejects the light between the fibers. On Fig presented as an example of a light ray 206, including light rays a, 206b and s. Light rays a and C dotted line with an arrow, conducted by the first transmitting fiber radiation 236, while the light beam 206b, marked by a solid line with the arrow goes through the touch of a light guide 208. It should be noted that, being designed on a plane Hu (viewed from above), the path of light radiation, such as light beam 206 passing inside 202, like the paths of light rays passing inside the unit 2 and inside the device 102.

It is desirable that the object (not shown)in contact with the sensor surface 230, made violations solely in the light, running from the second element 212 redirect light radiation to the first item 214 redirect light radiation (in this case in light beam 206b), and also in light passing from the fourth item 222 redirect light radiation to the third element 224 redirect light radiation.

Accordingly, as discussed above, the dignity of the joint use of sensory light guide 208 first and transmitting fiber 236 is that it is light, in which advantage may be made of a violation by the object (not shown)in contact with the sensor surface 230, and then the light emission, in which advantage may not be made violation by this object that can be strictly separated from each other.

Light radiation is directed through the touch of a light guide 208 of the second element 212 redirect light radiation to the first item 214 redirect light radiation, forms such angles relative to touch the surface of 230 that their value does not exceed the critical angle q c.o object (not shown), but higher than the critical angle q S.A. the environment. Accordingly, light radiation (not shown)sent via touch-fiber 208 of the fourth item 222 redirect light radiation to the third element 224 redirect light radiation, forms such angles relative to touch the surface of 230 that their value does not exceed the critical angle q c.o object (not shown), but higher than the critical angle q S.A. the environment. Thus, the object (not shown)in contact with the sensor surface 230, for example, at some point on this surface, also reflecting light beam 206b, makes a breach in light beam 206b through, for example, removing the beam from the touch of the fiber 208. Thus, dignity, which were mentioned in relation to device 102, are also applicable to the device 202.

In one embodiment, the device (not shown) first transmitting fiber radiation includes the touch surface.

On Fig presents a cross-section taken along the line of the XIII-XIII (see Fig). On Fig, among other items shown the second element 212 redirect light radiation. The lines with arrows indicated by light rays 206 emitted by the source 204 (see Fig), and the light rays 206 fall on the reflective part 210 second element 212 redirect light radiation. Light rays 206, which take place inside the first transmitting fiber 236, reflected in such a way that they do in touch fiber 208 and go in the direction of the first item 214 redirect light radiation.

Reflective part 210 second element 212 redirect light radiation includes the first reflective area of 240 and second reflective section 242, which are, essentially, at right angles to each other. The surface of the second reflective of section 242 includes consistently located zones that are inclined planes which form the corners of approximately +9 degrees and -9 degrees. These angles formed relative to the normals to the first reflective section 240, are alternately alternating. Tilts planes tailored to a specific range of values of angles related to the light rays emitted by the source 204. For example, in one embodiment, the device (not shown) ramps can form the corners with other values, such as corners, lying within the range of 1-20 degrees.

Light radiation comes from a source 204 inside the first transmitting fiber 236 just as in the device 102 light radiation comes from a source 104 inside the touch of a light guide 108. Therefore, the first reflective area of 240 shown in Fig, illuminated, essentially, these light rays, the magnitude of the angle of incidence which do not go beyond those values that relate to two light beams 206 entering the first reflective section 240.

Second reflective section 242 has such a form that is reflected from it light rays 206, which pass in the direction of the first item 214 redirect light radiation, constitute such angles touch surface that the object (not shown)in contact with the sensor surface 230, can make a breach in light rays 206 during their passage in the direction of the first item 214.

The fourth element 222 redirect light emission functions like.

For the separation of fibres between the first transmitting fiber 236 and touch fiber 208 laid insulating layer 244. The application of this layer prevents the penetration of light radiation, taking place inside one of the fiber optic cable, the other light conductor.

On Fig presents a cross-section taken along the line of the XIV-XIV (see Fig). Among other items on Fig shows the first item 214 redirect light radiation. This item 214 is essentially identical to the second element, 212 redirect light radiation. On Fig as the example shows eight of the light rays 206 which deviate reflective section 216 of the first item 214 redirect light radiation. Light rays 206, which are inside the touch of a light guide 208, proceed at first reflective section 246 reflective part 216, and some of the light rays 206 subsequently reflected the second reflective section 248 reflective part 216, resulting those rays begin to go in the direction of the detector matrix 220, which is achieved through the use of the first transmitting fiber 236.

First reflective section 246 and second reflective section 248 are, essentially, at right angles to each other. However, the surface is reflective of the first section 246 includes consistently located zones that are inclined planes which form the corners of approximately +9 degrees and -9 degrees. These angles formed relative to the normals to the second reflective section 248, are alternately alternating.

Four of the eight light rays 206 entering the first reflective section 246 indicated by solid lines, while the other four light dotted line. Each of the four light rays 206 dotted line that runs parallel to the appropriate beam of four light rays 206 indicated by solid lines. Four light beam 206, dotted lines, and four light beam 206 indicated by solid lines, proceed on two adjacent plane first reflective of section 246, which are not parallel.

Those lines that go beyond reflective 216 part or surface of the first transmitting fiber 236, indicate that the corresponding light does not go in the direction of the detector matrix 220. The corresponding light beam can be deduced, absorbed, scattered, that is rejected in a General direction, and in this case on completion of this beam could have an impact several of the factors in any combination.

In one embodiment, the device (not shown), which consider such variant, first of transmitting fiber comes this light beam, which forms touch surface angle, the value of which does not exceed the critical angle q S.D object.

The third element 224 redirect light emission functions like.

In one embodiment, the device (not shown) light radiation, coming to the first element redirection of light from the second element redirect light radiation is deflected in the direction of the detector matrix by passing it through touch fiber. Similarly, the light beam entering the third element redirection of light from the fourth element redirect light radiation, also declined in the direction of the detector matrix, passing through touch fiber.

In one embodiment, the device (not shown) light radiation emitted by the corresponding source, you enter in touch fiber, making light goes in the direction of the second element redirect light radiation. Similarly, the light beam emitted by the corresponding source, you enter in touch fiber, making light goes in the direction of the fourth element redirect light radiation.

On Fig presents part of the device 1002 according to the invention, with the figure shows the cross section of reflective part 1010 second item 1012 redirect light radiation. The device 1002 like device 202. Reflective part 1010 includes the first reflective of land 1040 and second reflective section 1042. Second reflective section 1042 includes three consistently located zones that are inclined planes which form the corners of approximately +9 degrees and -9 degrees. These angles formed relative to the normals to the first reflective area of 1040, are alternately alternating. The area of the second reflective section 1042, which is located closest to the first reflective area of 1040 forms with the first reflective of land 1040 obtuse angle. The presence of such a corner it is necessary for optimal input of light radiation coming from the first transmitting fiber 1036, in touch fiber 1008. The lines with arrows denote those given as an example of the light beam 1006 which, passing inside the first transmitting fiber 1036, rejected reflective part 1010 so that they do touch inside the fiber 1008.

On Fig schematically presents the view from the top of the preferred option execution devices 302 according to this invention. The operation of the product 302 similar to the device operation 202. However, the device 302 includes three planar waveguide, which is shown in Fig-20. The device 302 includes planar first transmitting fiber 336 (see Fig), planar transmitting the second fiber 338 (see Fig) and planar touch fiber 308 (see Fig). Three planar waveguide stacked in piles, and the first transmitting fiber 336 and second transmitting fiber 338 are the lower layers of the stack, and the top is a touch fiber 308. This arrangement touch fiber 308 does touch the surface of 330 available for the object (not shown).

Light radiation is directed through the touch of the fiber 308 from the second element 312 redirect light radiation to the first element 314 redirect light radiation, forms are corners and the normal to touch the surface of 330 that their value does not exceed the critical angle q S.D object (not shown), but higher than the critical angle q S.A. the environment. Such a statement is applicable to light radiation is directed through the touch of the fiber 308 from the fourth item 322 redirect light radiation to the third element 324 redirect light radiation. Thus, the object (not shown)in contact with the sensor surface of 330, can make a breach in light radiation, say no to the second element 312 in the direction of the first element 314 and in light radiation, say no to the fourth element 322 towards third element 324. Thus, those advantages that apply to device 102 and 202, are also applicable to the device 302.

On Fig as an example presents a light beam 306 emitted by the source 304, and this light beam enters the second transmitting fiber 338 (see Fig) in order to pass in the direction of the second element 312 redirect light radiation. The second element 312 rejects the light beam 306 in such a way that it arrives in touch fiber 308 in order to pass in the direction of the first element 314 redirect light radiation (see Fig). The first element 314 rejects the light beam 306 so that it enters the first transmitting fiber 336 in order to pass in the direction of the detector matrix 320 (see Fig). For a designation of a light beam 306 use different lines, namely: if this light beam is directed second transmitting fiber 338, use the dotted line if the light beam is directed touch fiber 308, it uses a solid line, and in the case of a direction of the light beam first transmitting fiber 336 used dotted line with dots. On Fig to indicate detector matrix 320 used dotted line with points that indicates that the light beam directed through the second transmitting fiber 338 and touch fiber 308, not directly on the detector array 320.

On Fig shown that light radiation emitted by the source 304, covers essentially all reflective part 310 second element 312 redirect light radiation. In addition, Fig shown that light radiation emitted by the source 304, covers essentially all reflective part 328 fourth element 322 redirect light radiation.

The device 302 has the advantage that in the plane, located almost the entire surface of the touch fiber 308, light rays pass as from the second element 312 redirect light radiation, and on the fourth item 322 redirect light radiation (see Fig). Thus, the size of the touch surface can be substantially increased relative to the length of the touch fiber 308 in the XY-plane.

In addition, the device 302 has the advantage that to achieve that light has not received directly from the source of light radiation 304 on the detector array 320, it is not necessary to make special efforts that may be to add an item (not shown) before the specified source 304.

Thus, through the use of devices 302 possible to establish the position of the point of contact of the object (not shown) with the touch surface is touch 330 fiber 308.

On Fig schematically presents the view from the top-touch device 502 according to this invention. The device 502 includes the following elements: planar touch fiber 508, with a touch surface 530; the first set of sources of light radiation 550; a second set of sources of light radiation 552; the first item 514 redirect light radiation with reflective part 516; the third element 524 redirect light radiation; the detector array 520. Object (not shown) can interact with the device 502 just as the object (not shown) communicates with the device 102. In other words, the object (not shown)in contact with the sensor surface 530, can make a breach in the light flowing in the direction of the first item 514 redirect light radiation, but the facility could, primarily, not to make a breach in the light, say no to the first element 514 in the direction of the detector matrix 520. The third element 524 redirect light emission functions like.

Option of the device 502 has the advantage that a light ray that goes in the direction of the detector matrix 520, is rejected as by item 514 redirect light radiation and item 524 redirect light radiation only once.

On Fig light beam 506 marked by a solid lines with arrows; light beam 506 runs from the first set of sources of light radiation of 550 in the direction of the first item 514 redirect light radiation, and then a light beam 506 goes in the direction of the detector matrix 520. Light beam 506 includes two beams 506b and s. Light beam 506b forms a sort of angle with the normal to the touch surface 530, the value of which does not exceed the critical angle q S.D object (not shown), but it exceeds the critical angle q S.A. the environment. Thus, the object (not shown)in contact with the sensor surface 530, can make a breach in light beam 506b during the passage of this beam in the direction of the first item 514 redirect light radiation.

The first item 514 redirect light radiation rejects the light beam 506 so that the light beam is goes in the direction of the detector matrix 520. During the passage of a light beam is this angle forms a sort of angle with the normal to the touch surface 530, the value of which exceeds the critical angle q S.D object (not shown). Thus, the object (not shown) may not make a breach in light beam s during its passage in the direction of the detector matrix 520.

By using the first set of sources of light radiation 550 is covered almost all reflective parts 516 first item 514 redirect light radiation.

Similarly, from the second set of sources of light radiation 552 towards third element 524 redirect light rays emanate the light rays (not shown), which then pass in the direction of the detector matrix 520. Accordingly, these light rays are characterised by the same signs that light rays emanating from a variety of sources 550.

On Fig schematically presents top view options for performing touch devices 602 according to this invention. Unit 602 includes the following elements: planar touch fiber 608, with a touch surface 630; source of light radiation 604; the second element 612 redirect light radiation with reflective part of the 610; the fourth item 622 redirect light radiation; first the detector array 654; second, the detector array 656. Object (not shown) can interact with the device 602 just as the object (not shown) communicates with the device 102. In other words, the object (not shown)in contact with the sensor surface 630, can make a breach in light radiation, rejected the second element 612 redirect light radiation, but the facility could, primarily, not to make a breach in light radiation emitted by the source 604 in the direction of the second element of the 612. The fourth item 622 redirect light emission functions like.

Option of the device 602 has the advantage that the light ray is emitted by a source 604 light radiation, is rejected as by item 514 redirect light radiation and item 524 redirect light radiation before it will arrive at the detector array 654/656 only once.

On Fig to refer to a light beam 606 used solid lines with arrows. Light beam 606 takes from source 604 light radiation in the direction of the second element 612 redirect light radiation, which deflects the light beam 606 in the direction of the first crystal matrix 654.

Light beam 606 includes two beams a and 606b. Light beam a forms a sort of angle with the normal to the touch surface 630, the value of which exceeds the critical angle q S.D object (not shown). Thus, the object (not shown) may not make a breach in light beam a.

Similarly, from 604 source of light radiation in the direction of the fourth item 622 redirect light rays emanate the light rays (not shown), which then pass in the direction of the second detector matrix 656. Accordingly, these light rays are characterised by the same signs that light rays emanating from a source 604 towards the fourth item 622.

On Fig-25 presented different versions of the device according to the invention, and in these cases the detector matrix differ from each other. Any of the options presented on Fig-25, can be combined with any of the devices discussed above, which include devices 2, 102, 202, 302, 402, 502 etc.

On Fig schematically presents top view options for performing touch devices 702 according to this invention. Crystal matrix 720 is located behind the focus point 758 four extreme light rays 706. The installation of the detector matrix 720 per point 758 focus light rays 706 becomes possible to establish the second element 712 redirect light radiation and fourth element 722 redirect light radiation end-to-end to each other. Accordingly, considerably increases the area of that part of the touch surface 730 that can be used. To correct interference, which can be determined by entering the detector array 720 unwanted light radiation, near the point 758 focus or directly at the given point can be installed filter. Versions of the devices shown on Fig and 25, may include such a filter is installed near or within the focus point. A variant of execution is the device that includes filter is shown Fig.

On Fig schematically presents top view options for performing touch devices 802 according to this invention. The main part of the device 802 similar device 702, and for this reason the unit 802 operates almost exactly the same as the device 702. In addition, the device 802 inherent essentially the same dignity. The device 802 includes optical element 860 set in front of the array 820. Optical element 860 may constitute an element serving to image. Optical element 860 ensures appropriate further spread of radiating light radiation before this radiation will arrive at the detector array 820. As a result of application of the optical element 860 can make full use of relatively wide the detector array 820 installed at a shorter distance from the point 858 focus than the distance that is possible without the use of an optical element 860.

On Fig schematically presents top view options for performing touch devices 902 according to this invention. Unit 902 like device 702, unit 802. Light rays 906, within the past touch fiber 908, sent item 962 down before the light rays 906 will arrive at the detector array 920. This deviation rays has the advantage that the size of this option, the device run in the XY-plane is reduced. In one embodiment, the device (not shown) detector matrix is completely covered with touch-sensitive optical fiber that provides an even greater reduction in the size in the XY-plane relatively to the device 902.

In addition, versions of the device is presented with reference to Fig-25, have the advantage that the detector array can only come that light, which takes place essentially in the yz-plane in the direction corresponding to the first element redirect light radiation, or which takes place essentially in the xz-plane in the direction corresponding to the second element of the redirection of light radiation. For example, the above feature of the above embodiment of the invention can be useful, particularly in the case of combination with the device 502. It must comply with the condition, namely, that at least one source of light radiation, part of the first set 550, emits light in the direction of not passing in the yz-plane, or consists in the fact that at least one source of light radiation, included in the second set of sources 552, emits light in the direction of not passing in the xz plane.

On Fig schematically presents a cross-section options for performing device 1202 according to this invention. In order to simplify the drawing are missing all the elements redirect light radiation. Presented drawing, you can see that one reflection and the corresponding point of incidence of the light beam 1206, located on the touch surface 1230 can with good accuracy corresponds to a point of falling on the detector array is the two-dimensional 1220 and Vice versa. This feature can be used in this embodiment, the device (not shown) according to this invention, which includes a two-dimensional the detector array, the first element redirect light radiation and the second element redirect light radiation. Thus in this embodiment, the device there is no need to use third element redirect light radiation and fourth element redirect light radiation for two-dimensional coding point of contact object with a multi-touch surface. As shown in Fig, the x-coordinate of the touch surface corresponds to the x coordinate two-dimensional detector matrix, and the coordinate of the touch surface corresponds to the z coordinate of a two-dimensional crystal matrix.

On Fig a schematic view of the cross section of options for performing touch devices 1302 according to this invention. In the light of 1366 installed below the touch device, the device 2, 102, 202, 302, 402, 502, 602, 702, 802, 902, 1002, 1102 or 1202 inserted microstructure 1364. Light radiation 1368, deny microstructure 1364, passes through touch the surface of the touch devices in order to provide information to the user 1370, for designation of which used a picture of the eye. In order to simplify the drawing is not displayed refraction of light radiation 1368 or any other optical phenomenon.

On Fig a schematic view of the cross section of options for performing touch devices 1402 according to this invention. Below the touch devices, such as: the following devices 2, 102, 202, 302, 402, 502, 602, 702, 802, 902, 1002, 1102, 1202 or 1302 mounted display 1472. This display is used to present information to the user 1470, for designation of which used a picture of the eye. In the result of combination of the display 1472 touch device according to the invention, we get the touch screen.

On Fig a schematic of this option is to perform a sensor unit 1502 according to this invention, which includes the device 1574 signal processing. This device 1574 adapted for encoding position of the point of contact of the object with touch fiber (not shown) touch devices 1502. In one embodiment, the device 1574 signal processing is made with the possibility of calculation of the following parameters: contact area of the object with touch-sensitive optical fiber, the speed at which the object is in contact with touch-sensitive optical fiber, the magnitude of the acceleration occurring in contact object with touch fiber.

On Fig schematically presents the view from the top of this version of the run-touch device 1602 according to this invention, which includes a certain number of cores 1676, which is essentially linear, and light radiation is held within each of the cores in the longitudinal direction. Shown Fig core 1676 built in the first transmitting fiber. Thus, the object (not shown)in contact with the sensor surface, can't make a breach in the light emission by a linear core 1676. Core 1676 intended for the direction of light radiation from the source 1604 light radiation to the second item 1612 redirect light radiation. Core 1677 intended for the direction of light radiation from the source 1604 to the fourth element 1622 redirect light radiation. A certain number of linear hearts (not shown) can be adapted to the direction of light radiation in the direction from the first element 1614 redirect light radiation to the detector matrix 1620. In addition, a certain number of linear hearts (not shown) can be made with the possibility of the direction of light radiation from the third element 1624 redirect light radiation to the detector matrix 1620.

On Fig presents a cross-section taken along the line of the XXXI-XXXI (see Fig).

On Fig schematically presents top view options for performing device 1802 according to this invention. The presented variant includes a filter installed at the focus point 1858 in order to eliminate interference, which can be determined by entering the detector array 1820 unwanted light radiation. The filter is schematically represented as a point aperture formed at the plate 1880. Plate size 1880, shown on the drawing, selected as an illustrative example.

On Fig schematically presents top view options for performing device according to the invention. The presented variant may include an optical fiber consisting of one layer or multi layers (this fiber can consist, for example, from one layer or two or three layers). In a place distant from the source of light radiation 1904 at the greatest distance is selected item 1982, functioning as a reflector. The surface of the specified element 1982 curved in the XY-plane. Light radiation 1907, coming from a source 1904, rejected such a way that the resulting variations of light radiation 1906 held, respectively, in the direction of the second element 1912 redirect light radiation in the direction of the fourth item 1922 redirect light radiation. Rejected light 1906 dotted line. Preferably, the deviation is through reflection. Preferably, the element 1982, functioning as a reflector, is a mirror. Preferably, there is a uniform distribution of the rejected light radiation 1906, resulting in the second element 1912 redirect light radiation and fourth element 1922 redirect light radiation shall be adequately lighted. The fact that the source of light radiation 1904 as close to the detector matrix (not shown)may be a dignity that is because may be reduced to the required space around the fiber.

As mentioned above, the position of the point of contact can be determined based on changes in the distribution of the light intensity detected through the use of a crystal matrix. Preferably, the position of the point of contact is determined by identifying array of the changes related to the intensity distribution of the light that take place on the x coordinate and the y coordinate. If at the moment of time is only one touch, the changes identified in relation to the coordinates x and y refer to the touch.

If during this period of time there were two contact points or more, which can occur when different points touch surface simultaneously contact one object or multiple objects at once, then, by applying the detector matrix can be set proportional to the number of coordinates representing touch. However, there may be difficulties in determining what combination of installed coordinates are real point of contact. In addition, two points of contact or more data points can refer at least to the same coordinate. Thus, the number of identified coordinates representing the touch, might not be proportional to the number of various points of contact, taking place during a given period of time.

Preferably, the device according to the invention, are made so that the user of the device may cause the input by creating during this period of time two contact points or more of their number. The emergence of these points may be due, for example, simultaneous touching the device fingertips of the user.

On Fig-38 presents the signals received during the direction of measurements that can be used in order to explain the ways of establishing the relationship between identified by coordinates. Thus, these signals can be used to determine the points of contact. Signals presented on Fig-38, serve to demonstrate how there may be a relationship between the two sets of coordinates arising, for example, touch two fingers to touch the surface of the device. However, as mentioned above, the method can be applied in the case, if during this period of time is more contacts.

On Fig illustrated identification of the following four coordinates: x 1 , x 2 , y-1 and y 2 . You can see that the profile of signals relating to the coordinates x1 and the y 1 , similar to each other, and the profiles of signals related to the coordinates x 2 and y 2 , also similar to each other. Thus, a conclusion can be made about what x 1 1 and y are coordinates that corresponds to the first touch, and x 2 and y 2 are the coordinates of the second touch. Profiles of signals relating to this period of time, can be analyzed through the use of methods, well-known in the art. For example, a comparison can be subjected width and/or depth of the valleys that serve to represent the coordinates of the contact.

On Fig schematically presents an example of a signal, measured by a detector matrix, which is a function of the coordinates of the detector matrix for the two different segments of time. The dotted line indicates the signal, measured after a short period of time after the moment with the touch surface is touched two objects. Solid line denotes the signal, measured after a short period of time after took place the measuring signal, a dotted line. Changing the shape of the signal may be due, for example, the fact that the object changed the contact area is due to the fact that they began to put pressure on the touch surface with greater force (under this condition the contact area may increase if the objects are the fingers). From a drawing that was to establish, develop any coordinates due to the same touch, difficulties may arise with the proviso that only uses the signal, which is marked by a solid line. However, using the data submitted by the signal dotted line, ensures a more reliable result.

Preferably, to establish the relationship between identified by the coordinates of a set of data representing the measurements. To obtain these data are used signals, such as those that solid and dotted lines, and data signals are measured light intensity as a function of coordinates with respect to different segments of time.

On Fig schematically presents an example of a signal, measured in four specific coordinates (a, b, C and D) detector matrix, and this signal is a function of time. In order to better view the received signal four curves are shifted relative to the axis reflecting the magnitude of the signal. Each of the four coordinates correspond to the coordinate of the contact. The measured signal, which is a function of time, is used to assess the relationship between identified by coordinates, i.e. to establish, for example, how specifically to coordinate correspond to the given coordinates of agriculture Through the implementation of any of those tests that are used to establish the relationship between the curves, which are known in the art, you can determine the appearance of any coordinate due to the same touch. In the presented example the relationship exists between the curves a and C and between the curves In and D.

It is obvious that the invention is not limited to the above variants of execution devices. You can also combine any of the above characteristics of these options.

An object can be stylus, finger or any other physical object that can be used for contact with touch device, relevant to this invention. The refractive index of the topmost rough skin layer, located at your fingertips, has a very stable the amount of approximately 1,47. According to the invention, during contact with touch device will move the object. Alternative or additional object can hold in your hand.

The object can make a breach in light passing within touch of fiber in various ways. For example, an object may change the direction of the passage of light radiation, which can be achieved by removing light radiation from the touch of the fiber, as well as through the absorption or scattering of light radiation. In addition, there may be any combination of the above-stated ways of changing the direction of passage of light radiation. As an alternative or Supplement to the above methods, the object can make a breach in light passing inside the touch of a light guide, by changing the intensity or distribution of the intensity of light radiation arriving at the detector array. This change is achieved by removing light radiation from the touch of the fiber, as well as through the absorption or scattering of light radiation. In addition, there may be any combination of the above methods, changes in the intensity or distribution of the intensity of the light beam.

Coding point of contact of the object with the touch surface of the touch devices suitable for the invention, may be concluded in the position of a point or area of contact, and in determining the change in the position of a point or area of contact of the object with a multi-touch surface. In addition, there may be a combination of the above methods.

The point of contact of the object with touch fiber can represent some part of the site of contact, or the given point can be installed at the site of contact, i.e. it can represent, for example, the geometric centre of the specified area. For example, an object may leave a trace in the form of a ring. However, it is desirable that the contact point was defined as the geometric centre of the specified track, which has the shape of a ring.

The object can be carried out in this direction to touch the surface, which is the intersection with the sensor surface in an imaginary point of contact, which differs from the actual point of contact. The set point of contact can be an imaginary point of contact, derived from the actual point of contact. In General, may be such interaction of the object, touch the surface, and the user under which you may need to identify a virtual point of contact, which differs from the actual point of contact.

In versions of the device, for example, in version 7, which in light ray is emitted by a light source radiation and going in the direction of the detector matrix, violations may be made subject only when light passes from the second element redirect light radiation to the first element redirect light radiation, or only when light passes from the fourth element redirect light radiation to the third element redirect light radiation, the point of contact of the object with a touch device can be detected by simple geometric computing. This is because the point of falling on the detector array, asked light beam passed from the second element redirect light radiation to the first element redirect light radiation, corresponds to a specific coordinate x, and at that point falling on the detector array, asked light beam passed from the fourth element redirect light radiation to the third element redirect light radiation, corresponds to a specific coordinate, which was explained with reference to Figure 1.

In General, the specific point of falling on the detector array is fully consistent with a particular path of the light beam emitted by the source of light radiation in the direction of the detector matrix. Thus, a decrease in the perceived intensity of light at a specific point, located on the crystal matrix indicates that the object is made a breach in the light emission to the contact point located within the path of the corresponding light beam. Then the point of contact can be defined as the intersection of those pathways of light radiation within which light was made violation of the object.

Thus, the point of contact of the object with a touch device can be determined by identifying the points of intersection of a number of paths of light rays emitted by the light source radiation in the direction of the detector matrix. It should be noted that takes into account the corresponding distribution of the intensity of light radiation arriving at the detector array, or a change in the distribution of the intensity of light radiation arriving at the detector array.

Touch the device corresponding to the given invention, can be designed in a way that will work with one object with specific characteristics, or with a large number of such objects. The refractive index of the corresponding part of the specified object or objects exceeds a certain amount, such as, for example, the refractive index of the air, and, primarily, higher than the refractive index of water. Touch the device according to the invention can be designed for a single object so that any other member or any other environment that come into contact with the sensor surface will not make a breach in fiber optic properties of the fiber under the condition that the refractive index of another item or other environment will not exceed the refractive index of the object. It should be noted that the refractive index of the element or the environment may be around 2%, 5%, 7%, 10%, 15% or 20% less than the value of the refractive index of the object. Moreover, such a sensor device for one object or multiple objects according to this invention can be designed so that the refractive index of the corresponding part of the object does not exceed a certain value. As a result of this object in contact with the sensor surface will not make a breach in those light rays angle, which touch on the surface are of large size, but it will make violations in those light rays angle, which touch on the surface are of small size. In this case, the refractive index of the corresponding part of the object should not exceed the established limits.

Light is an electromagnetic radiation relating to such wavelength range, which includes visible light, ultraviolet light, and infrared radiation.

Light pipe, made according to the invention, is an element that is able to keep and guide passing within him light radiation, i.e. may limit the area of space, within which can be light radiation.

Light pipe, made according to the invention, may refer to the crystal matrix of light radiation from appropriate source, through the partial, predominant or exclusive use of total internal reflection. As an alternative or addition to the above statement is the fact that the fiber can send light through the creation of reflections, for example, from one or more of metal surfaces.

Light pipe, made according to the invention, includes the core, representing the amount of light pipe, inside of which passes light coming from the appropriate source.

In the fiber, made according to the invention, at least part of the core may be coated or this part may be enclosed within a shell. For example, the surface opposite touch the surface of the sensor device, can be included inside a shell that ensures the prevention of deducing of light radiation of sensor devices on the opposite surface.

It should be noted that fiber optic properties of fiber are determined by the interaction between the core of the fiber and medium surrounding the core of the fiber. As an example, the interaction between the core of the fiber and arbitrary shell or coating, and perhaps also between the medium surrounding the core, and arbitrary shell or coating.

Light pipe, made according to the invention, may involve the heart, which is essentially one-dimensional (linear). This structure of the fiber is the limit passage directed light radiation that is reflected in the fact that the passage of light radiation becomes possible, essentially in one direction only, namely, in the longitudinal direction of the core of the fiber.

Light pipe, made according to the invention, may involve the heart, which is essentially two-dimensional. This fiber known as the planar waveguide, which is due to the fact that in respect of such fiber applicable geometry plane. Planar waveguide restricts the passage of directed light radiation so that it is possible, basically, only in two-dimensional plane.

This light guide, the refractive index of the core which is greater than the largest index of refraction of the environment, capable of ensuring the passage of light radiation through total internal reflection. The presence of total internal reflection is in direct relation to magnitude of the angle of incidence on the surface, and the relationship between the refractive index of the core and the medium surrounding the core. To ensure receipt of full internal reflection at the interface of the core and the environment, it is necessary that the refractive index of the environment of the heart, does not exceed the value of the refractive index of the core.

Touch the fiber can be used to detect changes in the refractive index of the environment that surrounds the fiber. In this case, the touch fiber is used to measure the changes that are related to the refractive index of the medium surrounding the fiber, and the presence of these changes attributable to changes in values of the critical angle at the interface of the touch surface and above environment. On the value of the critical angle can influence only those changes that take place in the environment surrounding the fiber, that is, the changes that take place within nerasprostraneniya fields pertaining to a possible total internal reflection. Nerasprostraneniya field is limited penetration depth of the border section, and the limits set by the depth of penetration, the interaction with the field can not be detected.

The device, made according to the invention, can be performed with the ability to detect changes related to the properties of light radiation arriving at the detector array. Thus, it can be ignored static coverage, regardless of whether these coatings caused intentionally, for example, at the time of manufacture of the device, or these coatings were deposited by accident (such coatings are various pollution).

The encoding of a point of contact that matches this invention can be combined with the method, which includes the entry of the respective period of time. As an alternative or addition may be made to the definition of the values of such additional settings related to the object as speed, acceleration, angle, etc.

Item redirect light radiation may reject the light beam is partially mainly or solely through total internal reflection. As an alternative or Supplement deviation of a light beam element redirect light emission can be achieved by reflections, with these aims can be applied one boundary formed by the use of metal or some such section boundaries. In addition, as an alternative or Supplement deviation of a light beam element redirect light emission can be achieved by refraction, with these aims can be applied one curved surface, providing refraction, or several of these surfaces. Mainly, the deviation of a light beam element redirect light radiation is in the direction of the passage in the plane that is parallel to touch the light (for example, in the plane that is parallel to the touch surface).

As shown in Figure 5, 20, 23 to 25 and 34, when light passes from the first/third element redirect light radiation to the detector matrix, light radiation, mainly, converges in the direction of this matrix. Thus, the size of the detector matrix may be significantly less than the size of the first/third element redirect light radiation, which means that the size of the detector matrix can be significantly less than the length/width touch surface.

As applied to the device, made according to the invention, you can make changes to the settings, it is possible to carry out the calibration. The purpose of calibration or change settings may be to change the sensitivity of the touch fiber to objects with different values of dielectric permittivity. As an alternative or Supplement you can bring such a calibration or changing the settings, the result of which the refractive index of the device should not be taken. This calibration can be carried out, for example through changes resulting angle of incidence or the range within which are the angles of incidence of light rays passing inside the sensor device of some surfaces, which may be a touch surface.

The fiber according to the invention, includes, mainly, the dielectric material. The core of the specified fiber can include glass, plastic material, photonic crystal semiconductor or any other material one or more of the optical characteristics of which are similar optical characteristics of these materials. As an alternative, the fiber can include any combination of these materials. As glass can be used kroons related, for example, to type VK. As the plastic material can be used acrylic glass (polymethylmethacrylate), polystyrene, polycarbonate etc For the manufacture of the shell or the coating may be applied to such materials.

The advantage of the device is made according to the given invention is the fact that this product may include the fiber, which can work with an object with a specific shape. These objects include objects with sharp end, and some objects may make violations light passing inside the device, and other objects can not do that.

Preferably, the fiber has a regular shape. However, the fiber can be curved. One surface of the fiber or the majority of them are essentially flat. As an alternative or addition is the fact that one of the boundary of fiber or more of their number are essentially flat.

The fiber under this invention may include one or more transparent glass plates.

The fiber can have a floor or a shell, including metal. As an alternative or addition can serve the fact that the fiber can have coverage or shell that includes the dielectric with a low refractive index, such as, for example, fluoro-polymer teflonž. Randomly selected floor or the shell can cover at least part of the optical fiber or, in essence, only the main part of the fiber. Mainly, the refractive index randomly selected coverage or shell does not exceed the value of the refractive index of the core question of the fibre. In addition, the coating can function as a layer that attempts to separate from each other two optical fibers or more of their number. The layer may be a layer that does not light radiation

Touch the surface of the touch fiber, made according to the invention, can be essentially flat. As an alternative or addition to, any other, the surface of any fiber, made according to the invention, can be essentially flat. As an alternative or addition to, the surface of the fiber, made according to the present invention may be distorted or may have twisted(s) sector(s). The touch surface may include a certain number of separate sites. At the touch surface, or area(s) touch the surface can be applied optical coating, which, for example, anti-reflective coating. Randomly selected optical coating can be approved for mutual coordination of the refractive index of the object to the refractive index of touch fiber, that is to fit the object in relation to the core of the fiber, or to put on the fiber surface.

The touch surface can have, essentially, a rectangular shape, a shape in a circle or any other form.

The thickness of the waveguide, which can range from 0.01 mm to 10 mm, is in the range from 0.2 mm to 1 mm Length of the fiber, which can be from 1 cm to 200 cm ranges from 1 cm to 50 cm, or in the range from 2 cm to 10 cm of the Width of the waveguide, which can be from 1 cm to 200 cm ranges from 1 cm to 50 cm, or in the range from 2 cm to 10 cm

Item redirect light radiation may include one segment or more segments, which are used for the deviation, reflection, refraction, diffraction, focus, defocusing, the information in parallel beam, provision of divergence or convergence. In addition, the element redirect light radiation may include any combination of the above segments. The specified segment may include one member or more of the following elements: optical lattice, mirrors, lenses, prisms and diffraction elements. In addition, the segment may include any combination of these elements. From all or some of these elements can be removed chamfer, and all or some of the elements can be cut, can be convex, concave, etc. Item redirect light radiation may include materials with different refractive indices.

Item redirect light radiation or the surface of this element can include one segment or more of these segments, a cross-section of each of which, in substance, forms part of the parabola, the projected onto the plane of the fiber or on another plane. The focus point of the segments are referring to one and the same element redirect light radiation and forming part of the parabola, may be, essentially, in the location of the source of light radiation detector or matrix. In addition, this point of focus can be basically in place projection source of light radiation detector or matrix on the plane fiber or on another plane, or the focus point can be located in a place projection source of light radiation, and in the place projection detector matrix on these planes. Thus, the form element redirect light radiation or the surface of this element may be similar, at least part of the cross-section surface of a Fresnel lens, as it is the part of the cross section, which runs along the radius of the circular Fresnel lens.

Item redirect light radiation may include one-dimensional parabolic reflector, that is, the specified element can include a three-dimensional structure, parabolic curvature which is one-dimensional.

At least, on the part of the element redirect light radiation can be coated. Randomly selected coverage may include metal. At least one part of the specified element can be covered with metal.

The source of light radiation may include at least one light-emitting diode, laser, diode laser or laser surface radiation vertical cavity. In addition, the source of light radiation may include any combination of these elements. In addition, this source may include at least one device installed on its surface. The source of light radiation can be a single source or set of sources. This can be considered as a point source that is connected with the fact that this source of light radiation can pass through the point aperture, another hole small size or the lens. In addition, to ensure the passage of light radiation can be used any combination of these elements. During use of the considered source of light radiation may come from him continuously. Preferably, the source emits pulses of light radiation.

Light radiation from a source of light radiation, can be launched or introduced into the light only on the condition that the angle of receipt of radiation in optical fibre clearly defined. This condition must be observed and if the angle of receipt of radiation in optical fibre lie within a specified range. For introducing light into the fiber used an optical system that can be included in touch device, made according to this invention. To enter light into the fiber can be used end face, and angle of receipt of light radiation lie within a certain range or radiation comes under several angles. Light radiation can be inferred from the fiber through the use of end faces. Light radiation from a source of light radiation, can be entered into the fiber so that it will be essentially parallel to the touch surface.

Light radiation from a source of light radiation, can be entered into the fiber through the use of devices, including optical fiber. Thus, the source of light radiation is able to get some distance from the area where the introduction of light radiation inside the fiber.

The source of light radiation can be installed directly before the light guide or the specified source can be an integral part of the fiber. The emission of light radiation used for this purpose, the source of the light that flows inside of another fiber, can be put in touch fiber, mainly through the use of a redirect light radiation. In addition, light radiation can be entered in one butt touch fiber of his other end. In the fiber can be entered in this light, which has a different corners of the passage regarding the touch surface. In addition, the fiber can be entered in this light, the corners of the passage which is relatively touch surfaces can vary within a single or multiple ranges of values. For introducing light into the fiber can be applied several sources.

As shown in figure 1, 3 to 7, 12, 17, 20, 21, 23-25, 30, 32 and 34, the size of the detector matrix, preferably, considerably smaller than the size of the touch surface. In addition, an important advantage of this invention is the fact that for encoding position one contact location or multiple locations touch, due to the presence of one or several objects, which made contact, you may need only one detector matrix.

Crystal matrix can be installed directly before the end of the fiber, or it may be an integral part of the fiber. Light radiation, supplied from the source of light radiation, can act on the detector array by using another fiber, mainly through the use of a redirect light radiation. In addition, the light may come on the detector array with the other end touch fiber. On the detector array can act so light that has various corners of the passage regarding the touch surface. In addition, this matrix can do this light, the corners of the passage which is relatively touch surfaces can vary within a single or multiple ranges of values. Crystal matrix can accept incoming radiation, regardless of the angle of incidence. Alternatively, the matrix can perceive only the light beam, angle of receipt of which are within one or more ranges.

In a preferred embodiment of the device of total internal reflection is used in order to ensure the passage of light radiation inside the fiber. If at least part of touch the surface of the object comes into contact with the object, the object may violate reflected in the point of contact. Making violations may be due to the fact that the value of the refractive index of the object are high enough to bring light radiation of the optical fiber at the point of contact. Making violations may be due to the fact that the object absorbs light within nerasprostraneniya fields, located at the point of contact. In addition, the introduction of violations may be due to the fact that the object scatters light within nerasprostraneniya fields, located at the point of contact. In addition, the introduction of violations may be due to the presence of several of the above factors. Making violations may result in a decrease of the light intensity of the radiation reflected from the contact point. This decrease of intensity can be identified at the point located on the surface detector of the matrix, which corresponds to the path of light radiation, which crosses the point of contact. In a preferred embodiment of the device given point of contact is crossed by at least two ways of passing light radiation, resulting in the decrease of intensity of detected at least two points crystal matrix.

In a preferred embodiment of the invention of the light coming from the light source radiation is entered in touch fiber so that at least part of the light beam forms a sort of angle with the sensor surface in which this part of light radiation becomes immune to the object in contact with the surface. Light radiation from a source of light radiation, which is incorporated in touch fiber, then flows into an undistorted on the touch light guide in the direction of the second element redirect light radiation. The second element redirect light radiation rejects the part of the light beam by using the touch of a light guide in the direction of the first element redirect light radiation.

In addition, the second element redirect light radiation can change the value of this angle that the light beam forms a touch surface as a result of its rejection second element redirect light radiation in the direction of the first element redirect light radiation. Due to a specified change in the value of the angle of the object, which can be a finger, can make violations, at least in part of the light beam. The first element redirect light radiation rejects the incoming light, and this element can change the size of this angle that the light beam forms a touch surface, so that this part of light radiation becomes immune to the object, the object in contact with the surface. Mainly, to make a breach in the light emission by a touch of the fiber, not in the state of the water object, in contact with the sensor surface.

Two or more optical fibers used in the device, made according to this invention can have essentially the same form, or each of these fibers can include one part or several parts that have essentially the same form. The form of two optical fibers or more of their number can, essentially, be a mirror image of each other. In addition, each of the above optical fibers used in the device, made according to the invention, may include, at least one part which is a mirror image of the relevant part of the other light conductor. As an alternative or Supplement can be shown by the fact that two of fiber or more of their number to be applied within the device, made according to the present invention may be identical to each other, they can take various forms.

Two or more optical fibers used in this device may include at least one material with the same characteristics. As an alternative or Supplement can be shown by the fact that two of fiber or more of their number, used in the device, made according to the invention, may include a variety of materials.

Two of fiber or more fibers can be connected to each other in various ways so that these fibers form a separate plate, which includes more than one core, more than one channel or grooves. In addition, it can be used any combination of these elements. Two of fiber or more of their number can represent a single whole.

For realization of predetermined actions corresponding to the signal from the detector matrix touchscreen device, made according to the invention, may include control device. This additional installed on the choice of the control device may be able to switch from one to the other state.

According to this invention, as the device of the signal processing can be applied to the microprocessor device of digital signal processing, Central processing unit or any other device that can be used for encoding position of the point of contact of the object with the touch surface of the device, made according to this invention. The device signal processing can be adapted to perform calculations in real time.

Touch the device, made according to the invention, may include one microstructure or more of their number in order to play the information intended for the user. The microstructure or several microstructures can reproduce the information for the user, by means of deviations allocated to it/them light radiation. The microstructure or several microstructures can include any number or any combination of the diffraction elements, or holographic elements. One microstructure or several microstructures can be United into a single whole, can be combined or reciprocally connected to the light conductor, such as, for example, by locating the fiber on their surface. The microstructure can be lit by light radiation emitted by the source of light. As an alternative or Supplement is the fact that the microstructure can be lit another source of light radiation or other sources of light. One source of light radiation or more of their number may cover several microstructures.

The microstructure can provide visualization button or similar item in order to ensure imaginary interaction with imaginary button that takes place at the contact object with a multi-touch surface.

Any fiber can be connected with any other fiber or any other fibers, and the connection can be made, for example, by combining into a single unit, by combining, code in the stack or mutual connection. In addition, there may be any combination of these methods.

Any item redirect light radiation can be connected with any other element redirect light radiation or any other elements redirect light radiation, and the connection can be made, for example, by combining into a single unit, by combining or mutual connection. In addition, there may be any combination of these methods.

Any item redirect light radiation can be connected with any fiber or with any optical fibers, and the connection can be made, for example, by combining into a single unit, by combining or mutual connection. In addition, there may be any combination of these methods.

The source of light radiation can be connected with any element redirect light radiation or with any elements redirect light radiation, and the connection can be made, for example, by combining into a single unit, by combining or mutual connection. In addition, there may be any combination of these methods.

Crystal matrix can be connected with any fiber or with any optical fibers, and the connection can be made, for example, by combining into a single unit, by combining, code in the stack or mutual connection, or any combination thereof.

Crystal matrix can be connected with any element redirect light radiation or with any elements redirect light radiation, and the connection can be made, for example, by combining into a single unit, by combining or mutual connection, or any combination thereof.

Touch the device, made according to the invention, may find wide application. The device can be applied in the following products: touch pad; touch screen; in the computer, mobile phone, portable music player, the remote control and keyboard, in combination, any of the foregoing articles, as well as in any other portable device, or in any other deportation device. Touch the device, made according to the invention, can be installed in front of the display. Alternative or optional touchscreen device can be a part of the display. Alternative or optional touchscreen device, made according to the invention, may form display.

Touch the device according to the invention can be used in conjunction with one or more mechanical buttons, and some at least one button, made with the possibility of pressure on the touch surface according to this invention. This interaction can be applied, for example, in a computer, mobile phone, portable music player, the remote control or keyboard, and any other device that includes at least one button or in any combination of the above devices.

In a preferred embodiment of the invention in the heart of the process of coding point of contact of the object with the touch surface is the absence or weakening of light radiation reected from the contact point.

In one embodiment, the touch device according to the invention is intended for an object, the value of the refractive index which does not exceed the value of the refractive index of the surrounding environment. In another embodiment, the touch device according to the invention is intended for work with object whose characteristics are similar to the characteristics of the mirror.

Light radiation, which is converging upon receipt from the first element redirect light radiation, can start to go before it will arrive at the detector array, due, for example, installation of the detector matrix behind the focus point of light radiation coming from the first element redirect light radiation.

The subject of the invention

1. Touch the device (2), containing:

source (4) light emission for the emission of light radiation (6);

touch the light (8), made with the possibility of the direction of light radiation (6) from source (4) light radiation in the direction of the sensor surface (30) touch fiber (8) so that the object contributes violations, at least in part directed light radiation (6) at the point (32) contact object with a multi-touch surface (30);

the detector array (20), made with the possibility of detecting the intensity distribution of light radiation (6), held from source (4) light radiation via the touch fiber (8), for encoding position of point (32) contact object with a multi-touch surface (30);

the first element (14) redirect light radiation, made with the possibility of deviation of light radiation (6)elapsed from the source (4) light radiation via the touch fiber (8) and admitted to the first element (14) redirect light radiation in the direction of the detector array (20);

prevented from entering a specific point on the detector matrix (20)at least part of the light beam (6), passing in the direction of a certain point, located on the crystal matrix (20)when the object comes in contact with the sensor surface (30) in the relevant certain point (32) the contact.

2. Touch the device (2) according to claim 1, wherein the touch fiber (8) is a planar waveguide.

3. Touch the device (2) according to claim 1 or 2, which touch the light (8) in addition, made with the possibility of the direction of light radiation (6)that was forwarded to and kept in the direction of the detector array (20) the first element (14) redirect light radiation.

5. Touch device (202) according to item 4, in which the transmitting fiber (236) is a planar waveguide.

6. Touch the device according to paragraph 4 or paragraph 5, in which touch the light (208) and the first transmitting fiber (236) stacked in a pile.

7. Touch device (102) according to any of the preceding paragraphs, containing the second element (112) redirect light radiation, made with the possibility of redirecting light radiation (a), held from source (104) light radiation through touch the light (108), which is made with the possibility of sending at least part redirected light radiation (106b) in the direction of the first element (114) redirect light radiation, which is made with the possibility of redirecting and information at least part of the incoming light radiation (106b) in the direction of the detector array (120).

8. Touch device (102) according to paragraph 7, which touch the light (108) additionally made with the possibility of the direction of light radiation (a)from a source (104) light radiation in the direction of the second element (112) redirection light radiation, which is made redirected at least part of the incoming light radiation (a) back through touch the light (108), which is made with the possibility of sending at least part of the rejected light radiation (106b) in the direction of the first element (114) redirect light radiation, made with the possibility of redirecting and information at least part of the incoming light radiation (106b) in the direction of the detector array (120).

9. Touch device (202) according to paragraph 7, which depends on any of the paragraphs 4-6, in which the transmitting fiber (236) additionally made with the possibility of the direction of light radiation (a) from the source (204) light radiation in the direction of the second element (212) redirect light radiation, which is made redirected at least part of the incoming light radiation (a) via the touch fiber (208), which is made with the possibility of sending at least part redirected light radiation (206b) in the direction of the first element (214) redirect light radiation, which is made with the possibility of redirection and information at least part of the incoming light radiation (206b) in the direction of the detector array (220).

10. Touch device (302) according to paragraph 7, containing the second transmitting fiber (338), made with the possibility of the direction of light radiation (306) from the source (304) light radiation in the direction of the second element (312) redirect light radiation, which is made redirected at least part of the incoming light radiation (306) via the touch fiber (308), which is made with the possibility of sending, at least part redirected light radiation (306) in the direction of the first element (314) redirect light radiation, made with the possibility of redirecting and information at least part of the incoming light radiation (306) in the direction of the detector array (320).

11. Touch device (302) according to paragraph 10, in which the second transmitting fiber (338) is a planar waveguide.

12. Touch device (302) according to paragraph 10 or 11, which touch the light (308) and the second transmitting fiber (338) stacked in a pile.

13. Touch the device (2) under any of the preceding paragraphs, in which light radiation (6)emitted by the source (4) light radiation, then modulated.

14. Touch the device (2, 1502) under any of the preceding paragraphs, containing the device (1574) signal processing, made with the possibility of coding position of point (32) contact object with touch fiber (8).

15. Touch the device (2, 1502) according to 14, in which the device (1574) signal processing additionally arranged to calculate the area of a contact object with touch fiber (8).

16. Touch the device (2, 1502) under 14 or 15, in which the device (1574) signal processing additionally arranged to calculate the speed at which the object moves relative to the touch of the fiber (8).

17. Touch the device (2, 1502) under any of the paragraphs 14-16, in which the device (1574) signal processing advanced, made with the possibility of calculating the acceleration occurring between the object and touch fiber (8).

18. Touch device (102) according to any of the preceding paragraphs, in which at least part of the touch surface (130) contains optical coating (131).

19. Touch device (102) according p, in which optical coating (131) is an antireflection coating.

20. Touch the device (2) under any of the preceding paragraphs, in which light radiation (6)from a source (4) light radiation and directed touch fiber (8)has such an angle relative to the touch surface (30), in which the light (6) not being a violation of water in contact with the sensor surface (30).

21. Touch the device (2) under any of the preceding paragraphs, in which light radiation (6)from a source (4) light radiation and directed touch fiber (8)has such an angle relative to the touch surface (30), in which the light (6) not being a violation by the material in contact with the sensor surface (30), this material has a lower index of refraction than the object, for example, about 5 percent less.

22. Touch the device (2) under any of the preceding paragraphs, in which the first element (14) redirect light radiation contains at least one reflecting part (16).

23. Touch the device (2) under any of the preceding paragraphs, in which the first element (14) redirect light radiation contains at least one element (14) with facet.

24. Touch the device (2) under any of the preceding paragraphs, in which the first element (14) redirect light radiation contains at least one concave item (16).

25. Touch device (102) according to any of the preceding paragraphs, in which the first element (114) redirect light radiation contains at least one beveled element (116).

26. Touch the device (2) according to any of PP-25, in which at least one member is a mirror.

27. Touch the device (2) under any of the preceding paragraphs, in which the first element (14) redirect light radiation contains at least one diffraction grating.

28. Touch device (202) under any of the preceding paragraphs, in which the light (208) contains a layer (244), the value of the refractive index of which is less than the respective value of the core of the fiber (208).

29. Touch device (202) according p, in which the layer (244) contains fluoropolymer.

30. Touch device (1302) under any of the preceding paragraphs, containing at least one microstructure (1364)to provide redirection light radiation through the touch-sensitive surface (30) to provide information to the user (1370).

31. Touch device (1302) according to article 30, in which at least one microstructure (1364) built-in optical fiber (1366), which is located behind the touch of the fiber (8), resulting in light radiation, perenapravlenie at least one microstructure, passes through touch the light and enters through the touch surface to provide information to the user (1370).

32. Touch device (102) according to any of the preceding paragraphs, in which the first element (114) redirect light radiation contains reflecting surface (116), forming touch surface (130) angle, the value of which lies within 60-89 degree or within 70-86°, or approximately 81 degrees.

33. Touch device (1602) under any of the paragraphs 4-32, in which the transmitting fiber contains several essentially one-dimensional fibre (1676) for guiding light radiation in the longitudinal direction within each of the core.

34. Touch device (1702) under any of the preceding paragraphs, in which touch the light conductor has essentially flat geometry with built grooves or channels (1778) to direct the light beam.

35. Touch device (1702) under the preceding paragraph, in which at least some of the built-in channels or grooves (1778) for guiding light radiation intersect each other.

36. Touch device (1702) under the preceding paragraph, in which the channels or grooves (1778) for guiding light radiation intersect each other, essentially, the right angle.

37. The encoding of an object's position in contact with the sensor surface (30), and this method contains the following stages:

the emission of light radiation (6) istochnikom (4) light radiation;

direction of light radiation (6) from the source (4) light radiation to touch the surface (30) touch fiber (8), using the touch of the fiber (8), so that the object contributes violations, at least in part conducted by light radiation (6) at the point (32) contact object with a multi-touch surface (30);

the discovery, by a detector array (20), distribution of the intensity of light radiation (6), held from source (4) light radiation via the touch fiber (8), for encoding position of point (32) contact object with a multi-touch surface (30);

redirection of light radiation (6), held from source (4) light radiation via the touch fiber (8) on the first item (14) redirect light radiation in the direction crystal matrix (20)using the first element (14) redirect light radiation;

thus prevented from entering a specific point on the detector matrix (20)at least part of the light beam (6), passing in the direction of a certain point, located on the crystal matrix (20)when the object comes in contact with the sensor surface (30) in the relevant specific point of contact (32).

1. Touch device containing: the source of the light emission for the emission of light radiation; touch fiber, made with the possibility of a direction of light from the light source radiation in the direction of the touch the touch surface of the fiber so that at least part of directed light radiation can be made distortion object at the point of contact of the object with the touch surface; the detector array is made with the possibility of detecting the intensity distribution of the light radiation transmitted from the source light radiation through touch the light, for encoding position of the point of contact of the object with the touch surface; the first element redirect light radiation, made with the possibility of redirecting the light of radiation transmitted from the source of light radiation via the touch light guide and transferred to the first element redirect light radiation in the direction of the detector matrix, and redirect light radiation causes a change in the direction of passage in a plane parallel to the touch surface; the first element redirection performed with the possibility of changing at least part of directed light radiation between the one made distortions, and one in which prevented the introduction of distortion when the object comes in contact with the sensor surface in the relevant specific point of contact, which prevents the admission to a point located on the crystal matrix at least part of the light rays passing towards a certain point, located on the crystal matrix.

2. Touch the device according to claim 1, wherein the touch fiber is a planar waveguide.

3. Touch the device according to claim 1 or 2, which touch the light additionally made with the possibility of the direction of light radiation that was forwarded to and kept in the direction of the detector matrix first element redirect light radiation.

4. Touch the device according to claim 1 or 2, containing the first transmitting fiber, made with the possibility of the direction of light radiation that was forwarded to and kept in the direction of the detector matrix first element redirect light radiation.

5. Touch the device according to claim 4, in which the transmitting fiber is a planar waveguide.

6. Touch the device according to paragraph 4 or paragraph 5, in which touch the fiber and the first transmitting fiber stacked in a pile.

7. Touch the device according to any of the preceding paragraphs, containing the second element redirect light radiation, made with the possibility of redirecting the light of radiation transmitted from the source of light radiation via the touch fiber, which is made with the possibility of sending at least part redirected light radiation in the direction of the first element redirect light radiation, which is made with the possibility of redirecting and information at least part of the incoming light radiation in the direction of the detector matrix.

8. Touch the device according to paragraph 7, which touch the light additionally made with the possibility of the direction of light radiation from a source of light radiation in the direction of the second element redirect light radiation, which is made redirected at least part of the incoming light radiation back through touch fiber, which is made with the possibility of sending at least part redirected light radiation in the direction of the first element redirect light radiation, made with the possibility of redirecting and information, at least part of the incoming light radiation in the direction of the detector matrix.

9. Touch the device according to claim 7, which depends on any of the claims 4-6, in which the transmitting fiber additionally made with the possibility of a direction of light from the light source radiation in the direction of the second element redirect light radiation, which is made redirected at least part of the incoming light beam through touch fiber, which is made with the possibility of sending at least part redirected light radiation in the direction of the first element redirect light radiation, which is made with the possibility of redirecting and information at least part of the incoming light radiation in the direction of the detector matrix.

11. Touch the device according to claim 10, in which the second transmitting fiber is a planar waveguide.

12. Touch the device according to claim 10 or 11, which touch the fiber and the second transmitting fiber stacked in a pile.

13. Touch the device according to any of the preceding paragraphs, in which light energy emitted from a source of light radiation, then modulated.

14. Touch the device according to any of the preceding paragraphs, containing the device signal processing, made with the possibility of coding point of contact of the object with touch fiber.

15. Touch the device according to 14, in which the device signal processing additionally arranged to calculate the area of a contact object with touch fiber.

16. Touch the device under 14 or 15, in which the device signal processing additionally arranged to calculate the speed at which the object moves relative to touch the light guide.

17. Touch the device according to any of PP-16, in which the device signal processing advanced, made with the possibility of calculating the acceleration occurring between the object and touch the light guide.

18. Touch the device according to any of the preceding paragraphs, in which at least part of the touch surface contains optical coating.

19. Touch the device according p, in which optical coating is an antireflection coating.

20. Touch the device according to any of the preceding paragraphs, in which light from a source of light radiation and direct touch with the fiber has such an angle relative to the touch surface at which light is not made distortion water in contact with the sensor surface.

21. Touch the device according to any of the preceding paragraphs, in which light from a source of light radiation and direct touch with the fiber has such an angle relative to the touch surface at which light is not made distortion material in contact with the sensor surface in which the material has a lower index of refraction than the object, for example, about 5 percent less.

22. Touch the device according to any of the preceding paragraphs, in which the first element redirect light radiation contains at least one reflecting part.

23. Touch the device according to any of the preceding paragraphs, in which the first element redirect light radiation contains at least one element with facet.

24. Touch the device according to any of the preceding paragraphs, in which the first element redirect light radiation contains at least one concave element.

25. Touch the device according to any of the preceding paragraphs, in which the first element redirect light radiation contains at least one beveled element.

26. Touch the device according to any of PP-25, in which at least one member is a mirror.

27. Touch the device according to any of the preceding paragraphs, in which the first element redirect light radiation contains at least one diffraction grating.

28. Touch the device according to any of the preceding paragraphs, in which the optical fiber contains a layer, the value of the refractive index of which is less than the respective value of the core of the fiber.

29. Touch the device according p, in which the layer contains fluoropolymer.

30. Touch the device according to any of the preceding paragraphs, containing at least one microstructure provide redirection light radiation through the touch surface to provide information to the user.

31. Touch the device according to article 30, in which at least one microstructure built into the fiber, which is located behind the touch of a light guide, resulting in light radiation, forwarded at least one microstructure, passes through touch the light and enters through the touch surface to provide information to the user.

32. Touch the device according to any of the preceding paragraphs, in which the first element redirect light radiation contains reflecting surface, forming touch surface angle, the value of which lies within 60-89 degree or within 70-86°, or approximately 81 degrees.

33. Touch the device according to any of claims 4-32, in which the transmitting fiber contains several essentially one-dimensional hearts for direction of light radiation in the longitudinal direction within each of the one-dimensional fibre.

34. Touch the device according to any of the preceding paragraphs, in which touch the light conductor has essentially flat geometry with built grooves or channels for the direction of the light beam.

35. Touch device under the preceding paragraph, in which at least some of the built-in channels or grooves for the direction of the light rays intersect each other.

36. Touch device under the preceding paragraph, in which the channels or ditches for direction of light radiation intersect each other, essentially, the right angle.

37. The encoding of an object's position in contact with the sensor surface, and this method contains the following stages: the emission of light radiation source of light radiation; a direction of light from the source of light radiation to touch the surface of the touch of a light guide, using the touch of a light guide, so that at least part of directed light radiation can be made distortion object at the point of contact of the object with touch surfaces; detection, through the crystal matrix, intensity distribution of the light radiation transmitted from the source of light radiation through touch the light, for encoding position of the point of contact of the object with the touch surface; and redirection of light radiation transmitted from the source of light radiation via the touch light guide and transferred to the first element redirect light radiation in the direction of the detector matrix using the first item redirect light radiation so that redirected light radiation changes the direction of passage in a plane parallel to the touch surface; this prevents the admission to a point located on the crystal matrix at least part of the light rays passing towards a certain point, located on the crystal matrix, when the object comes in contact with the sensor surface in the relevant specific point of contact; and when this element redirect made so that at least part directed light radiation after forwarding element redirection varies between one in which prevented the introduction of distortion, and the one made distortion object at the point of contact.