CN107859968B - Car light lighting system, car light assembly and car - Google Patents
Car light lighting system, car light assembly and car Download PDFInfo
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- CN107859968B CN107859968B CN201711162012.4A CN201711162012A CN107859968B CN 107859968 B CN107859968 B CN 107859968B CN 201711162012 A CN201711162012 A CN 201711162012A CN 107859968 B CN107859968 B CN 107859968B
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- 239000006185 dispersion Substances 0.000 abstract description 10
- 238000005286 illumination Methods 0.000 description 24
- 230000003287 optical effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000007547 defect Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/04—Refractors for light sources of lens shape
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
- F21V7/04—Optical design
-
- 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
- F21W2102/17—Arrangement or contour of the emitted light for regions other than high beam or low beam
- F21W2102/19—Arrangement or contour of the emitted light for regions other than high beam or low beam for curves
Abstract
The invention relates to the technical field of automobile lamps, in particular to an automobile lamp lighting system, an automobile lamp assembly comprising the automobile lamp lighting system and an automobile comprising the automobile lamp assembly, wherein the automobile lamp lighting system comprises a light source, a reflector, a light shielding plate and a lens; the reflector has a near focus and a far focus, the light source is arranged at the near focus of the reflector, the far focus of the reflector is positioned near the focus of the lens, the light shield has a light shield cut-off line with the same shape as the cut-off line of the light shape of the car light, and the light shield cut-off line is positioned at the focus of the lens. The lens changes the light path through twice refraction of the refraction surface to the light and once reflection of the reflection surface to the light, obviously improves the light path changing capability, can reduce the focal length and improves the chromatic dispersion.
Description
Technical Field
The invention relates to the technical field of automobile lamps, in particular to an automobile lamp lighting system, an automobile lamp assembly comprising the same and an automobile comprising the same.
Background
Projection lighting systems commonly used in automotive lamps generally include a light source, a reflector, a visor, and a lens. The reflector is ellipsoidal, the light-emitting center of the light source is arranged at the near focus of the ellipsoidal reflector, the light rays emitted by the light source are converged near the far focus of the ellipsoidal reflector after being reflected by the ellipsoidal reflector, the light shielding plate is arranged at the far focus of the ellipsoidal reflector, the shape of the light shielding plate is consistent with the required light-and-shade cut-off line shape of the low beam, and finally, the light shielding plate forms a quasi-parallel light low beam shape with the light-and-shade cut-off line a through the lens (see figure 1).
As shown in fig. 2, the conventional lens adopts a plano-convex lens, the inner side surface of the plano-convex lens is a plane and faces the light source, the outer side surface of the plano-convex lens is an aspheric surface of revolution, and the light of the light source is reflected by the reflecting mirror, focused near the focal point of the plano-convex lens, and then emitted from the inner side surface of the plano-convex lens to the outer side surface of the plano-convex lens, wherein the emitted light is in a nearly horizontal direction.
Patent publication No. CN101298906a discloses a biconvex lens based automotive headlamp, which adopts a biconvex lens with a spherical inner side surface and a free curved outer side surface, light rays of a light source are reflected by a reflector, focused near the focal point of the biconvex lens, and then emitted from the inner side surface to the outer side surface of the biconvex lens, and the emitted light rays are nearly horizontal.
The plano-convex lens and the biconvex lens are used for realizing the change of the light path by refracting the light twice, so that the incident light is projected to the road surface after the light path is changed twice, and the defects of larger focal length and weaker light path changing capability exist.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a car lamp lighting system with small focal length and strong light path changing capability, a car lamp assembly comprising the car lamp lighting system and a car comprising the car lamp assembly, so as to overcome the defects in the prior art.
In order to solve the technical problems, the invention adopts the following technical scheme: the car light lighting system comprises a light source, a reflector, a light shielding plate and a lens, wherein the lens comprises a reflecting surface and a refracting surface opposite to the reflecting surface, and when external parallel rays are incident into the lens, the external parallel rays can sequentially pass through primary refraction of the refracting surface, reflection of the reflecting surface and secondary refraction of the refracting surface, then are emitted out of the lens and are converged to form a focus; the reflector has a near focus and a far focus, the light source is arranged at the near focus of the reflector, the far focus of the reflector is positioned near the focus of the lens, the light shield has a light shield cut-off line with the same shape as the cut-off line of the light shape of the car light, and the light shield cut-off line is positioned at the focus of the lens.
Preferably, the reflecting surface is a plane or a curved surface of revolution.
Preferably, the refractive surface is a surface of revolution.
Preferably, the revolution surface has a revolution axis, the lens has a plurality of focuses, and all the focuses form a focal line with the revolution axis as a revolution center; the light shielding plate is in an arc shape matched with the focal line, and the cut-off line of the light shielding plate is positioned at the focal line.
Preferably, a plurality of reflectors are provided, all of the reflectors are sequentially arranged on a circumference with the rotation axis as the rotation center, the far focus of each of the reflectors is positioned near the focal line of the lens, and each of the reflectors is correspondingly provided with a light source.
A vehicle lamp assembly comprising a vehicle lamp lighting system as described above.
An automobile comprising a lamp assembly as described above.
Compared with the prior art, the invention has obvious progress:
the invention relates to a car lamp lighting system, a car lamp assembly comprising the car lamp lighting system and a car comprising the car lamp assembly, wherein the adopted lens is provided with a reflecting surface, a refracting surface and a focus, a light shielding cut-off line is arranged at the focus of the lens, a far focus of a reflecting mirror is arranged near the focus of the lens, and a light source is arranged near the focus of the reflecting mirror, so that light emitted by the light source is converged near the focus of the lens after being reflected by the reflecting mirror and is shielded by the light shielding plate to form a low beam light shape meeting the requirement with the light shielding cut-off line, and then the low beam light is amplified and imaged to a road surface after primary refraction, reflection and secondary refraction of the lens, thereby realizing the lighting function. The lens changes the light path through twice refraction of refraction facing light and once reflection of reflection facing light, obviously improves the light path changing capability of the lens, can effectively reduce the focal length of the lens and improves the chromatic dispersion phenomenon.
Drawings
Fig. 1 is a schematic diagram of a low beam light pattern with a cutoff line.
Fig. 2 is a schematic view of the optical performance of a plano-convex lens according to the prior art.
Fig. 3 is a schematic top view of a lamp lighting system according to an embodiment of the present invention.
Fig. 4 is a schematic cross-sectional view taken along line A-A in fig. 3.
Fig. 5 is a schematic view of the optical performance of a lens according to an embodiment of the present invention.
Fig. 6 is a schematic light path diagram of a lamp lighting system according to an embodiment of the present invention.
Fig. 7 is a schematic view of an optical path of the lamp lighting system at a cutoff line according to the embodiment of the present invention.
Fig. 8 is a schematic diagram of a lamp lighting system according to an embodiment of the present invention, in which two light sources and a reflector are provided.
Fig. 9 is a schematic diagram of the light path of the light emitted by one of the light sources in fig. 8.
Fig. 10 is a schematic diagram of an illumination light pattern formed by the illumination of one of the light sources in fig. 8.
Fig. 11 is a schematic view of the light path of the light emitted by the other light source in fig. 8.
Fig. 12 is a schematic view of an illumination light pattern formed by the illumination of the other light source of fig. 8.
Fig. 13 is a schematic view of the light paths of the two light sources of fig. 8 emitting light simultaneously.
Fig. 14 is a schematic view of an illumination light pattern formed by the simultaneous illumination of two light sources in fig. 8.
In the figure:
a. cut-off line b of low beam shape and blue light path
1. Light sources 2,2a,2b, reflector
3. Mask 4 and lens
4a, reflecting surface 4b, refracting surface
4c, focus 4d, focal line
Detailed Description
The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and are not intended to be limiting.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, in the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
As shown in fig. 3 to 14, one embodiment of the lamp lighting system of the present invention.
As shown in fig. 3 and 4, the lamp lighting system of the present embodiment includes a light source 1, a reflector 2, a shade 3, and a lens 4.
As shown in fig. 5, the lens 4 of the present embodiment includes a reflecting surface 4a and a refracting surface 4b opposite to the reflecting surface 4a, and when the external parallel light enters the lens 4, the external parallel light can sequentially pass through the refracting surface 4b for primary refraction, the reflecting surface 4a for reflection, and the refracting surface 4b for secondary refraction, and then exit the lens 4 and converge to form a focal point 4c. The light emitted from the focal point 4c is incident on the lens 4 according to the principle of reversibility of the optical path, and is also refracted once by the refraction surface 4b, reflected by the reflection surface 4a, refracted twice by the refraction surface 4b, and then emitted out of the lens 4, and forms a quasi-parallel light. In this embodiment, the incident light is totally reflected on the reflecting surface 4a of the lens 4.
As shown in fig. 6, in this embodiment, the reflecting surface of the reflecting mirror 2 is an ellipsoidal-like surface, so that the reflecting mirror 2 has a near focus and a far focus. The light source 1 is arranged at the near focus of the reflector 2, the far focus of the reflector 2 is positioned near the focus 4c of the lens 4, the light shielding plate 3 has a light shielding plate cut-off line which has the same shape as the cut-off line a of the low beam shape of the car light, and the light shielding plate cut-off line is positioned at the focus 4c of the lens 4 and is used for shielding light and forming a clear cut-off line a of the low beam shape. Thus, the light emitted by the light source 1 is reflected by the reflecting surface of the reflecting mirror 2 and then converged to the far focus of the reflecting mirror 2, namely, to the vicinity of the focal point 4c of the lens 4, and is blocked by the light shielding plate 3 to form a dipped beam light shape meeting requirements with a cut-off line a, and then enters the lens 4, and is refracted once by the refracting surface 4b of the lens 4, reflected by the reflecting surface 4a and refracted twice by the refracting surface 4b, and then amplified and imaged on the road surface, thereby realizing the lighting function. The lens 4 of the embodiment changes the optical path by twice refraction of the light by the refraction surface 4b and once reflection of the light by the reflection surface 4a, which significantly improves the optical path changing capability of the lens 4, can effectively reduce the focal length of the lens 4, and improves the chromatic dispersion phenomenon.
In the prior art, a white LED (Light Emitting Diode ) light emitting chip is generally adopted as a light source in a car light lighting system, the energy of blue light in the emitted light is maximum, and the blue light has a larger refractive index in the same medium, so that the cut-off line a of a low beam light shape is easy to be blued due to chromatic dispersion, and the bottom of the low beam light shape is easy to have obvious chromatic dispersion. In the lamp lighting system of the present embodiment, the light path is changed by twice refraction of the light by the refraction surface 4b of the lens 4 and once reflection of the light by the reflection surface 4a, fig. 7 shows the blue light path b of the lamp lighting system of the present embodiment at the cut-off line a, and it is seen that after the light is refracted for the first time by the refraction surface 4b, the blue light path b is located above the cut-off line a due to the larger refractive index of the blue light, but after being reflected by the reflection surface 4a, the blue light path b becomes located below the cut-off line a and irradiates the illumination area, so that the problem of bluing at the cut-off line a can be greatly improved, the formed cut-off line a of the low beam shape has no obvious bluing, and the bottom of the low beam shape has no obvious dispersion. It can be derived from this that, after the light path of the car light lighting system of this embodiment passes through the twice refraction of the refraction surface 4b of the lens 4 and the once reflection of the reflection surface 4a, the chromatic dispersion can be greatly reduced, the chromatic dispersion phenomenon of the dipped beam is effectively improved, the problem that the projection type dipped beam module is unavoidable in the industry and the dipped beam shape cut-off line a blus and the dipped beam shape bottom chromatic dispersion cannot be solved all the time is solved.
In this embodiment, the reflecting surface 4a of the lens 4 may be a plane or a curved surface of revolution, and the curved surface of revolution may be a spherical surface or an aspherical surface.
As shown in fig. 8, in the present embodiment, the refractive surface 4b of the lens 4 is a curved surface of revolution, which may be a spherical surface or an aspherical surface, and has a rotation axis. The lens 4 has a plurality of focal points 4c and all the focal points 4c form a focal line 4d with the rotation axis of the refractive surface 4b as the rotation center. The light shielding plate 3 has an arc shape matching with the focal line 4d of the lens 4, and a light shielding plate cut-off line of the light shielding plate 3 is located at the focal line 4d of the lens 4. Thus, a plurality of reflecting mirrors 2 may be provided, all of the reflecting mirrors 2 being arranged in order on a circumference with the rotation axis of the refractive surface 4b as the rotation center, and the far focus of each reflecting mirror 2 being located near the focal line 4d of the lens 4, one light source 1 being provided for each reflecting mirror 2. The light emitted by each light source 1 can be reflected by the corresponding reflector 2 and then converged to the vicinity of the focal line 4d of the lens 4, and is blocked by the light shielding plate 3 to form a light shape with a cut-off line a, and then the light is injected into the lens 4, is refracted once by the refracting surface 4b of the lens 4, is reflected by the reflecting surface 4a and is magnified and imaged on the road surface after being refracted twice by the refracting surface 4b, so that the lighting function is realized.
For example, as shown in fig. 8 in the present embodiment, two reflecting mirrors 2 may be provided, and two reflecting mirrors 2 are each provided with one light source 1. Fig. 9 shows a schematic light path of light emitted from the light source corresponding to the reflector 2a, and fig. 10 shows a schematic illumination light pattern formed by light emission from the light source corresponding to the reflector 2a, which may be used as a low beam illumination light pattern. Fig. 11 shows a schematic light path of light emitted from the light source corresponding to the reflector 2b, and fig. 12 shows a schematic illumination light pattern formed by light emitted from the light source corresponding to the reflector 2b, which may be used as a curve illumination light pattern. Fig. 13 shows a schematic view of the light paths of the light sources corresponding to the reflecting mirror 2a and the reflecting mirror 2b emitting light at the same time, and fig. 14 shows a schematic view of the illumination light patterns formed by the light sources corresponding to the reflecting mirror 2a and the reflecting mirror 2b emitting light at the same time, which can be used as both the low beam illumination light patterns and the curve illumination light patterns.
Therefore, compared with the low beam illumination range of the car light illumination system in the prior art, which is generally +/-40 degrees in the front direction of the car, the car light illumination system of the embodiment can only additionally increase the curve illumination system to be used for carrying out large-angle light supplement when the car turns, and the car light illumination system of the embodiment can realize the expansion of the illumination range of the low beam light shape and even increase the curve illumination function by arranging a plurality of reflectors 2 and light sources 1 on the circumference taking the rotation axis of the refraction surface 4b of the lens 4 as the rotation center, thereby avoiding the need of additionally increasing the curve illumination system and simplifying the whole structure of the car light. In addition, the cutoff line is formed by the same light shielding plate 3 for the low beam and the curve illumination function, so that the inherent defect that the cutoff line is difficult to flush in the up-down direction due to part manufacturing and assembly errors in the existing split type curve illumination system is avoided. Furthermore, each reflector 2 of the present embodiment may be provided with only a single light source 1, and the light sources 1 emit light simultaneously to achieve the low beam lighting function, so that a plurality of light sources that must be concentrated at one place in the prior art are arranged in a dispersed manner, so that the problem of difficulty in heat dissipation caused by concentrated heating when a plurality of light sources work is avoided while the low beam lighting angle is increased, and the problem of poor focusing and difficulty in light shape control of the reflector caused by larger light emitting area when a plurality of light sources are concentrated together is also avoided.
Based on the car light lighting system, the embodiment also provides a car light assembly, and the car light assembly of the embodiment comprises the car light lighting system of the embodiment.
Based on the car light assembly, the embodiment also provides a car, and the car light assembly comprises the car.
In summary, in the lamp lighting system, the lamp assembly including the lamp lighting system and the automobile including the lamp assembly according to the present embodiment, the lens 4 has the reflecting surface 4a, the refracting surface 4b and the focal point, the cutoff line of the shade 3 is disposed at the focal point of the lens 4, the far focal point of the reflector 2 is disposed near the focal point of the lens 4, and the light source 1 is disposed near the focal point of the reflector 2, so that the light emitted by the light source 1 is reflected by the reflector 2 and then converged near the focal point of the lens 4, and is blocked by the shade 3 to form a low beam shape meeting the requirement with the cutoff line, and then is refracted, reflected and secondarily refracted by the lens 4 to be amplified and imaged on the road surface, thereby realizing the lighting function. The lens 4 changes the light path through twice refraction of the light by the refraction surface 4b and once reflection of the light by the reflection surface 4a, so that the light path changing capability of the lens 4 is obviously improved, the focal length of the lens 4 can be effectively reduced, and the chromatic dispersion phenomenon is improved.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present invention, and these modifications and substitutions should also be considered as being within the scope of the present invention.
Claims (5)
1. The car lamp lighting system is characterized by comprising a light source (1), reflecting mirrors (2, 2a,2 b), a light shielding plate (3) and a lens (4), wherein the lens (4) comprises a reflecting surface (4 a) and a refracting surface (4 b) opposite to the reflecting surface (4 a), and when external parallel rays are incident into the lens (4), the external parallel rays can sequentially pass through the refracting surface (4 b) for primary refraction, the reflecting surface (4 a) for reflection and the refracting surface (4 b) for secondary refraction and then are emitted out of the lens (4) and are converged to form a focus (4 c); the reflector (2, 2a,2 b) has a near focus and a far focus, the light source (1) is arranged at the near focus of the reflector (2, 2a,2 b), the far focus of the reflector (2, 2a,2 b) is positioned near the focus (4 c) of the lens (4), the light shielding plate (3) has a light shielding plate cut-off line which has the same shape as a cut-off line (a) of a vehicle light beam shape, and is positioned at the focus (4 c) of the lens (4), the refraction surface (4 b) is a revolution surface, the revolution surface has a revolution axis, the lens (4) has a plurality of the focuses (4 c), and all the focuses (4 c) form a focal point line (4 d) taking the revolution axis as a revolution center; the light shielding plate (3) is in an arc shape matched with the focal line (4 d) and the light shielding plate cut-off line is positioned at the focal line (4 d); light rays emitted by the light source (1) are reflected by the reflecting surfaces of the reflecting mirrors (2, 2a and 2 b) and then converged to the far focus of the reflecting mirrors (2, 2a and 2 b), and are shielded by the light shielding plate (3) to form a dipped beam light shape with a cut-off line (a) meeting requirements, and then the dipped beam light shape is injected into the lens (4), is refracted once by the refracting surface (4 b) through the lens (4), is reflected by the reflecting surface (4 a) and is magnified and imaged on a road surface after being refracted twice by the refracting surface (4 b), so that the lighting function is realized.
2. The vehicle lamp lighting system according to claim 1, characterized in that the reflecting surface (4 a) is a plane or a curved surface of revolution.
3. The vehicle lamp lighting system according to claim 1, characterized in that a plurality of the reflecting mirrors (2, 2a,2 b) are provided, all the reflecting mirrors (2, 2a,2 b) are arranged in sequence on a circumference with the rotation axis as a rotation center, a far focus of each reflecting mirror (2, 2a,2 b) is located near the focal line (4 d) of the lens (4), and each reflecting mirror (2, 2a,2 b) is provided with one of the light sources (1) respectively.
4. A vehicle lamp assembly comprising a vehicle lamp lighting system as claimed in any one of claims 1 to 3.
5. An automobile comprising the lamp assembly of claim 4.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711162012.4A CN107859968B (en) | 2017-11-21 | 2017-11-21 | Car light lighting system, car light assembly and car |
| DE112018004366.5T DE112018004366B4 (en) | 2017-11-21 | 2018-04-10 | Optical system for a car headlight, car headlight assembly, and automobile |
| PCT/CN2018/082541 WO2019100639A1 (en) | 2017-11-21 | 2018-04-10 | Automobile lighting system, automobile lighting assembly and automobile |
| US16/646,160 US11454366B2 (en) | 2017-11-21 | 2018-04-10 | Automobile lamp lighting system, automobile lamp assembly and automobile |
| JP2020528078A JP6847312B2 (en) | 2017-11-21 | 2018-04-10 | Vehicle light lighting system, vehicle light assembly and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711162012.4A CN107859968B (en) | 2017-11-21 | 2017-11-21 | Car light lighting system, car light assembly and car |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107859968A CN107859968A (en) | 2018-03-30 |
| CN107859968B true CN107859968B (en) | 2023-10-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711162012.4A Active CN107859968B (en) | 2017-11-21 | 2017-11-21 | Car light lighting system, car light assembly and car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107859968B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11454366B2 (en) | 2017-11-21 | 2022-09-27 | Hasco Vision Technology Co., Ltd. | Automobile lamp lighting system, automobile lamp assembly and automobile |
| CN108662542A (en) * | 2018-06-01 | 2018-10-16 | 江苏信利电子有限公司 | Motor vehicle dipped headlight and motor vehicle |
| CN108679574A (en) * | 2018-06-14 | 2018-10-19 | 华域视觉科技(上海)有限公司 | Car light and automobile |
| CN109827138B (en) * | 2018-07-13 | 2024-01-26 | 华域视觉科技(上海)有限公司 | Dynamic lighting control method and system for car lamp and car lamp |
| TWI770437B (en) * | 2018-11-16 | 2022-07-11 | 誠益光電科技股份有限公司 | Headlight device and bending headlight module thereof |
| CN211575020U (en) * | 2019-12-04 | 2020-09-25 | 华域视觉科技(上海)有限公司 | Lens and car light lighting system |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN107859968A (en) | 2018-03-30 |
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Address after: 201800 No. 767, Yecheng Road, Shanghai, Jiading District Applicant after: HUAYU VISION TECHNOLOGY (SHANGHAI) Co.,Ltd. Address before: 201800 No. 767, Yecheng Road, Shanghai, Jiading District Applicant before: SHANGHAI KOITO AUTOMOTIVE LAMP Co.,Ltd. |
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