CN110397889B - Automobile LED double-light lens headlamp - Google Patents
Automobile LED double-light lens headlamp Download PDFInfo
- Publication number
- CN110397889B CN110397889B CN201910653882.4A CN201910653882A CN110397889B CN 110397889 B CN110397889 B CN 110397889B CN 201910653882 A CN201910653882 A CN 201910653882A CN 110397889 B CN110397889 B CN 110397889B
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- led
- light source
- low beam
- lens
- splitting sheet
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- 230000003287 optical effect Effects 0.000 claims description 7
- 230000035939 shock Effects 0.000 claims description 5
- 238000005452 bending Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- NMWSKOLWZZWHPL-UHFFFAOYSA-N 3-chlorobiphenyl Chemical compound ClC1=CC=CC(C=2C=CC=CC=2)=C1 NMWSKOLWZZWHPL-UHFFFAOYSA-N 0.000 description 1
- 101001082832 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) Pyruvate carboxylase 2 Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
- F21S41/141—Light emitting diodes [LED]
-
- 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
-
- 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
- F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
-
- 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
- F21S41/50—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by aesthetic components not otherwise provided for, e.g. decorative trim, partition walls or covers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
- F21S45/40—Cooling of lighting devices
- F21S45/47—Passive cooling, e.g. using fins, thermal conductive elements or openings
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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
- F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
- F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
- F21V17/12—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by screwing
-
- 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
- F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
- F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
- F21V17/16—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting
- F21V17/164—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting the parts being subjected to bending, e.g. snap joints
-
- 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
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Abstract
The invention discloses an automobile LED double-light lens headlamp which comprises a radiator, a light source assembly, a light splitting sheet assembly and a lens assembly, wherein the light source assembly, the light splitting sheet assembly and the lens assembly are arranged on the radiator; the LED low beam light source and the LED high beam light source are arranged on the surface of the PCB, the LED low beam light source and the LED high beam light source are all provided with a plurality of LED low beam light sources, and a first concave surface is arranged on one surface of the low beam light source, which is close to the LED low beam light source, of the low beam light source. According to the invention, the first concave surface is arranged on the low beam condenser, so that light entering through the LED low beam light source is totally reflected by the surface and is transmitted to the lens below the beam splitting sheet, and no stripe is required to be made on the outer side of the lens, so that the light is invisible in appearance, and the original shape of the car light is maintained.
Description
Technical Field
The invention relates to the technical field of automobile lamps, in particular to an automobile LED double-light lens headlamp.
Background
The LED light source has the advantages of energy conservation, environmental protection, high brightness, long service life and the like, and is widely used in the automobile industry, wherein the LED headlamp is a popular research field of novel car lamps. The high-low beam integrated headlamp is focused more and more because of unique shape and compact structure, a high-low beam integrated lens module composed of high-power LED light sources is used for forming low beam light type and high beam light type through a light blocking sheet and lenses so as to meet the vehicle lighting requirement, namely GB25991-2010, and the national standard of the LED headlamp for automobiles, (1) the brightness at 50L and 75L is particularly limited, namely 75L is less than or equal to 15lx,50L is less than or equal to 12lx, and the traditional scheme is to bend the 50L and 75L on the light blocking sheet so as to meet the regulation requirement, but the bending times of the low beam are too much, and the integrity of the low beam can not be ensured; (2) In order to see the guideboard clearly, the requirement on the area III has certain intensity, as the light rays of the dipped beam are below the cut-off line, in order to make the light to the area III of the cut-off line, stripes are usually made on the lens, and the light is deflected upwards to the area III, but the appearance of the lens needs to be changed, so that the shape of the lens is influenced.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems in the related art to some extent. Therefore, an object of the present invention is to provide an automotive LED double-light lens headlamp, which uses different methods to achieve 50L and 75L light to the national standard, can ensure the integrity of the low beam, and does not affect the shape of the lens.
The automobile LED double-light lens headlamp comprises a radiator, and a light source assembly, a light splitting sheet assembly and a lens assembly which are arranged on the radiator, wherein a PCB (printed circuit board) is arranged on the surface of the radiator;
the LED low beam light source and the LED high beam light source are arranged on the surface of the PCB, the LED low beam light source and the LED high beam light source are corresponding to the LED low beam light source and the LED high beam light source, a plurality of LED low beam light sources and a plurality of LED high beam light sources are arranged, and a first concave surface is arranged on one surface of the low beam light source, which is close to the LED low beam light source, of the low beam light source;
the light splitting sheet assembly comprises a light splitting sheet support, a supporting plate is clamped on the light splitting sheet support, and a light splitting sheet is riveted on the supporting plate;
the lens assembly comprises a lens support, the beam splitting sheet support is clamped with the inner side of the lens support, a lens is clamped at the top of the lens support, and the lens support wraps the whole light source assembly and the beam splitting sheet assembly and is fixedly connected to the radiator through screws.
Preferably, the first concave surface is a bowl-shaped optical surface with a trapezoid cross section, and the first concave surface is positioned at the lower part of the III-zone condensing point on the low beam condenser.
Preferably, a second concave surface and a third concave surface are arranged on one side, far away from the LED low beam light source, of the low beam condenser, and the second concave surface and the third concave surface are elliptical and are respectively positioned at a 50L collecting point and a 75L collecting point.
Preferably, the both ends and the middle part of passing light concentrator and far beam concentrator all are equipped with the installation piece, be equipped with the screw hole on the installation piece, the screw has been cup jointed to the screw hole on the screw hole, passing light concentrator and passing light concentrator are all fixed on the radiator through the cooperation of screw hole and screw.
Preferably, the first concave surface totally reflects the LED low beam light source and passes through the lower part of the light splitting sheet to be hit on the lens.
Preferably, the radiator is provided with a plurality of radiating fins, and the radiating fins and the radiator are integrally formed.
Preferably, the light splitting sheet is located in the middle of the whole car lamp.
Preferably, at least two shock pads are arranged on the bottom of the light-splitting sheet, and the shock pads correspond to the supporting plate.
The beneficial effects of the invention are as follows:
(1) The first concave surface is arranged on the low beam condenser, so that light entering through the LED low beam light source is totally reflected by the surface and is transmitted to the lens through the lower part of the beam splitting sheet, and stripes do not need to be made on the outer side of the lens, so that the light is invisible in appearance, and the original shape of the car light is maintained.
(2) By arranging the second concave surface and the third concave surface which correspond to the 50L and the 75L, light which is originally transmitted to the 50L and the 75L through the low beam condenser, the beam splitting sheet and the lens is scattered on the optical surfaces of the second concave surface and the third concave surface, so that the problem of superbright regulation is solved, the process of bending the beam splitting sheet at the 50L and the 75L is avoided, the integrity of the low beam is ensured, and the times of optical corners are reduced.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
fig. 1 is a schematic structural diagram of an automotive LED double-lens headlamp according to the present invention;
FIG. 2 is an exploded view of a structure of an automotive LED bi-optic lens headlamp according to the present invention;
FIG. 3 is a cross-sectional view of FIG. 1 of the present invention;
FIG. 4 is a schematic view of a first concave surface of an automotive LED bi-optic lens headlamp according to the present invention;
FIG. 5 is a schematic view of a second concave surface and a third concave surface of an automotive LED bi-optic lens headlamp according to the present invention;
FIG. 6 is a light path diagram of a III region of an automotive LED double-light lens headlamp according to the present invention;
fig. 7 is a 50L and 75L light path diagram of an automotive LED double-lens headlamp according to the present invention.
In the figure: 1 radiator, 2 PCB board, 3 LED low beam light source, 4 LED far beam light source, 5 low beam light concentrator, 6 far beam light concentrator, 7 first concave surface, 8 beam splitter support, 9 backup pad, 10 beam splitter, 11 lens support, 12 lens, 13 second concave surface, 14 third concave surface, 15 installation piece, 16 screw holes, 17 screw, 18 fin.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Examples of the embodiments are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements throughout or elements having like or similar functionality. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", 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 device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore 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 a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the 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.
Referring to fig. 1-7, an automotive LED double-light lens headlamp comprises a radiator 1, and a light source assembly, a light splitting sheet assembly and a lens assembly which are mounted on the radiator 1, wherein a PCB board 2 is mounted on the surface of the radiator 1, a plurality of radiating sheets 18 are arranged on the radiator 1, the radiating sheets 18 and the radiator 1 are integrally formed, and the radiator 1 is used for fixing the whole lens assembly and radiating lights of a car lamp;
the light source assembly comprises an LED low beam light source 3 and an LED high beam light source 4 which are arranged on the surface of the PCB 2, and a low beam light condenser 5 and a high beam light condenser 6 which correspond to the LED low beam light source 3 and the LED high beam light source 4, wherein a plurality of LED low beam light sources 3 and LED high beam light sources 4 are arranged, and one surface of the low beam light condenser 5 close to the LED low beam light source 3 is provided with a first concave surface 7;
as shown in fig. 6, the first concave surface 7 is a bowl-shaped optical surface with a trapezoidal cross section, and the first concave surface 7 is located at the lower part of the iii-zone light collecting point on the low beam condenser 5, so that the light entering through the LED low beam light source 3 is totally reflected by the surface and passes through the lower part of the beam splitter 10 to be transmitted to the lens 12, and no stripe is required to be made on the outer side of the lens, so that the first concave surface 7 is invisible in appearance, and the original shape of the car lamp is maintained;
as shown in fig. 7, a second concave surface 13 and a third concave surface 14 are disposed on a side of the low beam condenser 5 far from the LED low beam light source 3, and the second concave surface 13 and the third concave surface 14 are both elliptical and are respectively located at a 50L collecting point and a 75L collecting point, so that the light which is originally transmitted to the 50L and 75L through the low beam condenser 5, the beam splitter 10 and the lens 12 is scattered on the optical surfaces of the second concave surface 13 and the third concave surface 14, thereby solving the problem of ultra-bright regulations, avoiding the process of bending the beam splitter 10 at the 50L and 75L, ensuring the integrity of the low beam light, and reducing the times of optical corners;
the two ends and the middle parts of the low beam condenser 5 and the high beam condenser 6 are respectively provided with a mounting block 15, the mounting blocks 15 are provided with threaded holes 16, the threaded holes 16 are sleeved with screws 17 in a threaded manner, and the low beam condenser 5 and the low beam condenser 6 are respectively fixed on the radiator 1 through the cooperation of the threaded holes 16 and the screws 17;
the light splitting sheet assembly comprises a light splitting sheet support 8, a supporting plate 9 is clamped on the light splitting sheet support 8, a light splitting sheet 10 is riveted on the supporting plate 9, the light splitting sheet 10 is positioned in the middle of the whole car lamp, at least two shock pads are arranged on the bottom of the light splitting sheet 10, and correspond to the supporting plate 9, so that the light splitting sheet 10 is better protected, and damage to the light splitting sheet 10 caused by vibration is prevented;
the lens assembly comprises a lens support 11, the light splitting sheet support 8 is clamped with the inner side of the lens support 11, a lens 12 is clamped at the top of the lens support 11, and the lens support 11 wraps the whole light source assembly and the light splitting sheet assembly and is fixedly connected to the radiator 1 through screws.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (5)
1. An automobile LED double-light lens headlamp is characterized in that: the LED lamp comprises a radiator, a light source assembly, a light splitting sheet assembly and a lens assembly, wherein the light source assembly, the light splitting sheet assembly and the lens assembly are arranged on the radiator, and a PCB (printed circuit board) is arranged on the surface of the radiator;
the LED low beam light source and the LED high beam light source are arranged on the surface of the PCB, the LED low beam light source and the LED high beam light source are corresponding to the LED low beam light source and the LED high beam light source, a plurality of LED low beam light sources and a plurality of LED high beam light sources are arranged, and a first concave surface is arranged on one surface of the low beam light source, which is close to the LED low beam light source, of the low beam light source;
the light splitting sheet assembly comprises a light splitting sheet support, a supporting plate is clamped on the light splitting sheet support, and a light splitting sheet is riveted on the supporting plate;
the lens assembly comprises a lens support, the light splitting sheet support is clamped with the inner side of the lens support, a lens is clamped at the top of the lens support, and the lens support wraps the whole light source assembly and the light splitting sheet assembly and is fixedly connected to the radiator through screws;
the first concave surface is a bowl-shaped optical surface with a trapezoid cross section and is positioned at the lower part of a III-zone condensing point on the low beam condenser;
the side, far away from the LED low beam light source, of the low beam condenser is provided with a second concave surface and a third concave surface which are elliptical and are respectively positioned at a 50L collecting point and a 75L collecting point;
the first concave surface is used for carrying out total reflection on the LED dipped beam light source and is arranged on the lens below the light splitting sheet.
2. The automotive LED bi-optic lens headlamp of claim 1, wherein: the low beam condenser and the high beam condenser are both provided with mounting blocks at the two ends and the middle part, threaded holes are formed in the mounting blocks, screws are sleeved on the threaded holes in a threaded mode, and the low beam condenser are fixed to the radiator through the threaded holes and the screws.
3. The automotive LED bi-optic lens headlamp of claim 1, wherein: the radiator is provided with a plurality of radiating fins, and the radiating fins and the radiator are integrally formed.
4. The automotive LED bi-optic lens headlamp of claim 1, wherein: the beam splitting sheet is positioned in the middle of the whole car lamp.
5. The automotive LED bi-optic lens headlamp of claim 1, wherein: at least two shock pads are arranged at the bottom of the light splitting sheet, and the shock pads correspond to the supporting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910653882.4A CN110397889B (en) | 2019-07-19 | 2019-07-19 | Automobile LED double-light lens headlamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910653882.4A CN110397889B (en) | 2019-07-19 | 2019-07-19 | Automobile LED double-light lens headlamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110397889A CN110397889A (en) | 2019-11-01 |
| CN110397889B true CN110397889B (en) | 2024-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910653882.4A Active CN110397889B (en) | 2019-07-19 | 2019-07-19 | Automobile LED double-light lens headlamp |
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| Country | Link |
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| CN (1) | CN110397889B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211694701U (en) | 2020-01-20 | 2020-10-16 | 华域视觉科技(上海)有限公司 | Headlamp optical element, headlamp module, lamp and vehicle |
| CN211875915U (en) * | 2020-01-20 | 2020-11-06 | 华域视觉科技(上海)有限公司 | Light screen, short-distance beam optical module, short-distance beam lighting module, car light and vehicle |
| CN112781003A (en) | 2020-06-09 | 2021-05-11 | 华域视觉科技(上海)有限公司 | Headlamp optical assembly, lighting device, headlamp and vehicle |
| CN112856324A (en) * | 2021-01-18 | 2021-05-28 | 南京缤致光电科技有限公司 | Lighting module for LED light source of motor vehicle headlamp |
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