Lighting device with several light sources and one reflecting system and reflector unit

FIELD: physics.

SUBSTANCE: lighting device (1) includes several lighting sources (4) and one reflecting system, meanwhile the lighting sources (4) are located in front of the reflecting surface of the reflecting system and includes several lighting devices, located around an output hole (10) of the reflecting system. The light beam from the lighting sources (4) due to reflection is deflected towards the reference direction of radiation of the lighting device (1) by means of the reflecting system. The lighting device is fitted with the first reflecting section (2) and the convex second reflecting section (5), the first and second reflecting sections are matched to each other so that the basic light ray can be formed due to that the light from the lighting sources (4) first at first strikes the second reflecting section (5), and then the first reflecting section (2) and leaves from the lighting device towards the reference direction of radiation.

EFFECT: increasing power.

26 cl, 13 dwg

 

The LEVEL of TECHNOLOGY

Lamps, including several artificial light sources, for example, depending on the type of the applied light sources, suitable for a variety of applications. The use of lamps, provided with, for example, light emitting diodes (LED) or led light sources because of the relatively low power LEDs is limited to applications that do not require high or maximum capacity of the lighting installations. Lamps with light sources low power, are used, for example, for background lighting, led walls, flashlights, bike lights or lamps for reading or, respectively, decorative radiators, in particular when they are provided by a small number of led light sources. Typically, these lamps have a reflective device or, respectively, the reflective system.

Also known in the form of emitters lamps, which include multiple led light sources are arranged, in particular, in one plane. Such surface emitters directly highlight, for example, some surface or, respectively, can also alter its color, in this surface light is created without clearly defined boundaries.

OBJECTIVE AND advantages of the INVENTION

The present invention is to improve the lighting device, which includes multiple light sources and the reflective system, so as to improve the power characteristic of this lighting device.

This task will be solved with the help of p. 1, 10, 18 and 26 of the claims.

Preferred refinements of the invention are presented in the dependent claims.

The invention proceeds from the lighting device, which includes multiple light sources and the reflective system in which the light sources are located in front of a reflective surface of the reflective system, the radiation direction of the light beam of the light sources passes against the main direction of radiation of the lighting device and the light beam of the light source due to reflection deviates in the main radiation direction of the lighting device by the reflective system.

The essence of the invention lies in the fact that there is a first reflective area and that has made convex second reflective area, which relative to the first reflective area is located within and at least partially covered by the first reflective section, while the first and W is Roy reflective areas are coordinated with each other so the main light beam can be created due to the fact that the light from the first light sources falls on the second convex conical or substantially conical reflective section, and from there is reflected on the first reflective area, and after repeated reflection emerges from the reflective system in the main radiation direction. Thus features of the lighting device, which includes multiple light sources, which provides relatively high power. In particular, the choice of the type of light sources is not limited to one or some, but you can use almost all known or, respectively, different types of light sources in the lighting device. In particular, the proposed invention, the lighting device can easily achieve the effect of lamp high power, even if the integrated light sources, which have optimal properties for high power radiation of the generated light. Range of light sources, preferably used for the proposed lamps high power, thus tremendously increasing. In particular, now may preferably the use of such light sources for maximum capacities of lighting systems, which are still not rassmatrivalis is because of the relatively poor power radiation. Using these light sources may, in addition, the use of other positive and for these reasons, still not used to the effects of the above-mentioned light sources, and the role played by economic and/or technical aspects. In General, this can be achieved particularly high potential for improvements.

Particularly preferably in this case, the light sources, which emit radiation with a fuzzy boundary region or, respectively, are not in any particular region of the light beam, in accordance with the invention makes it possible to obtain a light beam with a sharp edge or, respectively, concentrated character. In particular, the light source high power, characteristic radiation, which is generated until the territorial limits of the beam of strong light.

Thanks to a lighting device according to the invention proposes a light source which has a high light intensity. Reflective system mixes the rays of each light source and focuses these rays so that the impression of a single traditional light source.

Due to the convex of the second reflective section all or almost all created by the sources of light radiation is collected and thus is rejected at first the second reflective area, to use directed light beam to reach the maximum power of the light beam, which is generated in the main radiation direction. Of the lighting device does not go out or comes out only a small percentage of the light rays in the radiation direction different from the main direction of radiation.

Particularly preferably, the second reflective area has a depth or protruding convex size of approximately from 40% to 80% of the total depth of the first reflective section. The total depth of the first reflective area may be determined, for example, through its size, that is, the dimension from the front edge of the first reflective section to the most remote from the point at the base of the first reflective section in the main radiation direction. In special embodiments, the implementation of the lighting device of the second reflective area may have a depth or, respectively, the convex protruding amount equal to from approximately not less than 10% to approximately not more than 150% of the total depth of the first reflective section.

With the invention of the lighting device are prerequisites to ensure that it could be used, for example, spotlights high power in areas such as cinema, television, those who Tr lighting of stadiums or, respectively, so that it can be used for film, video, projectors, emitters outdoor lighting and vehicle headlights or, respectively, aircraft landing lights. When this optical effect on the generated light beam can be additionally provided with an auxiliary device, which is explained below.

The first reflective section is preferably tapered or, respectively, has a cross section of straight side surfaces, in particular in the form of a truncated cone or of a polygon in cross-section, orientation, reverse conical shape of the second reflective area. On the basis of the conical body, the geometrical configuration of the first and second reflective section relative to each other can be understood as a mirror reflection of the vertex of a cone or section with truncated apex of the cone from the surface of the cross-section or, respectively, by pivoting the top or truncated peaks at 180 angular degrees.

The invention relates, furthermore, to the lighting device, which includes multiple light sources and the reflective system in which the light sources are located in front of a reflective surface of the reflective system, the radiation direction of the light beam h is nicks light passes against the direction or in the direction of the main direction of radiation of the lighting device and the light beam of the light source due to reflection deviates in the main radiation direction the lighting device by the reflective system. Another significant aspect of the invention is that provides a first reflective section and that has a convex completed the second reflective area, which relative to the first reflective area is located within and at least partially covered by the first reflective section, while the first and second reflective sections aligned with each other so that the main light beam can be generated due to the fact that the light from the light source after reflection falls on the second convex reflective area, and from there is reflected on the first reflective area, and after reflection from it radiates from there. Convex second reflective section is, in particular, conical, round or polygonal cross-sectional shape. It can for example be in the form of a cone or truncated cone. In the cross-section of the second reflective area cone-shaped inclined side surfaces are

direct that promotes the formation of not divergent light beam. If the lateral surface of the second reflective area were not made conical or at least essentially conical, and would be, for example, curved or curved in cross-section, then this shall be directly opposed the desired effect clearly created a limited or accordingly, the concentrated light beam.

The generated light beam can create a high brightness with a sharp transition to the darker surrounding areas. In particular, are reduced to a minimum loss differences, so that creates a bright spot light. While exiting the lighting device, the light rays are oriented predominantly in parallel. Also, using reflective system possible concentration or focusing of light. To obtain the desired characteristics of the light beam can be furthermore provided by optical elements such as lenses and/or transmitting elements. In addition, the proposed invention the lighting device has a compact design.

One of the embodiments of the invention, in which the light coming from the first reflective area, exits the lighting device without further reflection, it is proposed that coming from the first reflective area light after further reflection coming from the reflective system in the main radiation direction. In accordance with this can, in particular, be implemented deviation or change direction, so that the radiation direction of the light beam from the light source passed in the direction of the main example is the case of radiation of the lighting device. Further reflection may, in particular, be carried out through concretely land located concentric to the optical axis or, respectively, the longitudinal axis of the lighting device. This concretely area may, for example, take the form of a shell or, respectively, of a funnel. Alternative concretely plot based on this form, may be made without the edge of the crater or, respectively, in the form of a conical ring, or, respectively, having a hole concentric with respect to the virtual tip of the funnel. This hole can be a hole for the exit of light from the reflective system, if, for example, the exhaust from contrariamente area light is again reflected and then passes through the hole.

In principle, the lighting device or its components may have an axisymmetric structure with the outer shape of structural elements, round in cross section. The lighting device may, however, also made with a closed polygonal cross-sectional shape or, respectively, to have a polygonal outer shape. Thereby, it is possible to get essentially conical second reflective area. Reflective areas, such as, for example, the internal and the first and second reflective areas can then have the individual related to each other reflective surface, that is, respectively, the reflective surface of the first reflective section with a reflective surface of the second reflective area can reflect the light rays at each other. Then consider the reflective surface of the second reflective section can be correlated with the corresponding reflective surface of the outer reflector, these light rays pass between these parts.

Preferred light sources include several lighting means, which are arranged around the outlet of the reflective system. Therefore, the lighting device can be made compact. It also very effectively provides the ability to hit almost all of the emitted light of each light source or, respectively, of each lighting directly, i.e. without intermediate reflection, the second reflective area. It is also easier is installing or removing a single light source and/or multiple light sources.

Preferred light sources include many of the same tools lighting. So maybe the received light with the desired properties corresponding to the properties of a certain type of lighting. In addition, practice is ichno use only one type of media coverage for multiple light sources, what, in particular, preferably in relation to supplies of lighting and their replacement occurring in practice regularly.

Still, in particular, professional spotlights indoor or outdoor lighting often have huge maintenance costs, as they, in particular, are mounted in an open area or, respectively, the service life of the built-in light sources often is only from 500 to 3000 hours. Thanks to the invention of the lighting device, or,accordingly, the light source high power in contrast to achieve the service life of the light sources, approximately 20,000 hours or more.

In principle, the proposed lighting device may use different types of light sources or means of lighting. So, may be implemented lighting unit that includes a lot of lighting, which contains such means of illumination, such as, for example, discharge lamps, incandescent lamps, white LEDs or multichip LEDs, which can create a variety of colors.

In particular, it is preferable that the light sources included several energy-saving lighting means, such as, for example, LEDs. The power light is inogo device through the use of energy-saving lighting means, such as, for example, light emitting diodes, can be significantly lower compared to other means of illumination.

In particular, in some applications, such as, for example, above, with the invention of the lighting device can be solved that problem, when you need a relatively large amount of energy or electric energy, and most of it is radiated in the form of heat from the illuminating device, and may not be used according to the intended purpose of obtaining light effect. Along with the disadvantage of high energy consumption, which is not involved in the creation of light, intense heat leads to other significant deficiencies or problems, depending on the respective application. Still to resolve this problem, try, for example, be integrated convection cooling or ventilation systems. Without countermeasures, the internal viability of projectors or projectors because of the significant heat generation caused by light rays, exposed to threats or, respectively, the said lamps would go down. Thanks to the invention the system can be completely or according to the government, at least for the most part to withdraw from the relevant additional devices or, respectively, the countermeasures.

No need up to now, for example, a high power projectors huge cost of cooling, while the inside can't get the cooling air and there is no need for filtering, so no need for filters or a clog filters may not lead to failure.

For the first time the respective lighting devices may be covered with new applications, without first required forced air cooling or other additional measures related to heat from the light sources. For outdoor applications it is particularly preferable, because

can be offered appropriate protective housing without having to perform in these blocks of holes for the fan, which are undesirable or, respectively, should be hidden or modified.

With the invention of the lighting device at a known conditions, for example, to completely abandon the use of fans, infrared filters or other additional measures, as a light beam or beam of the light source is not particularly heat is moved. In particular, can be preferably provided with a light source of high power. Preferably used light sources are, for example, near the outer side or, respectively, for example, in good heat conducting connection with the outer side of the housing of the lighting device. Due to this, the outside has a large surface for heat dissipation or cooling, for example, convection cooling of the light sources or, respectively, adjacent structural elements.

In addition, refusal of ventilation cooling is possible to avoid devices mud with cooling air. Thanks to a light beam of the light sources low power turns "cold" beam, allowing the use of other materials than hitherto. In particular, there is no need to use highly temperature-resistant materials, which makes the proposed system more economical.

There is still a high level of noise emitted from the cooling fan motion picture, television and theatrical lighting devices or, respectively, projectors can now be reduced to nearly zero.

Still used a lot of lighting devices or, respectively, spotlights, in which the source is of IKI apply light discharge lamps. These discharge lamps require, however, a certain time is changing before they reach their full brightness. In addition, after use, they must first cool down, so you can light them again, which can be problematic.

You can also avoid changing the color temperature, which are still common for lamps operated with discharge lamps. Because the invention of the lighting device or, respectively, the light source high power due to the automatic measurement and additional alignment can remain a constant color temperature.

If using alternative light sources and gas-discharge lamps are not used, it is possible to avoid the necessary high voltage ignition.

In particular, the use of led light sources, for example, led light sources with high power in the proposed invention the lighting device corresponding system can be ignited immediately and at any time when it is possible consumption full power of light. Additionally, you may absolutely dim light. Preferably, the led light sources can also be used in strobe mode. In addition, it is possible recruitment sources the Veta high power LEDs with different properties. In particular, preferably can be implemented theatrical spotlights with one color light emission with a temperature of 3000 degrees Kelvin or video projectors with a single color light emission with a temperature of 6000 degrees Kelvin or more.

It is preferable also that there is an additional device, which serves for influencing the light reflected in the main radiation direction. The effect of the light beam of the lighting device can be modified or, if necessary, depending on the requirements of the lighting device to be regulated. In particular, this can be, for example, devices to change the color or device acting on the beam, such as aperture, shutter, or, respectively, the change in focal length.

Preferably the auxiliary device includes an optical element.

In addition, it is proposed that the additional device includes a device that generates image.

If using lighting unit must provide the ability to change color, it can be done, for example, through the use of multi-color LEDs, led matrix, or by connecting the system changes the color of the white light source high power the property.

Can also be preferably implemented projection patterns, images, video and so on, since the proposed lighting device or, respectively, the light source high power creates a clear beam, and because of the slight heat in the beam created optimum conditions for a lighting available on the spot or inside ofor,accordingly, materials. These include, for example, liquid-crystal displays, Digital Light Processing Panels (DLP Panels) (panel with digital light processing), film or, respectively, deplanche or false mask or, respectively, the so-called Gobos (graphical optical blackout - graphic optical dimming).

In addition, with the help equip different way of lighting device without difficulty possible to implement different performance classes, which, in particular, depend on the number or, respectively, the power light sources such as LEDs.

It is also proposed that the second reflective area was provided with a recess, which is provided by other light sources and the third and fourth reflective area, which performed similarly to the first and second reflective area to reflect light from other light sources in the main radiation direction. So at a minimum space in the lighting ustroistvom to be placed second, identical system, superimposed on the first system of larger size, which, in particular, can further increase the value of the power of the lighting device with the additional light sources.

In one preferred modifications of the subject invention, the second reflective section is made in the form of a massive body, which has at least one boundary surface, for example, made in the shape of a prism of a geometric body of glass or polymer material.

Finally, it is preferable that the design of the lighting device was such that the outer dimensions of the lighting device was approximately 40 mm to several meters.

In one preferred modifications of the subject invention provides a guide reflective portion which directs light from the light sources on the convex of the second reflective area. Thus, light sources, taking into account their location and/or spatial orientation can be arranged in different ways. Light sources light falls accordingly, the first guide on the reflective area and from there projected on the convex of the second reflective area. Light light sources, depending on the type of the sending of the reflective area can always be directed to Stroitelny plot as desired. Guide the reflective area can join the open side or, respectively, facing toward the light source side of the first reflective section. In particular, the guide reflective area may be in the form of expansion relative to the funnel of the first reflective section. Guide the reflective area may be in the form of a separate section or as a single unit with the first reflective section.

In addition, it is preferable that had concretely plot, from which or through which the reflected light received from the first reflective section. So, you can change the direction of the light beam, in particular in the Central region of the reflective system or, respectively, in the direction of the optical axis. The reflected light beam from contrariamente plot may be, for example, more than 130 angular degrees.

In a system in which the radiation direction of the light beam of the light sources passes in the direction of the main direction of radiation of the lighting device, concretely parcel may be the last reflecting the constructive element of the reflective system, with the light coming from the first reflective area, reflected contractarianism plot basically is upravlenii radiation of the lighting device. In the area located inside of the second reflective section to output light formed thus scatter light can be provided by corresponding, for example, the Central hole. This hole its edge may additionally contribute to the resulting point light had clear boundaries.

Particularly preferably, if there are concretely plot and collecting reflective area such that the light coming from the first reflective section, fell on concretely plot and thence reflected on collecting reflective area, and he was directed in the main radiation direction. So you can almost completely avoid divergent fraction of the generated light beam in the main radiation direction.

Concretely plot and collecting reflective area can be, in particular, are concentric relative to the Central longitudinal axis or, respectively, the optical axis of the lighting device. Collecting reflective area is used for collecting light from contrariamente plot and reflections provided by the lighting device or, respectively, the effective main radiation direction, which goes against the direction of light emission from istochnikov. The distance between contractarianism plot and collecting reflective area may be comparable to the size guide reflective area in the longitudinal direction of the lighting device.

For systems in which the radiation direction of the light beam of the light sources passes in the direction of the main direction of radiation of the lighting device, provides concretely plot, which is usually made otherwise than concretely plot used in the system, in which the radiation direction of the light beam from the light source passes against the direction of the main direction of radiation of the lighting device.

The invention relates also to a reflective unit for a lighting device, which includes multiple light sources, which differs in that it provides a first reflective area, and that has made convex second reflective area, which relative to the first reflective area is located within and at least partially covered by the first reflective section, while the first and second reflective sections aligned with each other so that the main light beam can be created due to the fact that the light from the first light sources impinges on the convex second reflector of the first area, and from there is reflected on the first reflective area, and after repeated reflection emerges from the reflective system in the main radiation direction.

DESCRIPTION of FIGURES

Other advantages and features of the invention shown in one of the embodiments of the proposed invention the lighting device.

Separately shown:

Fig.1 is a perspective view of the proposed invention lamp high power without images of individual structural elements,

Fig. 2 is a view of the system shown in Fig.1, the arrow P1, as shown in Fig.1,

Fig. 3 - view of the system shown in Fig.1, the arrow P2, shown in Fig.1,

Fig. 4 is another perspective view of the system shown in Fig.1,

Fig. 5 is an enlarged detailed view of the outlined area As shown in Fig.1,

Fig. 6 is an enlarged detailed view of the outlined area In shown in Fig.4,

Fig.7 is an enlarged side view of the system shown in Fig.1,

Fig.8 and 9 is a variant of the reflective system proposed by the invention lamp high power schematic detail view from the side in cross section and in perspective

Fig.10 and 11 is another proposed invention the reflectivity on the species corresponding to Fig.8 and 9

Fig.12 and 13 is another reflective system proposed by the invention lamp high power, the main focus is the group of radiation, aimed in the direction of radiation of the light beam of the light sources on the species corresponding to Fig. 8 and 9.

In the figures similar parts of the various embodiments selected partly the same reference position.

The figures show examples of implementation of the present invention a lighting device made in the form of lamp 1 high power and is shown schematically, for the best image of the core structure of the lighting device structural elements of the lighting device is not shown.

Lamp 1 high power includes a first reflective section 2, the cooling element 3, the light sources 4, a conical second reflective area 5, and the optical elements 6, 7 and 8.

The light sources 4 are arranged in the form of LEDs or LED. In Fig.7 illustrates the possible or, respectively, an idealized one particular direction of the light beam 9, which includes sections 9a-9F, sample source 4A of the light. Source 4A of the light is made identical to the other light sources 4 and with the same orientation and distance to the reflective system, which includes the first reflection area 2 and the second reflective area 5. The light beam 9 impinges doing from source 4A of the light of the first conical second reflective area 5, what is the first section 9a of the light beam 9. From the second reflective section 5 of the light beam 9 is reflected, so that it is in accordance with section 9b inside falls on the first reflective section 2. As explained plot 9c, the light beam 9 is also reflected from the first reflective section 2, so that the light beam 9 is reflected in accordance with the main radiation direction and through the outlet 10, which koltseobrazno covered by the cooling element 3 or, respectively, the light sources 4 comes out. Then, the light beam 9 through the optical elements 6 and 7 several changes its direction or, respectively, here are a few expands outward in accordance with another part 9d. The light beam 9 falls on the additional optics or, respectively, the optical element 8, so it's beam 9 extending from the lamp 1 high power in accordance with section 9F.

Shown here as an example, the LEDs 4 of 24 form, respectively, the emitted light beam corresponding to the light beam 9, so that the overlay or, respectively, the amplified light beam occurs on the section 9F or, respectively, before the optical element 8. Each led 4 forms a set of parallel light rays, and in General can be implemented Maxim is supplemented flax power of the lighting system at the expense of the generated light beam or accordingly, the beam of rays with the formation of clear boundaries.

In all Fig.8-13, in contrast to the systems shown in Fig.1-7, respectively, there is a centering of the reflective portion 11. Other shows part of the lamp 1 high power include a first reflective section 2 and second conical reflective section 5. Also available parts such as the cooling element 3 with the outlet 10 and multiple light sources 4, and optionally available optical and/or transmitting structural elements in Fig.8-13 are not shown.

Guide the reflective portion 11 is formed in the direction not shown a cooling element, respectively, in the form of a cone-shaped widening section in the form of an annular band. The inner surface of the guide reflective portion 11 is made reflective. Guide the reflective portion 11 can without a gap or with a small gap adjacent its outer lateral surface under the flat fracture inside to the extended edges of the first reflective section 2. In addition, in Fig.8, 10 and 12, respectively, shown selected as an example of the direction of passage of the light beam 15, which is divided into different sections 15A-15C of the light beam or, respectively, other parts 15d-15j light beam.

Consequently, the light, the bound from the light sources, in accordance with section 15A of the first light beam reflected from the guide reflective portion 11 inside in accordance with 15b on the convex reflector or, respectively, the second reflective area 5, and thence, in accordance with 15 seconds on the first reflective section 2, and emitted therefrom, as shown, in accordance with section 15d of the light beam in Fig.8. This sequence of changes of direction or, respectively, the reflection of light occurs in all systems, shown in Fig.8-13, with specific moves rays spatial can pass various way. In accordance with Fig.8 the radiation of the light beam is performed from the first reflective section 2 concentrated or, respectively, fokusirovanie.

In accordance with Fig.10, 11 in contrast to the system shown in Fig.8, 9, not depicted between the light sources and directing the reflective portion 11 is provided with a Central hole 12A and having a tapered annular shape concretely section 12. Coming from the first reflective section 2 in accordance with section 15th of the light beam the light is again reflected from contrariamente section 12 in accordance with section 15f of the light beam and is discarded provided, in addition, collecting reflective section 13. The funnel is collecting reflective area 13 is located on the front open end of the second reflective area 5 and the sharp edge of the crater a few goes in the second reflective area 5. The second reflective section 5 for this, unlike the acute form of the funnel of the second reflective area 5 shown in Fig.8, 9, performed without the edge or, respectively, in the form of a truncated cone. Reflected from collecting reflective section 13 light emerges from the reflective system through the opening 12A in accordance with section 15d of the light beam, so that the reflective system or, respectively, of the lamp 1 high power goes out, prachodayat the beam of light rays, the light rays which at least practically oriented parallel to the longitudinal axis S (Fig.12) lamp 1 high power.

In Fig.12 and Fig.13 shows another structural modification of the system shown in Fig.10 and 11. However, here the main radiation direction is directed in the direction of radiation of the light rays of the light sources. When this is provided concentric with the longitudinal axis S of the lamp 1 high power funnel concretely section 14, which reflects the light coming from the first reflective section 2 in accordance with section 15h of the light beam, and through the hole 5A of the open front of the second reflective area 5 in accordance with section 15j of the light beam reflects him out. The waste is concentrated or focused light beam coming out of issuelink 1 high power parallel to the longitudinal axis S.

For additional influence on the light effect of the lamp 1 high power can be provided for transmitting or, respectively, the concentrating element. This can be, for example, narrow or oblong cylindrical body of the light guide material, which can, for example, greatly limit the expansion of the expanding light cone, for example, to bring the cone of light angle of the cone of illumination, equal to approximately 130 angular degrees, approximately 10 angular degrees. This can be achieved are clearly limited area of the image.

SPECIFICATION of ITEMS

1 Lamp high power

2, the First reflective area

3 Cooling

4 the light Source

4A, the light Source

5 the Second reflective area

5A Hole

6 Optical element

7 Optical element

8 Optical element

9 Light

9a-9F Plot of the ray of light

10 Outlet

11 Guide reflective area

12 Concretely plot

12A Hole

13 Collecting reflective area

14 Concretely plot

15 Light

15a-15j Plot of the ray of light

1. Lighting device (1) comprising several sources (4) light and the reflective system is mu while the sources (4) light located in front of a reflective surface of the reflective system, the radiation direction of the light beam (9) sources (4) light passes against the main direction of radiation of the lighting device (1) and the light beam (9) sources (4) light due to the reflection deviates in the main radiation direction of the lighting device (1) via the reflective system, wherein the provided first reflective section (2) and that has made second convex conical or substantially conical reflective section (5), which relative to the first reflective section (2) is located within and at least partially covered by the first reflective section (2), while the first and second reflective sections aligned with each other so that the main light beam is created due to the fact that the light sources (4) light first impinges on the convex of the second reflective section (5) and of said second reflective section (5) is reflected on the first reflective section (2), and after repeated reflection emerges from the reflective system in the main radiation direction, characterized in that whatsources (4) light include several lighting means, which are arranged around the outlet (10) reflect athelney system.

2. The lighting device according to p. 1, characterized in that the light coming from the first reflective section (5), after further reflection emerges from the reflective system in the main radiation direction.

3. The lighting device according to p. 1, characterized in that the springs (4) light include several identical means of illumination.

4. The lighting device according to p. 1, characterized in that the springs (4) light include several energy-saving lighting means, such as, for example, LEDs.

5. The lighting device according to p. 1, characterized in that there is an additional device (6, 7, 8), which serves for influencing the light reflected in the main radiation direction.

6. The lighting device according to p. 1, wherein the auxiliary device includes an optical element(6, 7, 8).

7. The lighting device according to p. 1, wherein the auxiliary device includes a device that generates image.

8. The lighting device according to p. 1, wherein the second reflective section is made in the form of a massive body, which has at least one boundary surface.

9. The lighting device according to p. 1, characterized in that the design of the lighting device such that the external dimensions of the lighting device is STV approximately from 40 mm to several meters.

10. The lighting device includes multiple light sources and the reflective system in which the light sources are located in front of a reflective surface of the reflective system, the radiation direction of the light beam (15) of the light sources passes in the direction of the main direction of radiation of the lighting device and the light beam (15) of the light source due to reflection deviates in the main radiation direction of the lighting device by the reflective system, characterized in that theprovided the first reflective section (2), and that has made convex second reflective section (5) , relative to the first reflective section (2) is located within and at least partially covered by the first reflective section (2), while the first and second reflective sections aligned with each other so that the main light beam is created due to the fact that the light from the light source after reflection from the guiding reflective area (11) falls into a convex second reflective section (5) and of said second reflective section (5) reflected on the first reflective section (2), and after reflection from the first reflective section (2) is adjudged to concretely plot (12,14), and through the hole (5 is, 12A) of the second reflective section (5) is reflected outward in the direction of passage of the light beam (15), characterized in that thesources (4) light include several lighting means, which are arranged around the outlet (10) of the reflective system.

11. The lighting device according to p. 10, characterized in that the springs (4) light include several identical means of illumination.

12. The lighting device according to p. 10, characterized in that thesources (4) light include several energy-saving lighting means, such as, for example, LEDs.

13. The lighting device according to p. 10, characterized in that there is an additional device (6, 7, 8), which serves for influencing the light reflected in the main radiation direction.

14. The lighting device according to p. 10, wherein the auxiliary device includes an optical element(6, 7, 8) .

15. The lighting device according to p. 10, wherein the auxiliary device includes a device that generates image.

16. The lighting device according to p. 10, wherein the second reflective section is made in the form of a massive body, which has at least one boundary surface.

17. The lighting device according to p. 10, characterized in that the design of the illuminator is the first device is what external dimensions of the lighting devices comprise from about 40 mm to several meters.

18. The lighting device includes multiple light sources and the reflective system in which the light sources are located in front of a reflective surface of the reflective system, the radiation direction of the light beam (15) of the light sources passes against the direction of the main direction of radiation of the lighting device and the light beam (15) of the light source due to reflection deviates in the main radiation direction of the lighting device by the reflective system, and provides a first reflective section (2) and has made convex second reflective section (5), relative to the first reflective section (2) located within and at least partially covered by the first reflective section (2), while the first and second reflective sections aligned with each other so that the main light beam is created due to the fact that the light from the light source after reflection from the guiding reflective area (11) falls into a convex second reflective section (5) and of said second reflective section (5) is reflected on the first reflective section (2), and after reflection from the first from gateleg plot (2) is radiated to the outside in the direction of passage (15) the light beam, notablewhatsources (4) light include several lighting means, which are arranged around the outlet (10) of the reflective system.

19. The lighting device according to p. 18, characterized in that the springs (4) light include several identical means of illumination.

20. The lighting device according to p. 18, characterized in that the springs (4) light include several energy-saving lighting means, such as, for example, LEDs.

21. The lighting device according to p. 18, characterized in that there is an additional device (6, 7, 8), which serves for influencing the light reflected in the main radiation direction.

22. The lighting device according to p. 18, wherein the auxiliary device includes an optical element(6, 7, 8).

23. The lighting device according to p. 18, wherein the auxiliary device includes a device that generates image.

24. The lighting device according to p. 18, characterized in,whatthe second reflective section is made in the form of a massive body, which has at least one boundary surface.

25. The lighting device according to p. 18, characterized in that the design of the lighting device such that the external dimensions of the lighting device are approximately the nutrient from 40 mm to several meters.

26. The reflective unit for a lighting device that includes multiple sources (4) light, characterized in that provided the first reflective section (2), and that has made convex second reflective section (5), relative to the first reflective section (2) is located within and at least partially covered by the first reflective section (2), while the first and second reflective sections aligned with each other so that the main light beam is created due to the fact that the light sources (4) light first enters a second convex reflective segment (5), and from there is reflected on the first reflective section (2), and after repeated reflection emerges from the reflective system in the main radiation direction, differentthe fact thatsources (4) light include several lighting means, which are arranged around the outlet (10) of the reflective system.



 

Same patents:

FIELD: physics.

SUBSTANCE: illuminating system has a plurality of light-emitting elements such as light-emitting diodes assembled into a matrix. One or more light-emitting elements lie in the central region of the matrix. The light-emitting elements in the central region have better performance such as brightness and/or efficiency compared to the remaining part of the light-emitting elements in the matrix. The second region lying outside the central region, i.e. further from the centre of the matrix, includes a group of light-emitting elements having better performance compared to any additional light-emitting elements in the matrix. The matrix may include additional regions further from the centre of the matrix which include light-emitting elements with lower performance. A collecting optical system having an optical axis is optically connected to the matrix in such a way that the optical axis lies approximately at the centre of the matrix.

EFFECT: improved efficiency of optical systems which include light-emitting diodes and light-emitting elements in general.

25 cl, 6 dwg

The invention relates to optical devices and can be used in photo - and lineobject, telescopes

The invention relates to the making, in particular to optical-mechanical devices for the concentration of energy sources of energy, and can be used in microscopes, telescopes, fotocamera

FIELD: physics, optics.

SUBSTANCE: invention relates to optical instrument-making and an optical beam splitter. The optical beam splitter is a composite dichroic prism and is made in form of several transparent prisms glued together. The transparent prisms have on one face at the gluing point a dichroic coating intended for reflecting different frequency components of incident radiation. The shape and mutual arrangement of the transparent prisms is selected based on the condition of intersection of glued planes at one point.

EFFECT: higher compactness of the structure.

3 dwg

FIELD: physics.

SUBSTANCE: printed article has a substrate, having an upper surface and a lower surface; a graphic image layer having a plurality of images printed on at least one surface of the substrate; and a plurality of polygonal lenses printed on at least one surface of the substrate above the graphic image layer. The polygonal lenses are colourless, magnifying convex lenses. The printed lenses have a height between 0.0001 and 0.005 inch, width between 0.0005 and 0.01 inch when viewed from above and distance between the lenses between 0.0005 and 0.01 inch.

EFFECT: high image definition.

7 cl, 11 dwg

FIELD: physics.

SUBSTANCE: apparatus for coherent laser beam combining includes a laser with a fibre amplifier and a system of splitters which splits the laser beam into N+1 optical channels, from which one reference channel and N amplifier channels are selected. The apparatus also has a piezoceramic phase modulator of the reference channel, a harmonic electric oscillation generator connected the phase modulator of the reference channel to form an electrical positive feedback and operating at natural resonance frequency of the piezoceramic modulator, N phase-shift piezoceramic elements of operating channels, a system for combining N laser beams, which includes N collimators of operating channels connected to the N phase-shift piezoceramic elements of operating channels. Furthermore, the apparatus has a collimator with a reference channel telescope, connected to the piezoceramic phase modulator of the reference channel, a divider plate, N photodetectors on which control optical signals of interference of the reference and operating channels fall, N synchronous detection units which include a key synchronous detector, the synchronisation input of which is connected to the harmonic electric oscillation generator and the signal input is connected to the output of the N-th control photodetector. The output of the key synchronous detector is connected to the N-th phase-shift piezoceramic element of the operating channel to form an electrical negative feedback.

EFFECT: faster operation of the system.

13 cl, 5 dwg

FIELD: physics.

SUBSTANCE: described is an artificial microoptic system and a protective device, which include a planar image formed from a matrix or a pattern of pictograms and a matrix of focusing elements; the system forms at least two different artificial images, owing to which one artificial image serves to regulate or control the degree of visibility of the other artificial image. In a typical form, the matrix of pictograms forms a planar artificial image, while interaction of the matrix of focusing elements with the matrix of pictograms forms a separate artificial enlarged image which serves to control the field of view of the planar image, thus serving to regulate or control the degree of visibility of the planar image. Therefore, the planar image visually emerges and disappears, or is turned on and off, depending on the viewing angle of the system.

EFFECT: improved system.

41 cl, 158 dwg

FIELD: physics.

SUBSTANCE: pulsed laser radiation source has at least one pulsed laser, an optical means for summation of radiation and a focusing system. The source further includes a driving generator whose output is connected to the input of the pulsed laser, and the output of the pulsed laser is optically connected in series to an optical switch, a matching unit, an optical delay means and the optical means for summation of radiation and then further with the focusing system, wherein the output of the driving generator is connected to the control input of the optical switch.

EFFECT: high output optical power of laser radiation pulses.

2 dwg

FIELD: physics.

SUBSTANCE: image display system includes an array of microstructured pictogram elements made for combined formation of an image or information, and structured coating material applied on at least part of the surface of a layer of microstructured pictograms. Observation or reading using a magnifying device is possible. The array of microstructured pictogram elements is embedded in a pictogram layer. Structuring of the coating material makes up a region where there is coating material and regions where there is no coating material. The artificial imaging system includes an array of focusing elements and an imaging system which includes an array of microstructured pictogram elements which is embedded in the pictogram layer. The array of focusing elements and the imaging system interact in order to form at least one artificial optical image. Structured coating material is used, which is applied on at least part of the surface of the microstructured pictogram layer. Structuring of the coating material makes up a region where there is coating material and regions where there is no coating material.

EFFECT: enabling open authentication of currency, documents, industrial articles and products, and visual magnification of industrial articles, products and packaging.

45 cl, 52 dwg

FIELD: physics, optics.

SUBSTANCE: apparatus includes a laser radiation splitter. The splitter splits polarised radiation from an external source into basic and reference radiation. Basic radiation is directed onto a second splitter where it is split into N channels and amplified by amplifiers in each channel. Part of the radiation is collected by a semitransparent mirror(s). A control beam is formed, compared with reference radiation and then converted to an electric signal. The control signal for phase adjustment modules is calculated based on the signal parameters using a computation unit. Phase adjustment is carried out using N phase adjustment modules lying after amplifiers which perform phase shift in each channel using cyclic control signals. The value of each control signal in each of the N channels is determined separately via summation of the signal which is determined from shift of interference fringes in the plane of the array of a multichannel photodetector with the signal determined from the results of measuring intensity of the resultant radiation. Beams of control and reference radiation fall on the multichannel photodetector at a small angle with respect to each other. Resultant radiation is obtained when all beams of control radiation are focused on a one-channel photodetector using a lens.

EFFECT: obtaining high-power monochromatic coherent radiation.

5 cl, 3 dwg

FIELD: medicine.

SUBSTANCE: group of inventions relates to medical equipment, namely, to laser probes and their combinations, applied in ophthalmology. Probe contains irradiating optic fibre for light beam irradiation, optic system, located on the irradiation side of irradiating optic fibre, and two or more receiving optic fibres, located opposite to irradiating optic fibre. Optic system contains diffractive surface. Light beam, irradiated by irradiating optic fibre, is diffracted into two or more diffracted light beams, focused in plane, parallel to diffraction surface. Receiving ends of each of two or more receiving optic fibres, are intended for reception of light beam, diffracted by optic system, are located in plane, parallel to diffraction surface. Another version of implementation is ophthalmologic laser probe, containing irradiating optic fibre and optic system, located on irradiation side of irradiating optic fibre. Optic system is made in the same way as in the previous version. Connection for laser probe contains case, optic system, located in case, first connecting link, located on one side of optic system; and second connecting link, located on the other side of optic system. Optic system contains diffraction surface, each of two or more diffracted light beams is focused in plane, parallel to said surface.

EFFECT: application of group of inventions will make it possible to reduce operation time due to probe construction which makes it possible to form multipoint laser beam.

27 cl, 16 dwg

FIELD: physics.

SUBSTANCE: protective coating has a layer of polymer material with shape memory, having a surface made of microlenses, where each microlens is associated with one of a plurality of images on the protective coating. The layer of polymer material with shape memory is sensitive to external stimulating effect, for example to temperature, a solvent or moisture, owing to transition from a first state in which the optical property of the microlens has a first value to a second state in which the optical property of the microlens has a second value. The microlenses have refracting surfaces which transmit light to positions in the protective coating, yielding a composite image from images formed on the protective coating when the layer of polymer material with shape memory is in one of a first or second state.

EFFECT: invention provides change in optical properties of the article as a result of the external effect.

9 cl, 19 dwg

FIELD: physics.

SUBSTANCE: disclosed microoptical systems for artificial magnification include a pictogram matrix; and a matrix of pictogram focusing elements (microlens); where the matrix of pictogram focusing elements and the pictogram matrix arranged relative each other in such a way that at least one artificially magnified image having a motion effect is provided. Each of the said pictogram matrices and matrices of pictogram focusing elements have their own separate design features, for example the matrix of pictogram focusing elements can have thickness less than 50 micrometres and/or the effective diametre of the base of pictogram focusing elements can be less than 50 micrometres.

EFFECT: possibility of using disclosed engineering solutions on objects for everyday use, which are subjected to multiple mechanical effects and deformations without breaking down and deterioration of characteristics of microoptical system for artificial magnification with provision for high magnification and obtaining a clear image of protective micro-structured elements.

103 cl, 33 dwg

FIELD: physics, optics.

SUBSTANCE: invention relates to laser optics. The apparatus for generating laser radiation (3) comprises homogenisers (1) configured to separately homogenise a plurality of partial beams (6) or a plurality of groups (7) of partial beams (6) of laser radiation (3) such that partial beams (6) or groups (7) thereof from the homogenisers (1) in the working plane (8) form a linear distribution (9, 19) of intensity with fronts (10) which abruptly fall at the ends. Means of closing (2) the partial beams (6) or groups (7) thereof are made and installed such that linear distribution (11, 20) of intensity is formed in the working plane (8), wherein the length of said distribution is greater than the length of each of the linear distributions (11, 20) of intensity of the partial beams (6) or groups (7) thereof. The closing means (2) include a lens array with a plurality of lenses (5). The following condition is satisfied for the lenses (5) of the lens array: 2·F·NA(50%)=M·P2, where M=1, 2, 3,…, F is the focal distance of each lens, P2 is the centre to centre distance between the lenses, NA(50%) is the numerical aperture of each of the lenses (5), defined by an angle at which intensity of light passing through the lenses (5) falls by half.

EFFECT: simple design.

18 cl, 9 dwg

FIELD: measurement equipment.

SUBSTANCE: invention relates to methods and devices for measurement of angles in machine building, and also to devices of spacecraft navigation. The method to increase resolving capacity of measurement of angular coordinates of a glowing reference point by values of signals and serial numbers of photosensitive elements arranged symmetrically with the specified angular pitch relative to a certain axis, consists in increased speed of signal variation by the angle of the specified photosensitive elements. The multi-element receiver of optical radiation consists from at least three photosensitive elements arranged symmetrically with the specified angular pitch relative to a certain axis, at the same time photosensitive elements have devices that increase speed of their signal variation by the angle.

EFFECT: provision of the possibility to increase resolving capacity of measurement of an angular coordinate of a glowing reference point.

3 cl, 7 dwg, 1 tbl

FIELD: physics.

SUBSTANCE: apparatus for detecting luminescence in a sample includes an optical system for illuminating a sample with a linear beam, having a light source (24), having an asymmetric intensity distribution, a beam shaper (30) which transforms the light beam from the light source into an intermediate astigmatic image, and an image forming system (L1, 26) for transforming the intermediate astigmatic image into a final astigmatic image. The beam shaper is arranged such that the beam at the output of the optical system is focused into a linear beam. The beam shaper (30) provides non-identical magnification in the lateral plane and in the transversal plane and comprises a toroidal input surface and a toroidal output surface, each having a finite radius of curvature and capable of making intensity distribution in the cone of light emitted by the light source more symmetrical.

EFFECT: reduced dimensions, high reliability of the device and simple design.

12 cl, 7 dwg

FIELD: physics.

SUBSTANCE: objective lens has a housing, a drive for rotating the housing about an axis, an objective lens mounted on a stand on two bearings, and three lenses, the first of which a negative spherical fixed lens which expands a parallel laser beam entering the objective lens, a second lens and a third lens which are positive and cylindrical with mutually perpendicular edges which define dimensions of the oval laser spot focused on a substrate independent of each other. The second lens controls the value of the larger axis of the oval spot during operation and the third fixed lens defines the value of the smaller axis of the oval spot through preliminary setting of the distance from the objective lens to the substrate. The objective lens has two mini-motors. One mini-motor provides the spatial position of the larger axis of the oval laser spot at a tangent to outline of the cut component and the second mini-motor varies the length of that axis during processing by moving the second lens along the optical axis of the objective lens.

EFFECT: controlling the shape of the spot of focused laser beam during operation.

3 dwg

FIELD: physics.

SUBSTANCE: method of varying neck diameter of an output laser beam at a fixed distance from the laser is realised by a device having a laser which emits a beam with neck diameter 2hp1 and a confocality parameter zk1, a two-component optical system which forms, in the initial position of components, an output neck with diameter 2hp20' at a distance L0 from the laser, each component of the optical system being capable of moving along an optical axis. Matched displacement of components is carried out along the optical axis according to the law s2(s1)=a·y(s1)-Δ0+s1, where: s1 and s2 are displacements of the first and second components of the optical system; a=f1'2/zk1; Δ0 is the distance between the rear focus F2 of the first component and the front focus F2 of the second component in the initial position. Parameter y is determined by solving the cubic equation a2(x2+1)y3+a[2axb(x2+1)]y2+[a(a2bx)+f2'2(x2+1)]y+xf2'2ab=0, where x=zp10s1zk1;b=zp20'+Δ0s1; zp10 is the position of the neck of the input beam relative the front focus F1 of the first component in the initial position; zp20' is the position of the output neck relative the rear focus F2' of the second component in the initial position; f1' and f2' are the back focal distances of the components.

EFFECT: enabling formation of a laser beam with a variable neck diameter at a fixed distance from the laser.

4 dwg

FIELD: physics.

SUBSTANCE: collimating optical system has a lens and two rectangular prisms arranged in series on a beam path. The edges of the refracting dihedral angles of the prisms are directed perpendicular to the plane of the semiconductor junction. The refracting angles of the prism are the same and are selected in the range of 20…42°, α is the angle of incidence of radiation beams on the prism and β is the refracting angles of the prism, selected based on the relationship: where n is the refraction index of the material of the prism. The focal distance of the lens F is selected based on the relationship where φ is the required radiation divergence; a|| is the size of the emitting region of the semiconductor laser in a plane which is parallel to the plane of the semiconductor junction.

EFFECT: reduced size of optical-electronic devices using semiconductor laser radiation while preserving quality.

5 dwg

FIELD: physics.

SUBSTANCE: matching laser optical system is configured to ensure constancy of the size and position of the output waist during variation of the size of the input waist and comprises a laser, the beam of which, with a confocal parameter Zk, has an initial waist with radius varying in the range [hp,min; hp,max] with nominal value hp0, as well as an optical system consisting of first and second mobile components configured to form in the plane of the irradiated object, the output waist of the laser beam with constant size hp and at a constant distance L from the initial waist.

EFFECT: ensuring constant size and position of the output waist relative the initial waist.

5 dwg

FIELD: physics, optics.

SUBSTANCE: method involves formation of an initial converging laser beam and converting it to a beam with polarisation mode distributed on the aperture using a birefringent element, polarisation filtering of the beam with a polariser, adjustment of the spatial profile of intensity of the beam by rotating the birefringent element, or the polarisation vector of the initial converging beam, or polariser. The birefringent element is a birefringent plate lying between telescopic lenses and enables creation of a non-identical angle between the axis of the birefringent plane and the wave vector of an extraordinary ray for identical angles of deviation of the rays from the axis of the beam, which enables formation of a parabolic spatial profile of intensity after polarisation filtering, identical in one of the planes along the direction of propagation and all planes parallel to the said plane on the entire aperture of the beam.

EFFECT: formation of a laser beam with a parabolic spatial profile of intensity with controlled level of intensity of radiation at the centre of the parabola, as well as controlled position of the parabola on the aperture of the beam.

3 dwg

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