Built-in lighting unit

FIELD: electricity.

SUBSTANCE: invention relates to lighting engineering. The built-in lighting unit (1A, 1B, 1C, 1D, 1E) comprises optical arrangement (2, 3), the first light source (S1) to generate the first light beam (L1), the first collimator (C1) to guide the first light beam (L1) to the optical arrangement (2, 3); the second light source (S2) to generate the second light beam (L2), the second collimator (C2) to guide the second light beam (L2) to the optical arrangement (2, 3); at that the optical arrangement is realised so that it may manipulate the first and second light beams (L1, L2) generating the first outgoing light beam (BLO) and the second outgoing light beam (BHI) so that the first outgoing light beam (BLO) and the second outgoing light beam (BHI) are joined partially in overlay area (44) in projection plane (4) placed at a preset distance from the built-in lighting unit (1A, 1B, 1C, 1D, 1E). The invention also describes an automobile head lamp unit (12) that contains the built-in lighting unit (1A, 1B, 1C, 1D, 1E).

EFFECT: increased lighting efficiency of low-beam and high-beam light and increased safety for a driver.

13 cl, 10 dwg

 

The technical field to which the invention relates

The invention relates to recessed lighting node and automotive Farny device.

Characteristic of prior art

In lighting assemblies used, for example, in automotive applications, the specific requirement is that the line "cutoff" light issued by the lighting node, between light and dark areas must meet certain standards. In addition, this line is the cutoff between light and dark areas should be adjustable. The entire beam of light issued by the lighting node, needs to be adjustable, for example, to create a dim light to illuminate the area directly in front of the vehicle and the high beam for extending the illuminated area. In some situations, such as cornering is also desirable adaptability issued light to the area on the turn was better lit, resulting in a safety. In addition, it may be advantageous influence on the amount of light in the foreground of the pattern, i.e., the area of the beam closest to the vehicle, depending on traffic conditions and/or terrain, weather conditions, etc.

Dipped beam and main beam, usually generated from using�individual light sources in two separate lighting fixtures. When using ordinary incandescent light bulbs, in the General case, install two lights in close proximity to the main unit and attach these devices are configured such that the high beam and low beam correctly projected in relevant field in front of the vehicle. Although the optical system of the headlights don't really use "depicting" the optics, usually one edge of the source or the edge of the security element "portrayed" to get the required cutoff for the expansion of the beam. The quality of the rays of light must satisfy certain requirements. For example, the shape or contours of the rays of light that should be projected on a vertical transverse plane located at a standard distance from the headlamp, comprising, for example, 25 meters, covered by national and international technical requirements, such as standard ECE R112 (European economic Commission).

Lighting devices or lighting nodes that use semiconductor light sources, such as crystals with light-emitting diodes (LEDs), are becoming more popular as advances in technology have led to economical, but still very bright semiconductor light sources. Since the semiconductor light sources are compact, it would be convenient to combine two such �of Stocznia light for two different functions of rays in a single device. However, the known solutions have not shown satisfactory results. Since the light from each light source is directed to a single optical element, a physical separation between the two sources as depicted and appears as a "gap" between projected beams, for example, as the dark zone between low beam and high beam. Even the minimum clearance between the images of light sources leads to the visible gap in the extension of the rays. This can be a security risk when driving, because in this area the driver, essentially, nothing to be seen. Particularly critical is the area of the curb and the curb to the side of the vehicle, because then pedestrians, animals or danger in this area is essentially not visible to the driver. Furthermore, due to the "sharing" auxiliary optics, it must be more, and the entire device is almost as big as a device having a separate optical system for each function, so that the advantage of compact light source is lost. The optical element could be designed with the possibility of distortion of the rays to close this gap, but this distortion inevitably has harmful effect on the cutoff between light and dark areas, which can then no longer satis�amorati requirements. In addition, any measures for the correction of the optical element have a negative impact on both beams, so that guided correction of the individual beams is not viable.

Therefore, the object of the invention is to develop an improved lighting device which does not suffer from the issues mentioned above.

Summary of being inventions

Object of the invention is solved by a recessed lighting Assembly according to claim 1 of the claims and car Farny device according to claim 13 of the claims.

In accordance with the invention, recessed lighting node includes an optical device, the first light source for generating a first light beam and the first collimator for directing the first beam into the optical device, and a second light source for generating the second light beam and a second collimator for directing the second beam into the optical device, wherein the collimators are arranged so that the collimator on one side from the optical axis of the lighting node sends its beam of light essentially in the region of the optical device on the other side from the optical axis, so that the first beam intersects the second beam before arriving at the optical device, i.e. the first and second beams are directed in substantially separate region of the optical mouth�STS. Thus incarnates the optical device able to manipulate the first and second beams of light, creating a dim light coming in and out of main beam, so that facing the low beam and outgoing beam at least partially overlap in the overlap area in the projection plane located at a predetermined distance from recessed lighting node. The "projection plane" should be understood as a virtual plane or a screen at a standard distance from a recessed lighting device, whereby the distance depends on the application that uses embedded lighting device. For example, for the application associated with automobile headlights, standard ECE R112, mentioned in the introductory part, requires that a virtual projection plane arranged vertically in front of the vehicle, transversely to the direction of motion and at a normal distance of 25 m from the headlight device.

The obvious advantage of recessed lighting node in accordance with the invention is that the area in front of the vehicle is always optimally illuminated in the absence of any dark or "dark" gap between the two emerging rays. Note also that this can be achieved in the absence of the Department�the intelligent blocks for example, for devices "low beam" and "beam". This eliminates the need for careful orientation of the individual lighting devices, which is required for the known solutions. The separation of the first and second beams when they arrive in the optical device that gives this optical device, the separate manipulation of the exiting beams to create the desired overlap area in the projection plane. In addition, since leaving the low beam and outgoing beam are realized with a single optical device, all embedded lighting device in General, it is possible to realize economical manner.

In accordance with the invention, automotive Farny device contains embedded lighting node. In the presence of recessed lighting node according to the invention, it becomes possible to structure the beam for each beam function and still obtain a compact optical system, which is attractive for low-cost associated with led lights.

In the dependent claims and the following description of the specifically disclosed preferred embodiments of implementation and features of the invention. The characteristics of the embodiments can be combined appropriately, coming to additional options�the ants implementation.

In the following text, without any limitation of the invention for some embodiments it can be assumed that the first and second collimators are arranged one above the other so that the first and second beams are projected one over the other. In this case, one collimator can be called "top" of the collimator, and the other can be called "bottom" collimator. In addition, for reasons of simplicity, the first output beam in the following text may be cited as the "lower" beam and second output beam may be referred to as "upper" beam. In some embodiments that will be described below, the collimators can be positioned symmetrically around the optical axis of the optical device.

Embedded lighting device in accordance with the invention can be used to simplify the refraction or deflection of light from the first light source in the optical device (also called "auxiliary optics" in the following text) with the aim of creating the first output beam, and - similarly - for refraction or deflection of light from the second light source to create a second output beam. However, it may be advantageous manipulation of the first and second beams so that the first and second outgoing beams will be required to meet certain functional requirements. �sledovatelno, in a preferred embodiment, the optical device recessed lighting node contains an extender element for horizontal expansion of any light falling on the extending element, and/or a shearing element for vertical shift of any light falling on the shift element. Auxiliary optics can be partially closed these additional functional elements, or they can essentially completely close the auxiliary optics.

In automotive applications, for lighting the lower area in front of the vehicle is used low beam or fog light. It is desirable to cover the widest possible area, in particular, to illuminate the side of the road closer to the curb. Therefore, in a specifically preferred embodiment of the invention, the extending element is embodied with the possibility of extension, at least part of the first light beam prior to manipulation through the optical device so that the first output beam is projected, creating two overlapping areas of the first beam in the plane of projection. These areas of the first ray contain, essentially, a wider, more "stretched" near the light, and not subjected to the manipulation of the low beam.

In automotive applications, a distant light� in a preferred embodiment not only directed upwards, but - partly downwards, so that the road is lit well. Therefore, in a specifically preferred embodiment of the invention the shift element implemented to shift at least part of the second beam before the manipulation through the optical device so that the second beam is projected, creating two overlapping areas of the second beam in the plane of projection. Consequently, subjected to the manipulation portion main beam can be "pressed down" to cover the area of the beam, and not subjected to the manipulation portion main beam can be left allocated for lighting a larger area in front of the vehicle.

In one embodiment of the invention, the optical device preferably includes a projection lens. Shift element and/or the extending element can realize by installing or attaching of microstructures suitable shape on the rear surface of the lens (i.e., on the side of the lens facing the light source). These microstructures are generating the best form of light for each function. For example, in a preferred embodiment of the invention, a shearing element contains a multitude of prismatic elements mounted on the projection lens and is made with possibility of vertical shift light, p�giving a shearing element, before breaking through the projection lens. A number of these prismatic elements can be attached to a certain area of the lens and to perform, for example, with the ability to shift light from the optical axis before refraction through a projection lens. These prismatic elements can be used to offset part of the beam, for example, in the downward direction so that the area illuminated by distant light, contains two panes beam, and this gives a more optimum operating characteristics of the beam.

In yet another preferred embodiment of the invention, the extending element contains a lot of cylindrical lens elements mounted on the projection lens and is capable of refraction and horizontal expansion of the light incident on the extending element, before breaking through the projection lens. For example, a number of semi-cylindrical lenses can be attached to a single projection lens to refract and horizontally to expand the incoming beam of light is refracted by the projection lens, for example, for the purpose of at least partial expansion of the beam, so that the area illuminated by low beam contains two areas of low beam, and this gives a more optimum operating characteristics of the beam.

In �alternative embodiment, the optical device may comprise a reflector enclosing the collimators and open on one end to ensure the direction of the light rays outward. Embedded lighting device, which uses a reflector, a shearing element and/or the extending element can be formed by manipulating the surface of the reflector, for example, by creating a suitable shape faces in certain areas of the reflector. Embedded lighting device embodied by using a reflector and lens, optional collimators are arranged symmetrically relative to the axis of the reflector, and the reflector it is possible to realize an asymmetric manner.

The separation of the rays upon arrival in auxiliary optics is desirable in order to give the rays their best form.

The separation of the beams can be obtained through a number of ways. As mentioned above, recessed lighting node includes a collimation device, in which the collimators are arranged so that the collimator on one side from the optical axis of the lighting node sends its beam essentially in the region of the optical device with the same side of the optical axis recessed lighting node such that the first beam and the second beam are overlapped by no more than 20°, preferably not more than 15°, most� preferably not more than 10° due to the overlapping of the first and second beams before arriving at the optical device, and wherein the overlap area in the projection plane corresponds to the overlap of the first and second rays. Giving the collimators proper shape can be achieved that the optical axis crosses the small amount of light, or crossing will not do. This optimal partial-separation of beams in the auxiliary optics can be achieved by the use of "cavity" of the collimator, having only a thin dividing wall between two adjacent cavities, i.e. two of the collimator can be implemented, in essence, as a single object. Therefore, in a preferred embodiment the first and second collimators embodied as a double-cavity structure with a common dividing wall, whereby the collimator contains essentially parabolic outer wall, and this parabolic outer wall provides a focal point near a common dividing wall. The advantage of these embodiments of the above known solutions is that special almost a mouthpiece collimators provide a favorable directional partial separation of the rays emanating from two light sources. This leads to a corresponding partial separation of the auxiliary optics. In these zones the rays to perform the TLD� separate the functions of light (for example, high beam, low beam) can be shaped individually, whereas the area of overlap provides a more

a compact system of the headlights.

The separation of the rays can be obtained in an alternative way. Therefore, in another preferred embodiment, recessed lighting node includes a collimation device, in which the collimators are arranged so that the collimator on one side from the optical axis of the lighting node sends its beam essentially in the region of the optical device on the other side from the optical axis, so that the first beam intersects the second beam before arriving at the optical device. In other words, the "top" of the collimator is arranged to direct its beam of light in the "lower" region of the auxiliary optics, and the "bottom" of the collimator is arranged to direct its beam of light into the upper region of the auxiliary optics. Light rays passing through the focal point of the auxiliary optics, will leave the auxiliary optics essentially parallel manner. In other words, for this embodiment "intersecting rays", light in the focal plane, which is emitted from the outlet of a collimator for the light, will effectively be projected by the optical device, creating a "picture" of this output from�of Erste to light. Therefore, in the application associated with a headlight and driving lights, the upper light source can be used to generate the beam, and the "bottom" of the light source can be used to generate the beam. This embodiment is quite advantageous because it is possible favourable to simplify the design of the collimators. The light sources, and more specifically, the output apertures for light collimators, are displayed on a virtual screen or in the plane of projection. To obtain the desired overlap in the plane of projection, auxiliary optics can be changed by introducing an additional functional element, for example a prismatic element, to shift part of the beam upward or part of the beam downward with obtaining the desired area of overlap.

However, in a preferred embodiment of the invention, the overlap area in the projection plane obtained by proper manipulation of the first and second beams before they arrive in the auxiliary optics. Therefore, in a specifically preferred embodiment of the recessed light fixture contains a collimation device, in which the collimators are arranged so that the first and second beams overlap at least partially in the focal plane area of overlap in focal flat�STI optical device, so the overlap area in the projection plane corresponds to that of the focal plane area of overlap.

The greater the overlap of the beams in the focal plane will be associated with greater overlap in the projection plane or on the projection screen. However, generally speaking, it is desirable to have different rays emerging from different lighted areas and narrow the overlap area in the projection plane. In a preferred embodiment, the rays of light emitted from the collimators should only slightly overlap in the focal plane. In addition, since coming out of the collimator light in the focal plane can be effectively used to create an "image" of the light source, as mentioned above, in an additional preferred embodiment, recessed lighting node includes a collimation device, in which the outlet openings for the light of the first collimator and the second collimator are located in close proximity to the focal plane of the optical device. Here the term "close proximity" should be understood to mean that the rays are only slightly overlap in the focal plane. The actual distance between the exit openings for the light and the focal plane will depend on the size of recessed lighting Ustra�STV and applications for which it is intended. For example, when using led light sources in the collimators on the interval of 10 mm for automotive parish devices providing high beam and low beam, this distance is preferably 2 mm, preferably 1 mm, most preferably 0.5 mm.

To ensure the intersection of the beams, it is possible to position the collimator at an angle to each other. However, from the point of view of manufacture, it may be preferable and more economical installation of both light sources on a common, substantially planar carrier and not have two holders, angled. Therefore, in a preferred embodiment the embedded lighting device comprises a collimation device, in which the prismatic element mounted on the exit hole for light to one or both of the collimators. Such prismatic element is preferably embodied with the possibility of refraction of the light ray to the optical axis, providing an overlap of the first and second rays and thus installation of light sources on a common flat holder.

You can use any suitable light source that is small enough and bright and which may be partially shielded by the collimator. However, in a specifically preferred embodiment, the implementation�Oia recessed lighting node in accordance with the invention, the light source includes a led source. There is a very thin bright white LEDs, e.g., LEDs Luxeon® Altilon. In no way limiting the invention, note that the first and/or second beams can be generated using one or more of such light sources are arranged in functional groups. For example, you can implement the excitation of the led matrix in the corresponding collimation device for generating a combined beam of light.

The collimator enclosing the light source for an embodiment in which the light rays intersecting before arriving in auxiliary optics or the optical device can be shaped in any suitable manner. For example, the walls of the collimator can be positioned to provide a rectangular cross section (with the consequence that the corresponding beam is also essentially rectangular in cross section), and these walls may be of tapering form, parallel form, etc. In a preferred embodiment, the walls of the collimator attached to the arcuate shape, giving a beam of light that essentially retains its cross-section before the arrival of the auxiliary optics. The walls of the collimators are preferably thin enough so that when the collimators are positioned at an angle, touching or almost touching (d�I provide a ray intersection), weekend openings for light are located as close as possible to each other. Therefore, preferred is a wall thickness of the collimator from about 0.1 mm to 1 mm. the Collimator to direct your light beam in the region of the auxiliary optics on the same side from the optical axis is preferably formed into the shape, which results in the overlapping area of the first and second beams constituting not more than 20°, as described above. The length of the collimator can be selected in accordance with the system in which it is inserted. For example, you could use a short collimator with a length of about 6 mm, or a long collimator with a length of about 18 mm. Preferably for automotive applications, such as recessed lighting device for a headlamp, the collimator preferably contains nearly a mouthpiece collimator with a length of about 12 mm, for example 10 to 14 mm.

Brief description of the drawings

Fig.1 is a schematic view of a vehicle with a known Farny device, projecting a main beam and dipped beam on the virtual projection screen;

Fig.2A is a schematic view of the known lighting device to project a high beam and low beam on a virtual projection screen;

Fig.2b is a schematic view even one�th parish known device for projecting high beam and low beam on a virtual projection screen;

Fig.3 is a schematic view of embedded lighting device in accordance with the first embodiment of the invention;

Fig.4 is a schematic view of embedded lighting device in accordance with the second embodiment of the invention;

Fig.5 is a schematic view embedded lighting device;

Fig.6 is a schematic view of embedded lighting device in accordance with a third embodiment of the invention;

Fig.7 shows a projection lens with additional functional elements for use in embedded lighting device in accordance with the invention;

Fig.8 is a schematic view of embedded lighting device in accordance with the fourth variant embodiment of the invention;

Fig.9 is a schematic view Farny device in accordance with an embodiment of the invention;

Fig.10 is a schematic view of a vehicle with Farny device according to Fig.8 to project a high beam and low beam on a virtual projection screen.

In the drawings the same position everywhere denote the same objects. Objects on �artiach not necessarily drawn to scale; in particular, the elements and the relative position of the optical device, such as a lens and collimator, shows only a very simplified manner.

Detailed description of embodiments of

Fig.1 is a schematic view of a vehicle 10 with a known 11 spotlight with lighting device projecting a low beam 160 and the high beam 170 on a virtual projection screen 4. In the upper part of the drawing of the virtual screen 4 shows a side view of the standard distance D from the device for a headlamp. In accordance with the standard, the distance D must be 25 m, and the spatial zones 41, 42 are covered by the projection beam on the screen, must meet certain requirements. For example, the low beam 160 should cover a minimum area 42 in front of the spotlight and in side of her. Low beam 160 should be directed to the side of the car from the centre of the road so as to better coverage to the side and dipped beam 160 can be referred to the zone, too high on the plane 4 of the projection. Similarly, the high beam 170 should cover a minimum area 41 over the area beam 110 so as to better covered road at a great distance. Region 41, 42, illuminated on the virtual screen 4, shown in plan view in the lower part of the drawing. This kind of in terms of VIR�support screen 4 illustrates a disadvantage of the known lighting devices, by showing that the areas 41, 42, covered with, respectively, high beam 170 and 160 driving lights, do not give a fully illuminated area on the virtual screen, and separated by a gap 43. From the driver's perspective, this gap manifests itself as a dark area or in a poorly lit area and may reduce the driver's safety or the safety of passers-by or animals on the edge or the side of the road.

Fig.2A is a schematic view of the known lighting device to project a beam beam 170 and 160 on the virtual projection screen 4 and is illustrated, as may occur unlit area 43. Obviously, the sizes and distances on this and the following drawings displayed are too simplistic and are intended only to serve for explanatory purposes. In this case, two sources of S1, S2light mounted on the holder 13 or the base 13 located behind the 2 lenses in the headlight device. One source of S1light is located above the optical axis X, and the beam 16 of light emanating from this source, S1light, is displayed in the first output beam 160 or middle light 160, creating a projection beam 42 on the virtual screen. Another source of S2light is located below the optical axis X, and the beam 17 of the light emanating from this source, S2light displays in strombidae beam 170 or distant light 170, creating a projection beam 41 on the virtual screen 4. In this embodiment, the light sources emit by Lambert, so a large percentage of light output is lost, as shown by lines 15. Figure 42, created the top source of S1light, indicated by the lines emanating from the centre of the source S1of light that converge at some point on the virtual screen 4 corresponding to the center of the image 42 of the light source into a first output beam 160. Similarly, the image 41, created by the source S2light, indicated by the lines emanating from the centre of the source S2of light that converge at some point on the virtual screen 4 corresponding to the center of the image 41 of the light source in the second output beam 170 (for reasons of clarity, the drawing shows only the point describing the center of the light source and the corresponding point in the image of the light source). The gap between the sources S1, S2light is also "portrayed" as the gap 43 between the areas 41, 42 on the screen. However, since the distance of the projection plane requires two obviously different depicted the field, you cannot just put any S1, S2light directly next to each other.

Fig.2b is a schematic view of another known lighting�about the device to project a beam 170' and beam 160' on a virtual projection screen 4. In this case, each source S1, S2light is in the collimator C1, C2so you can use more light to play back images 41, 42 of the light source on the virtual screen 4. However, the sources S1, S2light remain separate, so that the effective gap between the sources S1, S2light (or exit openings for light collimators C1, C2) also leads to a corresponding gap 43 between the areas 41, 42 images on the virtual screen 4.

Fig.3 is a schematic view of embedded lighting device 1A in accordance with the first embodiment of the invention. In this case, a pair of collimators C1, C2each of which separates a source of S1, S2light is located behind the optical device 2, in this case, the projection lens 2, so that the inlet opening for the light collimators C1, C2located close to the focal plane FP of the lens 2 and behind that plane. In addition, collimators C1, C2are arranged so that each collimator directs the beam of light essentially in the part of the lens 2 from the side from the optical axis X, opposite to that where the collimator. The term "optical axis" should be understood as an imaginary line�, defines the path of light propagation through the lens. In the case of essentially symmetrical lenses, as shown here, the optical axis may be an axis of rotational symmetry of the lens. As shown in the drawing, the first collimator C1(above the optical axis X) directs a beam of light L1in the lower part of the lens 2 (below the optical axis X) and the second collimator C2(below the optical axis X) directs a beam of light L2in the upper part of the lens 2 (above the optical axis X). "Stable" cones L1, L2light emitted from the collimators C1, C2can be obtained, for example, by the use of collimators C1, C2having essentially parallel side walls. Collimators C1, C2are arranged so that the light rays L1, L2partially overlap (as indicated by the shaded area), creating a flat focal area LFPoverlap (indicated by thicker lines) in the focal plane FP. The image of the object in the focal plane FP is projected on the virtual screen 4, creating area 410 of the beam corresponding to the second beam L2light, and a region 420 of the beam corresponding to the first sunbeam L1light. Area 44 of overlap on the projection screen, representing the overlap between the area of the beam 410 and a region 420 of the middle �Veta, essentially a "picture" flat focal area LFPthe overlap in the focal plane FP of the lens 2 that is accented by a heavy black line. This zone 44 overlap ensures that from the point of view of the driver, the area illuminated by headlights, illuminated without any "dark gap" or unlit areas between low beam and high beam.

Fig.4 is a schematic view of embedded lighting device 1B in accordance with the second embodiment of the invention. This embodiment is a further development of the embodiment according to Fig.3, described above. In this case, the rays L1, L2light emitted from the collimators C1, C2first refracted prismatic elements 6 mounted in the outlet for the light collimators C1, C2that leads to more area LFPfloors belonging to the focal plane, i.e. in the focal plane FP. This leads to a better, larger area 44 of overlap indicated by a thicker black line on the virtual screen 4.

Fig.5 is a schematic view of embedded lighting device, not according to the claimed invention. In this embodiment the principle of operation is different compared to the previous two Varian�AMI implementation. In this case, the pair of collimators C1, C2each of which separates a source of S1, S2located behind the projection lens 2, but the collimators are arranged so that each collimator directs the beam of light essentially in the part of the lens 2 on the same side of the optical axis X, which is the collimator. The first ray of the L1generated by the source S1light in the first collimator C1and principally into the top half of the lens above the optical axis X. the Second beam L2generated by the source S2light in the second collimator C2and principally in the lower half of the lens below the optical axis X. the Tapered cones L1, L2light emitted from the collimators C1, C2can be obtained, for example, by the use of collimators C1, C2having an essentially parabolic shape. Collimators C1, C2it is also possible to embody in the form of a double-cavity collimators with a dividing wall, and wherein the outer wall of each of the collimator C1, C2have a parabolic shape, and the focal point of the parabola is close to a common dividing wall. The projection lens 2 is provided with an additional functional elements 21, 22. Extends the element 21 is fixed to the rear surface of the lens near the top and the shift element 22 is fixed to the rear surface of the lens 2 closer to the bottom. A portion of the first beam L1light arrives in the Central region of the lens 2, mainly in the upper half, and is projected onto a region 420 of the virtual screen. The remainder of the first ray L1light comes in element 21 extends and expands with the subsequent projection onto the area 421 on the virtual screen 4. The second beam arrives mainly in the lower half of the lenses above shift element 22 and projected on the area of the beam 410 of the virtual screen 4. The remainder of the second beam arrives in the shift element 22, where it is refracted with the subsequent projection onto the area 411 is shifted beam on the virtual screen 4.

Fig.6 is a schematic view of embedded lighting device 1D in accordance with a third embodiment of the invention. This embodiment is characterized by a combination of the principles of operation of the previous embodiments. And again, collimators C1, C2are arranged so that the first and second beams L1, L2light intersect before reaching the focal plane FP and the lens 2 also replenished shifting element 22 and the extending element 21. Since the collimators C1, C2are located with the possibility of sending its rays L1, L2 of light across the optical axis X, shifting element 22 is attached to the upper region of the lens 2, and the extending element 21 is fastened to the lower area of the lens 2. Part of the first beam L1and second beam L2arriving at the lens 2 extends between element 21 and the shifting element 22, give rise to, respectively, the area of beam 420 and region 410 of the beam on the virtual screen 4. Area LFPfloors belonging to the focal plane, i.e. in the focal plane FP, is projected as a zone 44 of the overlap on the virtual screen 4, and the extending element 21 leads to a more optimal region 421 of the beam, and a shearing element 22 leads to improved field beam 411.

Fig.7 shows the projection lens 2 with additional functional elements 21, 22 for use in embodiments of the lighting device in accordance with the invention described above in connection with Fig.5 and 6. In this embodiment, the shift element 22 contains a number of flat prismatic elements 220, the purpose of which is the refraction of the incoming light from the optical axis of the lens. This shifting element 22 is used to obtain the optimized region 411 of the beam on the virtual screen 4. Expanding element 21 contains a number of cylindrical lenses 210, which act by widening the entrance�schy light in this area of the lens 2, and which are used to obtain a broader area 421 of the beam on the virtual screen 4.

Fig.8 is a schematic view of embedded lighting device 1E in accordance with the fourth variant embodiment of the invention. In this case, for directing light from the lighting device 1, instead of the projection lens is used, the reflector 3. The reflector 3 is shown only schematically and simplistically through a curve, which displays a portion of the essentially parabolic reflector with an open end. A pair of collimators C1, C2are both above the optical axis of the reflector 3, so that the image sources S1, S2light can be obtained without any "shadow" of the collimation device. In this case, the drawing can only specify the actual path traversed by the light rays in three-dimensional space. Basically, some part of light emitted from the first collimator C1is directed in the extending element 31 of the reflector 3. Similarly, some portion of the light emitted from the second collimator C2that goes in the shift element 32 of the reflector 3. These widening and shifting elements 31, 32 can be simply having correct form of the areas of the reflector 3, or they may be additional optical elements attached at appropriate positions on the inner wall of the reflector 3. The reflector 3 is arranged to the direction of light emitted from the collimators C1, C2in the area of the beam 420, the region 421 of the expanded beam area beam 410 and the area 411 is shifted beam on the virtual screen 4. And again, the area 44 of overlap is set by the overlap region between 410 beam area and beam 420.

Fig.9 is a schematic view Farny device 12 in accordance with an embodiment of the invention and shows an optical device comprising a pair of sources S1, S2light, arranged in a pair of collimators C1, C2placed behind the projection lens 2 in the housing 120. Sources S1, S2light, in this case - led light sources S1, S2light such as the Luxeon® Altilon, is mounted on a suitable heat-absorbing device 121. One or both of the collimator can be installed on a movable base that can be manipulated to tilt the collimator towards or away from the optical axis X of the projection lens 2. The driver 122 delivers the necessary control signals to activate one or both sources S1, S2light, for example, in accordance with an input action of the user (the deliberate inclusion of a headlight) in response to sensor readings (which �can detect whether the vehicle is on the ridge or hill, or if the vehicle is in a turn), or in response to any other suitable control signal. Then in any situation the collimators C1, C2the lighting device can be controlled so that the low beam and high beam optimally overlap in the overlap region as described above.

Fig.10 is a schematic view of a vehicle 10 with a main device 12 according to Fig.8 projection beam BHIand low beam (BLOon the virtual projection screen 4 at a distance of 25 m from the device 12. Using any of the embodiments described in connection with Fig.3-7, for the manipulation of near and far light BLOand BHI, we can obtain the optimal region 44 of overlap on the virtual screen 4, ensuring increased safety for the driver and other road users.

Although the present invention disclosed in the form of preferred embodiments and changes, it should be clear that within the scope of the claims of the invention it is possible to make numerous additional modifications and changes. Embedded lighting device described here can be used for any combination of two different types of light, for example, a headlight and light�and headlights when driving in the daytime (DRL), fog light and DRL, far light and fog light, etc.

For the avoidance of doubt, it should be understood that the use of the signs of the singular throughout the application does not exclude the many, and the word "containing(s, s)" does not exclude other steps or elements.

1. Recessed lighting node (1A, 1B, 1D, 1E) containing:
the optical device (2, 3);
the first source (S1) light to generate a first beam (L1) light;
the first collimator (C1for direction of the first beam (L1in the optical device (2, 3);
the second source (S2) light to generate a second beam (L2) light; and
the second collimator (C2for direction of the second beam (L2in the optical device (2, 3);
moreover, the collimators (C1, C2) are arranged so that the collimator (C1, C2) on one side from the optical axis (X) of the lighting unit (2, 3) directs a beam (L1, L2) light, essentially in the region of the optical device (2, 3) on the other side from the optical axis (X), so that the first beam (L1) crosses the second beam (L2) before arriving at the optical device (2, 3), and
an optical device (2, 3) is embellished with the ability to manipulate the first and second beams (L1, L2) light, creating an emerging middle light (BLOand leaving�rd main beam (B HIthus, facing the low beam (BLO) and output beam (BHI) is partially combined in the region (44) of overlap in the plane (4) of the projection located at a predetermined distance from recessed lighting node (1A, 1B, 1D, 1E).

2. Recessed lighting node (1D, 1E) according to claim 1, wherein the optical device (2, 3) contains an extender element (21) for horizontal expansion of any light falling on the extending element (21) and/or the shift element (22) for vertical shift of any light falling on the shift element (22).

3. Recessed lighting node (1D, 1E) according to claim 2, wherein the extending element (21) is embodied with the possibility of extension, at least part of the first beam (L1before manipulation by the optical device (2), so facing the low beam (BLO) is projected, creating two overlapping areas (420, 421) of the first beam in the plane (4) of the projection.

4. Recessed lighting node (1D, 1E) according to claim 2 or claim 3, wherein the shift element (22) is embodied with the possibility of shifting at least part of the second beam (L2before manipulation by the optical device (2), so that the emerging beam (BHI) is projected, creating two overlapping areas (410, 411) of the second beam in a plane (4) of the projection.

5. Internal�by the lighting node (1A, 1B, 1D) according to claim 1 or claim 2, in which the optical device (2) comprises a projection lens (2).

6. Recessed lighting node (1D) according to claim 5, in which the shift element contains a multitude of prismatic elements (220) mounted on the projection lens (2) and is made with possibility of vertical shift of the light incident on the shift element (22), before breaking through a projection lens (2).

7. Recessed lighting node (1A, 1B, 1D, 1E) according to claim 5, in which the extending element (21) comprises a plurality of cylindrical lens elements (210) mounted on the projection lens (2) and is capable of refraction and horizontal expansion of the light incident on the extending element (21), before breaking through a projection lens (2).

8. Recessed lighting node (1A, 1B, 1D) according to claim 1 or claim 2, in which the first and second beams (L1, L2) overlap at least partially in the region (LFP) overlap in the focal plane FP of the optical device (2, 3) so that the area (44) of overlap in the projection plane corresponds to a region (LFP) overlap in the focal plane.

9. Recessed lighting node (1A, 1B, 1D) according to claim 1 or claim 2, containing the collimation device in which the outlet openings (5) for light of the first collimator (C1and the second collimat�PA (C 2) are in close proximity to the focal plane (FP) of the optical device (2, 3).

10. Recessed lighting node (1B) according to claim 1 or claim 2, containing the collimation device in which a collimator (C1, C2contains prismatic element (6) in the outlet for the light, and this prismatic element (6) is arranged to refraction of the beam (L1, L2) light towards the optical axis (X).

11. Recessed lighting Assembly according to claim 1 or claim 2, in which the source (S1, S2) light contains a LED source (S1, S2) light.

12. Recessed lighting Assembly according to claim 1 or claim 2, wherein the collimator (C1, C2contains almost a mouthpiece collimator (C1, C2) with a length in the range between 6 mm and 18 mm, and most preferably with a length of about 12 mm.

13. Automotive Farny device (12) containing recessed lighting node (1A, 1B, 1D, 1E) according to any one of items 1 to 12.



 

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13 cl, 5 dwg

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5 cl, 15 dwg

The invention relates to the field of lighting, in particular to designs of headlights of vehicles, and can be applied in the automotive, military and special machinery

The invention relates to lighting, in particular for safe illumination of the road ahead of the vehicle

FIELD: controlling vehicle headlight beam position.

SUBSTANCE: proposed method includes concentration of light source beam by means of axially symmetric ellipsoid reflector in vicinity of its second focal plane at input end of fiber-optic image converter having vignetting component; shape of fiber-optic image converter output end is mirror image of that of headlight beam distribution and is disposed in focal plane of condenser lens. Position of headlight beam relative to roadbed is controlled by turning fiber-optic image converter in horizontal and/or vertical plane relative to second focal point of ellipsoid reflector disposed on input end of fiber-optic image converter. Device implementing this method has fiber-optic image converter with vignetting component mounted on spherical joint whose center is disposed at input end and coincides with position of reflector second focal point; movable part of spherical joint is provided with carrier elastically tightened in two planes (horizontal and vertical ones) crossing reflector optical axis; carrier is joined through adjusting screws to headlight body which is rigidly fixed to reflector.

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5 cl, 15 dwg

FIELD: transport engineering.

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EFFECT: improved safety on the road owing to prevention of blinding of driver by light of headlights of on-coming vehicles.

3 cl, 3 dwg

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