CN108561846B - Matrix type lighting device for vehicle - Google Patents
Matrix type lighting device for vehicle Download PDFInfo
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- CN108561846B CN108561846B CN201810376607.8A CN201810376607A CN108561846B CN 108561846 B CN108561846 B CN 108561846B CN 201810376607 A CN201810376607 A CN 201810376607A CN 108561846 B CN108561846 B CN 108561846B
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- light
- array unit
- light source
- lens
- matrix
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/25—Projection lenses
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
- F21W2102/10—Arrangement or contour of the emitted light
- F21W2102/13—Arrangement or contour of the emitted light for high-beam region or low-beam region
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
- F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles
Abstract
The invention provides a matrix type lighting device for a vehicle, which comprises a light source module, a projection lens, a projection emergent space and a projection image surface which are sequentially arranged along an optical axis direction, wherein the light source module comprises a light source array unit, a light blocking rib array unit and a light collecting lens array unit which are sequentially arranged along the optical axis direction, the light source array unit is provided with a plurality of luminous light sources which are independently controlled and arranged in a matrix manner, the light blocking rib array unit is provided with a plurality of light blocking ribs which are arranged in a matrix manner and are arranged at the periphery of each luminous light source, and the light collecting lens array unit is provided with a plurality of light collecting lenses which are arranged in a matrix manner and are just opposite to each luminous light source along the optical axis direction. In the application, the independent control of the plurality of light-emitting light sources in the light source module can avoid the dazzling of other dangerous participants on the road, and ensure the safety of driving on the road at night; this application can also effectively reduce light source module's volume for the whole miniaturization of matrix lighting device for the vehicle.
Description
Technical Field
The invention relates to the field of vehicle lamps, in particular to a matrix type lighting device for a vehicle.
Background
When a vehicle runs at night, most drivers turn on the headlights to illuminate, but the headlights can dazzle other participants on the road (such as vehicles running in opposite directions, vehicles running in the same direction, and the like) dangerously, so that traffic safety accidents are easily caused, and the safety of driving at night by all parties on the road is further reduced.
With the increasingly prominent safety problem of vehicle driving at night, more and more automobile relevant manufacturers are developing novel intelligent vehicle lamp technology. The novel intelligent vehicle lamp technology is mainly a light type variable vehicle lamp developed by aiming at realizing AFS and ADB module functions. For example, when the headlight with the ADB module function is matched with a detection system of a vehicle, and other participants on a road are detected and found to be in a certain section of headlight illumination, the system can intelligently adjust an illumination area and illumination brightness in real time through independent control of each LED forming the headlight, so that dangerous dazzling of the lighted participants is avoided, and the space without other road participants is kept high-brightness illumination. However, in the conventional ADB module functional headlamp, the arrangement pitch of the LEDs constituting the light source module is very long, which results in a large structure and heavy weight of the headlamp.
Disclosure of Invention
In view of the above-described drawbacks of the prior art, an object of the present invention is to provide a matrix type lighting device for a vehicle, which can realize a light pattern variation and a volume reduction.
In order to achieve the above object, the present invention provides a matrix type lighting device for a vehicle, including a light source module, a projection lens, a projection exit space, and a projection image plane, which are sequentially arranged along an optical axis direction, wherein the light source module includes a light source array unit, a light blocking rib array unit, and a light collecting lens array unit, which are sequentially arranged along the optical axis direction, the light source array unit has a plurality of light emitting sources which are independently controlled and arranged in a matrix, the light blocking rib array unit has a plurality of light blocking ribs which are arranged in a matrix and are arranged at the periphery of each light emitting source, and the light collecting lens array unit has a plurality of light collecting lenses which are arranged in a matrix and are arranged opposite to each light emitting source along the optical axis direction; and light rays emitted by the light emitting sources in the light source array unit are transmitted through the light receiving lens, the projection lens and the projection emergent space in sequence along the optical axis direction to form matrix light distribution on the projection image surface.
Further, the projection lens comprises a first lens and a second lens which are sequentially arranged along the direction of an optical axis, and the refractive index and the dispersion coefficient of the first lens are different from those of the second lens.
Preferably, the material of the first lens and the second lens is PMMA, PC, or glass.
Further, the light-emitting source is a semiconductor light source, or includes a semiconductor laser and a light conversion element, or includes a solid laser and a light conversion element.
Preferably, the light-collecting lens is a fresnel lens.
Further, the light blocking rib array unit and the light receiving lens array unit are molded or pressed into a whole.
Preferably, the material of the light-receiving lens array unit is silicone, PC, PMMA, or glass.
Preferably, the light blocking rib array unit is made of a non-transparent material.
Preferably, the light blocking rib array unit includes a base made of a transparent material, and a light blocking layer made of black paint sprayed on a surface of the base.
As described above, the matrix type lighting device for a vehicle according to the present invention has the following advantageous effects:
in the application, the independent control of the plurality of light-emitting light sources in the light source module can avoid the dazzling of other dangerous participants on the road, and ensure the safety of driving on the road at night; especially, a plurality of independent control's in this application luminous light source is the matrix arrangement, combines the muscle that is in the light of matrix arrangement and receive light lens, can obtain better light effect, can also effectively reduce light source module's volume simultaneously for the whole miniaturization of matrix lighting device for the vehicle.
Drawings
Fig. 1 is a schematic structural diagram of a matrix type lighting device for a vehicle according to the present application.
Fig. 2 is an optical schematic diagram of the matrix type lighting device for a vehicle according to the present application.
Fig. 3 is a schematic structural diagram of a light source module according to a first embodiment of the present application.
Fig. 4 is a cross-sectional view of fig. 3.
Fig. 5 is a schematic connection diagram of the light blocking rib array unit and the light collecting lens array unit in another view angle in fig. 3.
Fig. 6 is a schematic structural diagram of a second embodiment of a light source module in the present application.
Fig. 7 is a cross-sectional view of fig. 6.
Fig. 8 is an optical schematic diagram of a light source module according to the present application.
Description of the element reference numerals
1 direction of optical axis
2 light source module
21 light source array unit
211 luminous light source
22 light blocking rib array unit
221 light blocking rib
23 light-collecting lens array unit
231 light-collecting lens
3 projection lens
31 first lens
32 second lens
4 projection exit space
5 projection image plane
6 matrix light distribution
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
It should be understood that the structures, proportions, and dimensions shown in the drawings and described herein are for illustrative purposes only and are not intended to limit the scope of the present invention, which is defined by the claims, but rather by the claims. In addition, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description only and are not intended to limit the scope of the present invention, and changes or modifications of the relative relationship thereof may be made without substantial technical changes and modifications.
For convenience of description, in the following embodiments, the optical axis direction 1 is defined as the front direction, and therefore, the left side of the paper surface in fig. 2 is the front direction.
As shown in fig. 1 and 2, the present application provides a matrix type lighting device for a vehicle, comprising a light source module 2, a projection lens 3, a projection exit space 4, and a projection image plane 5 at a certain distance of the system, which are sequentially arranged along an optical axis direction 1; as shown in fig. 3 and 4, or fig. 6 and 7, the light source module 2 includes a light source array unit 21, a light blocking rib array unit 22, and a light receiving lens array unit 23, which are sequentially arranged along the optical axis direction 1, the light source array unit 21 has a plurality of light emitting light sources 211 which are independently controlled to be bright and dark and arranged in a matrix, the light blocking rib array unit 22 has a plurality of light blocking ribs 221 which are arranged in a matrix and arranged at the periphery of each light emitting light source 211, and the light receiving lens array unit 23 has a plurality of light receiving lenses 231 which are arranged in a matrix and are opposite to each light emitting light source 211 along the optical axis direction 1, that is: a light collecting lens 231 is disposed right in front of each light emitting source 211.
In the matrix lighting device for a vehicle, the light source module 2 emits light, that is: as shown in fig. 8, the light emitting sources 211 in the light source array unit 21 emit light (generally, divergent light beams), most of the emitted light beams are collected and refracted by the light receiving lens 231 in the light receiving lens array unit 23, which is disposed opposite to the light emitting sources 211, and then the light beam angle and the light beam aperture are changed to continue to propagate along the optical axis direction 1, and in the light source array unit 21, the large-angle light beams emitted by each light emitting source 211 are blocked by the light blocking ribs 221 located at the periphery of the light emitting source 211, so that the large-angle light beams do not continue to propagate along the optical axis direction 1, and further, the light beams emitted by other light emitting sources 211 in the light source array unit 21 are not interfered. The system transmits light emitted by the light-emitting module along the optical axis direction 1, realizes desired light distribution in the projection emitting space 4 after being refracted by the projection lens 3, and finally realizes matrix type light distribution 6 of the light-emitting module on a projection image surface 5 at a certain distance uniformly, thereby realizing array type pixelization illumination. When the detection system of the vehicle detects that other participants on the road are in a certain pixel interval of the matrix type lighting device for the vehicle of the vehicle, the system realizes the brightness modulation of a plurality of light rays in the projection emergent space 4 by controlling the lighting brightness of the plurality of luminous light sources 211 which independently control the brightness, so that the matrix type light distribution 6 formed on the projection image surface 5 is adjusted, and the dazzling of danger to other participants on the road is effectively avoided; when the detection system of the vehicle detects that no other participants exist on the road, the system keeps the matrix type illuminating device for the vehicle to illuminate with high brightness. Therefore, matrix lighting device for vehicle in this application is a matrix self-adaptation headlight of vehicle, can form the matrix light distribution 6 of multiform on throwing image plane 5 through the independent control to a plurality of luminescent light source 211, realizes can not dazzling other participants on the road, under the support of this technique, can guarantee the place ahead high quality illumination of our (carrying on matrix self-adaptation headlight), can not form dangerous dazzling to other participants on the road (for example the vehicle that goes in opposite directions, the syntropy again), has guaranteed the safety that each side of on the road traveles night. Especially, a plurality of independently controlled's luminescent light source 211 in this application are the matrix arrangement, and the rib 221 that is in the light that combines the matrix arrangement receives light lens 231, can obtain better light-emitting effect, can also effectively reduce light source module 2's volume simultaneously for the whole miniaturization of matrix lighting device for the vehicle.
As shown in fig. 1, the projection lens 3 includes a first lens 31 and a second lens 32 sequentially arranged along an optical axis direction 1, and refractive indexes and dispersion coefficients of the first lens 31 and the second lens 32 are different; the material of the first lens 31 and the second lens 32 may be plastic such as PMMA, PC, etc., or glass. The light beam emitted by the light source module 2 is a wide-spectrum light beam composed of different wavelength spectrums, and after the first lens 31 and the second lens 32 which are different in refractive index and dispersion coefficient are matched for use, the light beam emitted by the light source module 2 can be prevented from forming an unclear projection effect of color separation after passing through the projection lens 3, and an achromatic effect is achieved. The first lens 31 and the second lens 32 may be formed by injection molding of two materials, may be cemented, and may also be formed by two separate lenses.
As shown in fig. 4 or fig. 8, in the light source module 2, each light-emitting light source 211 for independently controlling brightness in the light source array unit 21, each light-blocking rib 221 in the light-blocking rib array unit 22, which is independently located at the periphery of the light-emitting light source 211, and each light-blocking lens 231 in the light-blocking lens array unit 23, which is independently located right in front of the light-emitting light source 211, correspond to each other one by one; as shown in fig. 5, each light blocking rib 221 is preferably of a frame-shaped structure, so each light blocking rib 221 has four rib edges, and two adjacent light blocking ribs 221 share one rib edge. The types of the light emitting sources 211 are various: the light source may be a semiconductor light source, or a light source including a semiconductor laser and a light conversion element, or a light source including a solid laser and a light conversion element, and the light conversion element may be made of a light conversion material. The light-blocking rib array unit 22 formed by the plurality of light-blocking ribs 221 in a matrix arrangement manner is an integral piece; the light blocking rib array unit 22 may be made of a non-transparent material, or the light blocking rib array unit 22 includes a base body made of a transparent material and a light blocking layer made of black paint sprayed on the surface of the base body, that is, the black paint is sprayed after the light blocking rib array unit 22 is made of a transparent material. The light collecting lens 231 may be fixed by using an additional bracket, or may be directly fixed to the light blocking rib array unit 22; when the light collecting lens 231 is fixed to the light blocking rib array unit 22, the light collecting lens 231 and the light blocking rib array unit 22 can be manufactured as an integral piece, for example: as shown in fig. 3 or fig. 6, the light blocking rib array unit 22 and the light collecting lens array unit 23 are injection molded or compression molded as an integral piece, further reducing the volume of the matrix type lighting device for a vehicle. Of course, the light blocking rib array unit 22 and the light collecting lens array unit 23 may be two independent parts.
The light source module 2 has two preferred embodiments, one of which is shown in fig. 3 to 5, and the light receiving lens 231 used therein is a fresnel lens, so that the space of the light source module 2 can be further reduced, and the weight and cost of the light source module 2 can be reduced; in the second embodiment, as shown in fig. 6 and 7, the light collecting lens 231 is a conventional lens. In the two embodiments of the light source module 2, the light receiving lens array unit 23 may be made of a transparent material such as silicone, PC, PMMA, glass, or the like; the surface of the light-collecting lens array unit 23 may be a smooth mirror surface or a rough structured surface.
In summary, the matrix type lighting device for the vehicle according to the present application has the following beneficial effects:
1. a matrix light distribution 6 can be obtained on the projection image plane 5, and an array type pixelized illumination can be realized.
2. The brightness of a plurality of light rays in the projection emergent space 4 can be modulated by independently controlling the brightness of the light-emitting light sources 211 distributed in the matrix, so that the capability of shielding a plurality of targets is realized.
3. The plurality of light emitting sources 211, the plurality of light blocking ribs 221, and the plurality of light collecting lenses 231 are arranged in a matrix, so that the volume of the light source module 2 can be reduced, and the energy utilization rate of the light sources can be improved.
4. The structure is simple, optical shaping structures such as a light guide rod and the like are omitted, the size of an optical system of an array type pixelized illumination scheme is reduced, and the processing cost and the assembly difficulty are reduced.
5. The stray light shielding structure, that is, the light blocking rib array unit 22 is provided, so that light emitted by the plurality of light emitting sources 211 in the light source array unit 21 is not interfered with each other, and light distribution is uniform.
6. The achromatic structure consisting of the first lens 31 and the second lens 32 with different refractive indexes and dispersion coefficients is arranged, so that the phenomena of uneven and unclear colors of the projection surface can be effectively avoided.
Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (8)
1. A matrix lighting device for a vehicle, characterized in that: including light source module (2), projection lens (3), projection emergent space (4) and the projection image plane (5) that set gradually along optical axis direction (1), light source module (2) include light source array unit (21), the muscle array unit (22) that is in the light that sets gradually along optical axis direction (1) and receive optical lens array unit (23), light source array unit (21) have a plurality of independent control bright dark, and be luminous light source (211) that the matrix was arranged, the muscle array unit (22) that is in the light has a plurality of be the matrix arrange, and establish at every luminous light source (211) outlying muscle (221) that is in the light, receive optical lens array unit (23) have a plurality of be the matrix arrange, and just to receiving optical lens (231) that set up along optical axis direction (1) and every luminous light source (211), in light source module (2), luminous light source (211) that every independent control is bright dark in light source array unit (21), Each light blocking rib (221) in the light blocking rib array unit (22) is independently positioned at the periphery of the light emitting source (211), and each light receiving lens (231) in the light receiving lens array unit (23) is independently positioned right in front of the light emitting source (211) in a one-to-one correspondence manner; the projection lens (3) comprises a first lens (31) and a second lens (32) which are sequentially arranged along the optical axis direction (1), and the refractive index and the dispersion coefficient of the first lens (31) and the second lens (32) are different; the light receiving lens (231) is used for collecting and refracting light beams emitted by the light emitting source (211) which is arranged opposite to the light receiving lens (231); the matrix light distribution (6) is formed on the projection image plane (5) after light emitted by the light source (211) in the light source array unit (21) sequentially passes through the light receiving lens (231), the projection lens (3) and the projection emergent space (4) in the optical axis direction (1) and is transmitted, brightness modulation of a plurality of light rays in the projection emergent space (4) is realized by controlling the illumination brightness of the plurality of light sources (211) which independently control brightness, and therefore the matrix light distribution (6) formed on the projection image plane (5) is adjusted, and the matrix light distribution (6) in various forms is formed on the projection image plane (5).
2. The matrix lighting device for a vehicle as claimed in claim 1, wherein: the material of the first lens (31) and the second lens (32) is PMMA, PC or glass.
3. The matrix lighting device for a vehicle as claimed in claim 1, wherein: the light-emitting light source (211) is a semiconductor light source, or comprises a semiconductor laser and a light conversion element, or comprises a solid laser and a light conversion element.
4. The matrix lighting device for a vehicle as claimed in claim 1, wherein: the light receiving lens (231) is a Fresnel lens.
5. The matrix lighting device for a vehicle as claimed in claim 1, wherein: the light blocking rib array unit (22) and the light receiving lens array unit (23) are integrated into a whole through injection molding or compression molding.
6. The matrix lighting device for a vehicle according to claim 1 or 5, wherein: the light-receiving lens array unit (23) is made of organic silicon, PC, PMMA or glass.
7. The matrix lighting device for a vehicle according to claim 1 or 5, wherein: the light blocking rib array unit (22) is made of a non-transparent material.
8. The matrix lighting device for a vehicle according to claim 1 or 5, wherein: the light blocking rib array unit (22) comprises a base body made of a transparent material and a light blocking layer made of black paint sprayed on the surface of the base body.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810376607.8A CN108561846B (en) | 2018-04-25 | 2018-04-25 | Matrix type lighting device for vehicle |
| DE112019000124.8T DE112019000124T5 (en) | 2018-04-25 | 2019-04-02 | Matrix lighting device for a vehicle |
| JP2020551964A JP6949244B2 (en) | 2018-04-25 | 2019-04-02 | Matrix lighting device for vehicles |
| US16/958,707 US10962189B2 (en) | 2018-04-25 | 2019-04-02 | Matrix lighting device for vehicle |
| PCT/CN2019/080973 WO2019205900A1 (en) | 2018-04-25 | 2019-04-02 | Matrix type illumination device for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810376607.8A CN108561846B (en) | 2018-04-25 | 2018-04-25 | Matrix type lighting device for vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN108561846A CN108561846A (en) | 2018-09-21 |
| CN108561846B true CN108561846B (en) | 2020-09-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810376607.8A Active CN108561846B (en) | 2018-04-25 | 2018-04-25 | Matrix type lighting device for vehicle |
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| CN (1) | CN108561846B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6949244B2 (en) * | 2018-04-25 | 2021-10-13 | 華域視覚科技（上海）有限公司Ｈａｓｃｏ Ｖｉｓｉｏｎ Ｔｅｃｈｎｏｌｏｇｙ Ｃｏ．， Ｌｔｄ． | Matrix lighting device for vehicles |
| CN109488989B (en) * | 2018-12-28 | 2023-09-08 | 上汽大众汽车有限公司 | Matrix LED daytime running light |
| CN209688726U (en) * | 2019-05-20 | 2019-11-26 | 华域视觉科技(上海)有限公司 | A kind of matrix form car light Optical devices, car light and vehicle |
| CN112584567B (en) * | 2019-09-30 | 2024-01-26 | 宁波舜宇车载光学技术有限公司 | Multi-chip lighting system and control method thereof |
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| CN102023325A (en) * | 2009-09-16 | 2011-04-20 | 富士胶片株式会社 | Forming mould for wafer scale lens array, manufacturing method for wafer scale lens array, wafer scale lens array, lens mould and shooting unit |
| CN103807714A (en) * | 2012-11-09 | 2014-05-21 | 欧司朗股份有限公司 | Lighting device |
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