CN113124376A - Car light position lamp with logo - Google Patents
Car light position lamp with logoDownload PDFInfo
- Publication number
- CN113124376A CN113124376ACN201911404110.3ACN201911404110ACN113124376ACN 113124376 ACN113124376 ACN 113124376ACN 201911404110 ACN201911404110 ACN 201911404110ACN 113124376 ACN113124376 ACN 113124376A
- Authority
- CN
- China
- Prior art keywords
- logo
- light
- lamp
- guide plate
- diaphragm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001746injection mouldingMethods0.000claimsabstractdescription8
- 239000012780transparent materialSubstances0.000claimsdescription6
- 235000009537plain noodlesNutrition0.000claimsdescription4
- 125000003003spiro groupChemical group0.000claimsdescription2
- 230000005540biological transmissionEffects0.000claims1
- 238000007789sealingMethods0.000abstractdescription5
- 238000004381surface treatmentMethods0.000abstractdescription3
- 238000002347injectionMethods0.000abstractdescription2
- 239000007924injectionSubstances0.000abstractdescription2
- 238000004519manufacturing processMethods0.000abstractdescription2
- 239000012528membraneSubstances0.000abstract1
- 238000009826distributionMethods0.000description4
- 230000000694effectsEffects0.000description4
- 238000002834transmittanceMethods0.000description4
- 238000005286illuminationMethods0.000description2
- 238000000034methodMethods0.000description2
- 238000012986modificationMethods0.000description2
- 230000004048modificationEffects0.000description2
- 238000007747platingMethods0.000description2
- 229910052782aluminiumInorganic materials0.000description1
- XAGFODPZIPBFFR-UHFFFAOYSA-NaluminiumChemical compound[Al]XAGFODPZIPBFFR-UHFFFAOYSA-N0.000description1
- 230000009286beneficial effectEffects0.000description1
- 238000010586diagramMethods0.000description1
- 238000004134energy conservationMethods0.000description1
- 229910052738indiumInorganic materials0.000description1
- APFVFJFRJDLVQX-UHFFFAOYSA-Nindium atomChemical compound[In]APFVFJFRJDLVQX-UHFFFAOYSA-N0.000description1
- 239000000243solutionSubstances0.000description1
- 238000003466weldingMethods0.000description1
Images
Classifications
- 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
- F21S43/26—Refractors, transparent cover plates, light guides or filters not provided in groups F21S43/235 - F21S43/255
- 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
- B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
- B60R13/005—Manufacturers' emblems, name plates, bonnet ornaments, mascots or the like; Mounting means 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
- F21S41/20—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
- F21S43/20—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
- 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
- F21S43/50—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights 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
- 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]
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
Description
Technical Field
The invention relates to an automobile lamp, in particular to an automobile lamp position lamp with a logo.
Background
Along with the development of the automobile field, the requirements of people on automobile lamps are not limited to functional illumination or warning, higher decorative more prominent personality is a new direction of the automobile lamp field, the accompanied logo lamp becomes the standard of future automobiles, along with the rapid development of the automobile industry, the requirements of people on energy conservation, comfort, safety and attractiveness of automobiles are higher and higher, the design of the automobile lamps is not limited to the functional illumination or warning, and higher decorative more prominent personality is a new direction of the automobile lamp field. Therefore, more and more automobile manufacturers require that the logo is embodied on the automobile lamp, but the currently known logo lamp can only be used as an automobile exterior trim for automobile identification and automobile aesthetic property enhancement, the luminous intensity of the logo lamp cannot meet the requirements of regulations, and the luminous logo cannot be defined as a lamp, so that the logo is embodied on the automobile lamp, and meanwhile, the luminous logo can serve as an automobile lamp position lamp function meeting the requirements of the regulations, and the logo is a problem which needs to be solved urgently in the automobile lamp industry.
In addition, the light emitting uniformity of the prior logo lamp needs to be further improved, and surface treatment needs to be performed on related parts, such as aluminum plating, indium plating and the like. Related parts need multicolor injection molding to embody a logo area and a non-logo area, or the shape of the logo is injection molded, the process is complex, and the product cost is increased.
Disclosure of Invention
In order to solve the problem, the invention provides a vehicle lamp position lamp with a logo.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the utility model provides a car light position lamp with logo, includes lamp body, lamp shade, sealed pad, screw and logo functional module, the screw passes logo functional module and lamp shade and lamp body spiro union in proper order, logo functional module includes logo casing, circuit board, light guide plate, diaphragm and logo lamp shade, circuit board and light guide plate are established in the logo casing, diaphragm and logo lamp shade are connected, the lamp shade is connected with the logo casing, be equipped with the LED light source on the circuit board, the diaphragm is equipped with the logo pattern.
Preferably, the connection between the diaphragm and the logo lamp shade means that the diaphragm and the logo lamp shade are formed through insert injection molding.
Preferably, the circuit board and the light guide plate are arranged in the logo shell, specifically, the circuit board and the light guide plate are in threaded connection with the logo shell.
Preferably, the logo lampshade is made of a colorless transparent material, the diaphragm is made of the colorless transparent material, a logo area and a non-logo area are printed on the diaphragm, the logo area is a vehicle logo pattern, the color is white light-transmitting color, and the light-transmitting area has light transmittance; the non-logo region may be black opaque in color.
Preferably, the back surface of the light guide plate is provided with a light incident surface, a second reflecting surface and a micro-bulge, and the front surface of the light guide plate is provided with a first reflecting surface and a light emergent surface.
Preferably, the micro-protrusions are hemispherical protrusions and are uniformly distributed.
The invention achieves the following beneficial effects:
1. the car lamp position lamp with the logo embodies the logo on an automobile lamp, and meanwhile, the luminous logo can serve as the car lamp position lamp meeting the requirements of laws and regulations.
2. The logo functional module does not need to carry out surface treatment on related parts, does not need to embody a logo area and a non-logo area by multi-color injection molding, does not need to form the shape of the logo by injection molding, only needs to print logo patterns on a diaphragm, and has simple structure and low manufacturing cost.
3. The micro-protrusions and the light incident surface are arranged on the same side of the light guide plate, so that the utilization rate of light is higher, and the uniformity of the light is better.
Drawings
FIG. 1 is a front view of one embodiment of a vehicle light position light with a logo according to the present invention;
FIG. 2 is an exploded view of one embodiment of the present invention of FIG. 1;
FIG. 3 is a sectional view taken along line A-A of FIG. 1;
FIG. 4 is a front view of the light guide plate;
FIG. 5 is a rear view of the light guide plate;
FIG. 6 is a partial enlarged view of FIG. 3 at B;
fig. 7 is a partial schematic view of the longitudinal section of fig. 4 and a light propagation diagram.
Fig. 8 shows the lighting effect of the lamp position light with logo according to the embodiment of the invention in fig. 1.
Description of the drawings: 1. logo lamp shade, 2, diaphragm, 3, light guide plate, 31, income plain noodles, 32, first plane of reflection, 33, play plain noodles, 34, second plane of reflection, 35, little arch, 4, circuit board, 5, logo casing, 41, LED light source, 6, lamp shade, 7, lamp body, 8, sealed pad, 9, screw, 101, logo functional module.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
A car lamp position lamp with a logo comprises alamp body 7, alamp shade 6, asealing gasket 8, a screw 9 and a logofunctional module 101, wherein the screw 9 sequentially penetrates through the logofunctional module 101 and thelamp shade 6 to be in threaded connection with thelamp body 7, the logofunctional module 101 comprises a logo shell 5, acircuit board 4, alight guide plate 3, adiaphragm 2 and alogo lamp shade 1, thecircuit board 4 and thelight guide plate 3 are arranged in the logo shell 5, thediaphragm 2 is connected with thelogo lamp shade 1, thelamp shade 1 is connected with the logo shell 5, anLED light source 41 is arranged on thecircuit board 4, and thediaphragm 2 is provided with a logo pattern; thediaphragm 2 is connected with thelogo lampshade 1, in particular to thediaphragm 2 and thelogo lampshade 1 are formed through insert injection molding; thecircuit board 4 and thelight guide plate 3 are arranged in the logo shell 5, and the fact that thecircuit board 4 and thelight guide plate 3 are in threaded connection with the logo shell 5; thelogo lampshade 1 is made of colorless transparent materials; the back surface of thelight guide plate 3 is provided with alight incident surface 31, a second reflectingsurface 34 and a micro-protrusion 35, and the front surface of thelight guide plate 3 is provided with a first reflectingsurface 32 and alight emitting surface 33; the micro-protrusions 35 are hemispherical protrusions and are uniformly distributed.
In specific implementation, theLED light source 41 on thecircuit board 4 emits light directly, so that light is diffused all around. The light rays diffused all around are transmitted to thefirst reflection surface 32 through thelight incident surface 31 of thelight guide plate 3, thefirst reflection surface 32 reflects a part of the light rays transmitted from thelight incident surface 31 to the surface of thesecond reflection surface 34, the reflected light rays reach thelight emitting surface 33, thelight emitting surface 33 is reflected to the micro-protrusions 35, and finally the light rays reach thelight emitting surface 33 through the reflection of the micro-protrusions 35, and the light rays are emitted from thelight emitting surface 33. Meanwhile, the first reflectingsurface 32 directly reflects another part of the light transmitted from thelight incident surface 31 onto the micro-protrusions 35, and the light reaches thelight emitting surface 33 by reflection of the micro-protrusions 35, and the light is emitted from thelight emitting surface 33. Thus, the light emitted from thelight emitting surface 33 comes from the reflected light of the micro-protrusions 35, and the light emitting efficiency is higher and the uniformity of the light is better. The uniform light passing through thelight guide plate 3 is transmitted to thefilm 2 in front of the light guide plate, and then the light is emitted from a logo area of thefilm 2 having a certain light transmittance. The light emitted from the logo area penetrates through thetransparent logo lampshade 1 to obtain the lighting effect of the logo shape.
The film is printed with a logo area and a non-logo area, the logo area is a logo pattern, the color of the logo area is white light-transmitting color, the logo area has certain light transmittance, and the color of the non-logo area is black light-transmitting. Thus, when the LED is lighted, the red logo pattern can be seen from the outside; when the LED is turned off, the internal parts can not be seen from the outside, but the white logo pattern can still be seen, so that the attractiveness of the LED is improved.
The light guide plate is a colorless transparent material, the light guide structure comprises a light incident surface, a first reflecting surface, a second reflecting surface and a light emergent surface, and the LED light source corresponds to the light incident surface in position. The micro-protrusions are regularly arranged on the surface of the light guide plate. The micro-protrusions and the light incident surface are arranged on the same side of the light guide plate, the utilization rate of light is higher, and the uniformity of the light is better. The micro-protrusions are uniformly distributed on the hemispherical surface at equal intervals. The first reflecting surface is a curved surface formed by rotation of a quadratic curve, and the circuit board is connected with a driver and a controller in the lamp body through a wiring harness; the arrangement position and angle of the LEDs on the circuit board, the luminous intensity of the LEDs and the angle range of the visible angle of the logo light-emitting surface of the logo functional module are all designed according to light distribution performance specified by a law, and the light distribution functional requirements of the car lamp position lamp are met.
Thecircuit board 4 is connected to a driver and a controller in thelamp body 7 through a wire harness.
Furthermore, the arrangement position and angle of the LEDs on thecircuit board 4, the luminous intensity of the LEDs and the angle range of the visible angle of the logo light-emitting surface of the logo functional module are all designed according to the light distribution performance specified by the law, so that the light distribution functional requirement of the car lamp position lamp is met.
As shown in fig. 2, the light guiding method of the car light position lamp with a logo specifically includes the following steps: thecircuit board 4 and thelight guide plate 3 are fixed on the logo housing 5 by screws. And thediaphragm 2 and thelogo lamp shade 1 are welded and fixed with the logo shell 5 after insert injection molding. Thecircuit board 4, thelight guide plate 3, thediaphragm 2 and thelogo lampshade 1 are sequentially arranged on the front side of the logo shell 5. The logo housing 5, thecircuit board 4, thelight guide plate 3, thediaphragm 2 and thelogo lampshade 1 are installed together to form a logo functional module. Thecircuit board 4 is connected to a driver and a controller in thelamp body 7 through a wire harness. Thelamp body 7 is preferably fixedly connected with thelampshade 6 through welding, the logo functional module and thesealing gasket 8 are fixedly installed on thelamp body 7 through screws 9, and the sealinggasket 8 is located between the logo functional module and thelamp body 7 so as to guarantee the sealing performance between the logo functional module and thelamp body 7.
When the car light is turned on, as shown in fig. 6 and 7, theLED light source 41 on the circuit board emits light directly, so that light is diffused all around, the light diffused all around is transmitted to thefirst reflection surface 32 through thelight incident surface 31 of thelight guide plate 3, thefirst reflection surface 32 reflects a part of the light transmitted from thelight incident surface 31 to the surface of thesecond reflection surface 34, the light is reflected and then reaches thelight emitting surface 33, thelight emitting surface 33 is reflected to the micro-protrusions 35, and finally the light is reflected by the micro-protrusions 35 to reach thelight emitting surface 33, and the light is emitted from thelight emitting surface 33. Meanwhile, the first reflectingsurface 32 directly reflects another part of the light transmitted from thelight incident surface 31 onto the micro-protrusions 35, and the light reaches thelight emitting surface 33 by reflection of the micro-protrusions 35, and the light is emitted from thelight emitting surface 33. Thus, the light emitted from the light emitting surface comes from the reflected light of the micro-protrusions 35, the light emitting efficiency is higher, and the uniformity of the light is better; the uniform light passing through thelight guide plate 3 is transmitted to thefilm 2 in front of the light guide plate, then the light is emitted from a logo area with certain light transmittance of thefilm 2, the light emitted from the logo area passes through thetransparent logo lampshade 1, and finally the lighting effect of the red logo pattern is obtained. Because the logo area is a logo pattern, the color of the logo area is white light-transmitting color, the logo area has certain light-transmitting rate, and the color of the non-logo area is black light-transmitting. When the LED is turned off, the internal parts can not be seen from the outside, but the white logo pattern can still be seen, so that the attractiveness of the LED is improved. Fig. 8 is a schematic view illustrating a lighting effect of the lamp position light with a logo according to the embodiment of the present invention in fig. 1.
The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (6)
1. The utility model provides a car light position lamp with logo which characterized in that: including lamp body (7), lamp shade (6), sealed pad (8), screw (9) and logo functional module (101), screw (9) pass logo functional module (11) and lamp shade (6) and lamp body (7) spiro union in proper order, logo functional module (101) are including logo casing (5), circuit board (4), light guide plate (3), diaphragm (2) and logo lamp shade (1), establish in logo casing (5) circuit board (4) and light guide plate (3), diaphragm (2) and logo lamp shade (1) are connected, lamp shade (1) are connected with logo casing (5), be equipped with LED light source (41) on circuit board (4).
2. The automotive lamp position light with logo according to claim 1, wherein: the diaphragm (2) is connected with the logo lampshade (1), and specifically means that the diaphragm (2) and the logo lampshade (1) are formed through insert injection molding.
3. The vehicle lamp position lamp with the logo according to claim 1, wherein the circuit board (4) and the light guide plate (3) are arranged in the logo shell (5) and the circuit board (4) and the light guide plate (3) are in threaded connection with the logo shell (5).
4. The automotive lamp position light with logo according to claim 1, wherein: the logo lampshade (1) is made of a colorless transparent material, the diaphragm (2) is made of the colorless transparent material, a logo area and a non-logo area are printed on the diaphragm, the logo area is a vehicle logo pattern, the color is white light-transmitting color, and the light-transmitting area has light transmission; the non-logo region may be black opaque in color.
5. The automotive lamp position light with logo according to claim 1, wherein: the back of light guide plate (3) is equipped with income plain noodles (31), second plane of reflection (34) and little protrusion (35), the front of light guide plate (3) is equipped with first plane of reflection (32) and play plain noodles (33).
6. The automotive lamp position light with logo according to claim 5, wherein: the micro-protrusions (35) are hemispherical protrusions and are uniformly distributed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911404110.3ACN113124376A (en) | 2019-12-30 | 2019-12-30 | Car light position lamp with logo |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911404110.3ACN113124376A (en) | 2019-12-30 | 2019-12-30 | Car light position lamp with logo |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113124376Atrue CN113124376A (en) | 2021-07-16 |
Family
ID=76768451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911404110.3APendingCN113124376A (en) | 2019-12-30 | 2019-12-30 | Car light position lamp with logo |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113124376A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681845A (en)* | 2019-01-25 | 2019-04-26 | 贵州长江汽车有限公司 | A kind of light guide type vehicle rule grade LOGO lamp and its light-guiding method |
| CN114228040A (en)* | 2021-12-28 | 2022-03-25 | 天津市众隆科技有限公司 | Manufacturing method of electric vehicle lamp by secondary glue pouring and injection molding |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101206280A (en)* | 2007-12-20 | 2008-06-25 | 清华大学 | Light guide plate and backlight module using the light guide plate |
| CN206679131U (en)* | 2017-03-31 | 2017-11-28 | 天津市日佳电子有限公司 | A kind of Multifunctional tail lamp |
| CN207009025U (en)* | 2017-07-05 | 2018-02-13 | 上海金标实业有限公司 | A kind of simple energy-economized environmentally friendly luminous lamp house |
| CN208886659U (en)* | 2018-09-25 | 2019-05-21 | 常州星宇车灯股份有限公司 | A kind of logo lamp that can be lighted |
| CN211176644U (en)* | 2019-12-30 | 2020-08-04 | 常州星宇车灯股份有限公司 | Car light position lamp with logo |
- 2019
- 2019-12-30CNCN201911404110.3Apatent/CN113124376A/enactivePending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101206280A (en)* | 2007-12-20 | 2008-06-25 | 清华大学 | Light guide plate and backlight module using the light guide plate |
| CN206679131U (en)* | 2017-03-31 | 2017-11-28 | 天津市日佳电子有限公司 | A kind of Multifunctional tail lamp |
| CN207009025U (en)* | 2017-07-05 | 2018-02-13 | 上海金标实业有限公司 | A kind of simple energy-economized environmentally friendly luminous lamp house |
| CN208886659U (en)* | 2018-09-25 | 2019-05-21 | 常州星宇车灯股份有限公司 | A kind of logo lamp that can be lighted |
| CN211176644U (en)* | 2019-12-30 | 2020-08-04 | 常州星宇车灯股份有限公司 | Car light position lamp with logo |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681845A (en)* | 2019-01-25 | 2019-04-26 | 贵州长江汽车有限公司 | A kind of light guide type vehicle rule grade LOGO lamp and its light-guiding method |
| CN114228040A (en)* | 2021-12-28 | 2022-03-25 | 天津市众隆科技有限公司 | Manufacturing method of electric vehicle lamp by secondary glue pouring and injection molding |
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