WO2022166139A1 - Élément optique de lampe de véhicule, dispositif d'éclairage de lampe de véhicule, lampe de véhicule et véhicule - Google Patents

Élément optique de lampe de véhicule, dispositif d'éclairage de lampe de véhicule, lampe de véhicule et véhicule Download PDF

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Publication number
WO2022166139A1
WO2022166139A1 PCT/CN2021/110336 CN2021110336W WO2022166139A1 WO 2022166139 A1 WO2022166139 A1 WO 2022166139A1 CN 2021110336 W CN2021110336 W CN 2021110336W WO 2022166139 A1 WO2022166139 A1 WO 2022166139A1
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WIPO (PCT)
Prior art keywords
light
vehicle
optical
optical element
light guide
Prior art date
Application number
PCT/CN2021/110336
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English (en)
Chinese (zh)
Inventor
李聪
仇智平
刘方
张大攀
祝贺
桑文慧
Original Assignee
华域视觉科技(上海)有限公司
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Publication of WO2022166139A1 publication Critical patent/WO2022166139A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • 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
    • F21S41/19—Attachment of light sources or lamp holders
    • 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
    • F21S41/24—Light guides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/19—Attachment of light sources or lamp holders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • 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

Definitions

  • the invention relates to a vehicle lamp structure, in particular to a vehicle lamp optical element. In addition, it also relates to a vehicle lamp lighting device, a vehicle lamp and a vehicle.
  • automotive lighting devices are generally used for automotive headlight lighting, and include light sources, automotive lighting components, and other components.
  • the optical element of the headlight can distribute the light emitted by the light source (such as focusing, collimation, etc.), and therefore, the optical element of the headlight has a significant influence on the lighting effect of the headlight.
  • the optical components of the existing car lights are generally made of polycarbonate (PC) material or polymethyl methacrylate (PMMA) material. Although the reliability of the installation can be guaranteed, the heat resistance is relatively poor. The light incident end of the optical element is close to the light source, and the optical element of the car light is easily deformed by heat after long-term use, and even the optical element of the car light is burned out, thus affecting the optical performance of the optical element of the car light.
  • PC polycarbonate
  • PMMA polymethyl methacrylate
  • the technical problem to be solved by the present invention is to provide an optical element of a vehicle light, which has good heat resistance, is stable and reliable in installation, and ensures optical performance.
  • a further technical problem to be solved by the present invention is to provide a vehicle lamp lighting device with better optical performance.
  • the further technical problem to be solved by the present invention is to provide a vehicle lamp with better optical performance.
  • the technical problem to be solved by the present invention is to provide a vehicle with better optical performance.
  • the present invention provides an optical element for a vehicle light, comprising an optical main body and a mounting seat for mounting the optical main body, the optical main body and the mounting seat are integrally formed parts, and the optical main body is The high temperature resistant and light transmitting material molding is provided, and the mounting seat is a plastic molding.
  • the mounting seat is a first mounting structure, and the first mounting structure is fitted with the optical body through a fitting structure.
  • the fitting structure includes a fitting hole disposed on one of the first installation structure and the optical body and a fitting portion on the other.
  • the optical body includes a plurality of light-condensing units arranged linearly.
  • the mounting seat is a second mounting structure
  • the left and right side surfaces and the upper surface of the optical body are integrated with the accommodating holes of the second mounting structure
  • the lower surface thereof is integrated with the second mounting structure through holes are formed between them.
  • the optical main body includes a light guide portion and a fused light emitting portion connected to the light guide portion, and the thickness of the fused light emitting portion in the up-down direction is greater than the thickness of the light guiding portion in the up-down direction.
  • the light guide portion includes a plurality of linearly arranged light guide columns, and the light exit end of each of the light guide columns is connected to the light entrance end of the merged light exit portion.
  • each of the light guide columns includes two side light guide columns and at least one middle light guide column.
  • the outer side surface of the light column is arranged to extend outward from the rear to the front and extend to the fusion light part.
  • the optical body is made of silica gel
  • the mount is made of PC or PMMA.
  • the invention also discloses a vehicle lamp lighting device, comprising the vehicle lamp optical element described in any one of the above technical solutions.
  • the invention also discloses a vehicle lamp, comprising the vehicle lamp lighting device according to any one of the above technical solutions.
  • the present invention also discloses a vehicle, including the vehicle lamp according to the above technical solution.
  • the optical body and the mounting seat of the optical element of the vehicle light in the prior art are made of a single material.
  • the preparation material is silica gel
  • the structural rigidity of the silica gel material is relatively weak, which easily affects the installation accuracy and has low reliability;
  • the material is made of plastic, although the installation reliability can be improved, relatively speaking, the high temperature resistance of plastic is poor.
  • the light incident end of the optical body is close to the light source, after a certain period of use, the heat generated by the light source is easy to cause.
  • the optical body is deformed or even burned out, thereby affecting the optical performance.
  • the present invention adopts different materials for the optical body and the mounting seat respectively. While the installation is reliable, the impact of high temperature on the optical main body is reduced, and the overall optical performance is ensured; moreover, there is no need to find new materials with high weather resistance and high temperature resistance, and the existing materials are used to effectively save costs.
  • Fig. 1 is one of the three-dimensional structural schematic diagrams of the optical element of the vehicle light according to the first specific embodiment of the present invention
  • FIG. 2 is the second schematic diagram of the three-dimensional structure of the optical element of the vehicle light according to the first specific embodiment of the present invention
  • FIG 3 is one of the structural schematic diagrams of the optical element of the vehicle light according to the first specific embodiment of the present invention.
  • FIG. 4 is an exploded schematic view of the optical element of the vehicle light according to the first specific embodiment of the present invention, it is assumed that the optical body and the mounting seat are separated, in fact, the two are integrally formed and cannot be separated without damage;
  • FIG. 5 is a schematic structural diagram of a first installation structure according to a first specific embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of an optical body according to a first specific embodiment of the present invention.
  • Fig. 7 is the second structural schematic diagram of the optical element of the vehicle light according to the first specific embodiment of the present invention.
  • Fig. 8 is the sectional view along the A-A direction in Fig. 7;
  • FIG. 9 is the third structural schematic diagram of the optical element of the vehicle light according to the first specific embodiment of the present invention.
  • Figure 10 is a sectional view along the B-B direction in Figure 9;
  • FIG. 11 is a cross-sectional view of a vehicle lamp lighting device according to a specific embodiment of the present invention.
  • FIG. 13 is the second schematic diagram of the three-dimensional structure of the optical element of the vehicle light according to the second embodiment of the present invention.
  • Figure 15 is a cross-sectional view along the C-C direction in Figure 14;
  • 16 is the second structural schematic diagram of the optical element of the vehicle light according to the second specific embodiment of the present invention.
  • Figure 17 is a cross-sectional view along the D-D direction in Figure 16;
  • FIG. 18 is a schematic three-dimensional structural diagram of an optical main body support according to a third specific embodiment of the present invention.
  • 19 is an exploded schematic view of the optical element and the optical main body bracket of the vehicle light according to the third embodiment of the present invention.
  • 20 is a schematic diagram of the assembly structure of the optical element of the vehicle light and the optical main body bracket according to the third embodiment of the present invention.
  • FIG. 21 is a cross-sectional view taken along the direction E-E in FIG. 20 .
  • the azimuth or positional relationship indicated by terms such as “front, rear, up, down, left and right” is based on the fact that the optical element of the vehicle light of the present invention is normally installed on the The orientation or positional relationship to the rear of the vehicle.
  • the direction indicated by the term “front” is the normal driving direction of the vehicle; the term is based on the orientation or positional relationship shown in the drawings, rather than indicating or implying that the referred device or element must have a specific orientation, a specific orientation, and a specific orientation. Therefore, the azimuth structure and operation should not be construed as a limitation of the present invention; the azimuth terminology of the optical element of the vehicle light of the present invention should be understood in conjunction with the actual installation state.
  • connection may be a fixed connection, or It can be a detachable connection or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication of two elements or an interaction relationship between the two elements.
  • connection may be a fixed connection, or It can be a detachable connection or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication of two elements or an interaction relationship between the two elements.
  • the optical component of the vehicle light includes an optical body and a mounting seat for mounting the optical body.
  • the optical main body is a high-temperature resistant and light-transmitting material molding
  • the mounting seat is a plastic molding.
  • the optical body of the present invention is made of high-temperature resistant light-transmitting material, and the high-temperature resistant light-transmitting material enables the optical body to have better high temperature resistance performance, reduces the influence of the light source on the optical body, and prevents the deformation or even burnout of the optical body caused by high temperature,
  • the mounting seat is made of plastic, which has relatively good structural rigidity.
  • the optical body is installed on the mounting seat, and the mounting seat is connected with other structures in the lamp to effectively ensure the installation accuracy of the optical body; compared with the existing single
  • the optical element of the vehicle light prepared from the material has not only good installation reliability, but also good high temperature resistance performance, and the optical performance is effectively guaranteed.
  • the high-temperature resistant and light-transmitting material may be a material such as silica gel or glass
  • the plastic may be a material such as polycarbonate (PC) or polymethyl methacrylate (PMMA).
  • PC polycarbonate
  • PMMA polymethyl methacrylate
  • silicone materials have better optical properties and heat resistance
  • plastics such as PC or PMMA have better structural rigidity than silicone materials.
  • optical element of the vehicle light of the present invention are various.
  • Figures 1 to 8 show a specific structural form of the optical element of the car light
  • the mounting base is the first mounting structure 1
  • the optical body can be composed of a plurality of light-condensing units 3 linearly arranged.
  • the units 3 are arranged in sequence along the left and right directions, and the light incident surfaces of the light collecting units 3 are connected into an integrated structure.
  • the shape of the curved surface can be freely set according to the required shape of the pixel light shape, and specifically can be set as a spherical surface, or can be set as an ellipsoid surface or a free-form surface. Referring to FIG.
  • the left and right widths of the light emitting surfaces of the light collecting units 3 gradually increase from one side to the other side, that is, the distance between the light sources 71 gradually increases from one side to the other side.
  • the width of the light shape of the pixel close to the front of the vehicle is smaller, and the width of the light shape of the pixel far from the front of the vehicle is larger.
  • the portion of the formed illumination light pattern close to the front of the vehicle has a relatively high pixel resolution
  • the portion of the illumination light pattern away from the front of the vehicle has a relatively low pixel resolution.
  • the ADB function when the ADB function is implemented, when a certain high-beam light source 71 is turned off, the lighting dark area formed directly in front of the vehicle is small, while the lighting dark area formed on the side of the vehicle is larger, which can reduce the lighting dark area for driving safety. Impact.
  • each concentrating unit 3 can be arranged in the middle of the first installation structure 1, and the first installation structure 1 is fitted with the optical main body through a fitting structure;
  • the structure includes a fitting portion 22 and a fitting hole 21.
  • a mounting hole is formed in the middle of the first mounting structure 1, and at least one fitting hole 21 is formed at the periphery of the mounting hole.
  • the optical body At least one fitting portion 22 is formed on the periphery of the optic, so that the first mounting structure 1 and the optical body can be fitted together;
  • the position on the main body can also be changed, mainly to realize the fitting of the first installation structure 1 and the optical main body; moreover, the installation positions of the fitting part 22 and the fitting hole 21 can also be exchanged, that is, fitting The hole 21 is provided on the optical body, and the fitting portion 22 is provided on the first mounting structure 1 .
  • the contact area between the first installation structure 1 and the optical body can be increased, so as to improve the bonding strength between the two.
  • the optical body can also be arranged at other positions on the first installation structure 1, such as the upper part, the lower part, and the like.
  • Figures 10 to 15 show another specific structural form of the optical element of the vehicle light, wherein the mounting seat is the second mounting structure 4, and the second mounting structure 4 is formed with an accommodating hole, refer to Figures 11, 13 and 15, the left side, right side and upper surface of the optical body are all connected with the accommodating hole of the second installation structure 4, and a gap is left between the lower surface of the optical body and the second installation structure 4 to form a through hole 41 , other components can be inserted into the through hole 41 to further enhance the support for the optical body.
  • Two sides of the second mounting structure 4 are provided with mounting plates, and mounting holes can be provided on the mounting plates, through which the optical components of the vehicle light can be mounted on other parts, such as a radiator.
  • the optical body includes a light guide portion 5 and a fusion light exit portion 6 , the light exit end of the light guide portion 5 is connected to the light entrance end of the fusion light exit portion 6 , and the thickness of the fusion light exit portion 6 along the up-down direction is greater than that of the light guide portion 5 along the up-down direction. thickness of.
  • the light emitted by the light source is incident into the fusion light part 6 through the light guide part 5 , and the fusion light part 6 can fuse the light transmitted to the fusion light part 6 and then exit. Since the thickness of the fusion light-emitting portion 6 is increased, the light emitted from the light-emitting surface thereof is more diffused, which is beneficial to the softening of the light shape below the upper boundary of the light shape.
  • the fusion effect of the fusion light part 6 refers to the fusion of the light transmitted to the fusion light part 6 and then transmitted to the light emitting surface thereof.
  • the light guide portion 5 includes a plurality of linearly arranged light guide columns, and the light exit end of each light guide column is connected to the light entrance end of the merged light exit portion 6 .
  • each light guide column includes two side light guide columns 51 and at least one middle light guide column 52.
  • the at least one middle light guide column 52 is sequentially arranged between the two side light guide columns 51 along the left-right direction.
  • the outer side is arranged to extend from the back to the front and outward to the fusion light portion 6.
  • the outer side of the side light guide column 51 is set to go forward in a straight line from the rear end of the side light guide column 51. Extend, and then bend outward along the curve to extend to the rear side of the fusion light-emitting part 6 .
  • the outer side of the side light guide column 51 specifically refers to the side of the side light guide column 51 away from the middle light guide column 52 .
  • the outer side of the side light guide column 51 on the left side is the left side of the side light guide column 51 side.
  • Each light guide column is arranged in order along the left and right direction, so that the optical body can meet the requirements of the miniaturization and flat structure design of the lamp shape.
  • the outer side of the side light guide column 51 is set to extend straight forward from the rear end. , and then bend to the outside along the curve and extend to the rear side of the fusion light emitting part 52, so that the outer contour of the side light guide column 51 is gradually curved to both sides, which can increase the illumination range on both sides of the light shape and improve the light shape effect.
  • the structure of the second installation structure 4 can be changed to form another specific structural form of the optical element of the headlight shown in FIG. 17 .
  • the main difference between the two is that, in the embodiment of FIG. 17, the second mounting structure 4 has removed the mounting plates on both sides, and is provided with a card slot 42 on its side wall, which can be snapped together with the optical main body bracket 9,
  • the two form a vehicle light optical component assembly. 16 , an optical main body accommodating cavity is formed on the optical main body support 9, and a plurality of regular prismatic through holes whose cross-sectional circumference gradually increases from the back to the front are arranged on the rear end of the optical main body accommodating cavity.
  • the rear end opening of the mesa-shaped through hole is set as a light guide column limit hole 91 that can limit the light guide column.
  • the light guide column can be inserted into the corresponding guide column. in the beam limiting hole 91 .
  • the limiting hole 91 of the light guide rod can limit the position of the corresponding light guide rod, so as to ensure the positional accuracy of the light guide port at the rear end of the light guide rod relative to the light source.
  • the number of regular prismatic through holes is greater than or equal to the number of light guide columns.
  • a supporting plate 92 is provided in the optical main body accommodating cavity, and the supporting plate 92 can be inserted between the lower surface of the optical main body and the second installation structure 4 In the through hole 41 formed, the fusion light part 6 is supported on the support plate 92.
  • the fusion light portion 6 is supported on the support plate 92, so that the mounting connection between the optical main body and the optical main body bracket 9 is more stable, thereby improving the optical efficiency of the optical main body.
  • the optical main body bracket 9 is provided with a clamping block 94 that can cooperate with the clamping slot 42 , so that the optical main body bracket 9 and the second installation structure 4 are two
  • the second installation structure 4 may not be provided with the card slot 42, and the structure with the installation plate shown in FIG. 10 is formed, and the second installation structure 4 and the optical main body bracket 9 are fastened by screws connect.
  • the anti-sunlight focusing plate 93 is arranged on the optical main body bracket 9 .
  • the anti-sunlight focusing plate 93 is preferably made of metal material, such as ADC material, which is not only lightweight and economical, but also has good thermal conductivity.
  • the optical body and the mounting seat of the vehicle light optical element of the present invention are not limited to the specific structural forms described in the above embodiments, and can also be For other structural forms, as long as the optical main body is made of high temperature resistant light-transmitting material and the mounting seat is made of plastic, the optical element of the vehicle light of the present invention can achieve better high temperature resistance performance and better installation reliability purpose can be.
  • the optical body is made of silicone or glass
  • the mount is made of PC or PMMA.
  • the optical element of the vehicle light of the present invention can be applied to the vehicle lamp lighting device, for example, referring to FIG.
  • the light emitted by the light source 71 is directed to the lens 82 through the condensing unit 3 .
  • the optical body (especially the light incident surface) is placed close to the LED, so that it is more heated.
  • the optical body is made of silicone material, which has good heat resistance.
  • the first installation structure 1 is made of PC or PMMA. , the structural rigidity is good, and the optical performance of the lamp can be effectively guaranteed.
  • the present invention also provides a vehicle lamp, wherein the vehicle lamp lighting device according to the above technical solution is installed in the vehicle lamp. Since the vehicle lamp lighting device is installed with the vehicle lamp optical element of the present invention, it also has the same beneficial effects as the vehicle lamp optical element described above.
  • the present invention also provides a vehicle in which the vehicle lamp according to the above technical solution is installed. Since the vehicle lamp optical element of the present invention is installed in the vehicle lamp, it also has the same beneficial effect as the aforementioned vehicle lamp optical element.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Engineering (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

La présente invention concerne une structure de lampe de véhicule, et concerne un élément optique de lampe de véhicule, une lampe de véhicule et un véhicule. L'élément optique de lampe de véhicule comprend un corps optique et une base de montage pour monter le corps optique. Le corps optique et la base de montage sont des parties formées d'un seul tenant, le corps optique est une partie constituée d'un matériau transmettant la lumière à haute résistance à la température, et la base de montage est une partie constituée de plastique L'élément optique de lampe de véhicule de la présente invention présente une meilleure résistance à la chaleur, est stable et fiable dans l'installation, et assure des performances optiques.
PCT/CN2021/110336 2021-02-05 2021-08-03 Élément optique de lampe de véhicule, dispositif d'éclairage de lampe de véhicule, lampe de véhicule et véhicule WO2022166139A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202120344461.6 2021-02-05
CN202120344461.6U CN214536006U (zh) 2021-02-05 2021-02-05 车灯光学元件、车灯照明装置、车灯及车辆

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WO2022166139A1 true WO2022166139A1 (fr) 2022-08-11

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CN1638940A (zh) * 2002-03-01 2005-07-13 奥洛法内股份有限公司 带有玻璃透镜和塑料的透镜支架的照射灯,以及将支架复合模制到透镜上的复合模制工具
US20080087908A1 (en) * 2006-09-27 2008-04-17 Osram Opto Semiconductors Gmbh Optical element and optoelectronic component comprising such an optical element
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CN105659024A (zh) * 2013-10-28 2016-06-08 齐扎拉光系统有限责任公司 用于机动车前大灯用的光具本体的夹持装置
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CN109237348A (zh) * 2017-07-11 2019-01-18 法雷奥北美有限公司 双材料传输光学元件
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CN210740267U (zh) * 2019-11-13 2020-06-12 华域视觉科技(上海)有限公司 一种初级光学元件、前照灯模组、车灯及车辆

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