CN114688491A - Prevent LED from scurrying car light of light - Google Patents
Prevent LED from scurrying car light of light Download PDFInfo
- Publication number
- CN114688491A CN114688491A CN202011596047.0A CN202011596047A CN114688491A CN 114688491 A CN114688491 A CN 114688491A CN 202011596047 A CN202011596047 A CN 202011596047A CN 114688491 A CN114688491 A CN 114688491A
- Authority
- CN
- China
- Prior art keywords
- light
- led
- condenser
- lamp
- conical
- 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
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
- 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
- F21S41/37—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors characterised by their material, surface treatment or coatings
-
- 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
- F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
- F21S43/14—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
- 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
-
- 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
- F21S43/30—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by reflectors
- F21S43/33—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by reflectors characterised by their material, surface treatment or coatings
-
- 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)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
本发明提供一种防止LED窜光的车灯，包括发光组件、外灯罩、内灯罩和反射罩，内灯罩上设有一圈可透光的饰圈，内灯罩除饰圈外均不透光，发光组件包括聚光器和LED光源，电路板设于灯壳内侧底部，聚光器设于电路板上方，聚光器包括不透光的无花纹部和多个透光花纹部，每个透光花纹部下方设有一个LED光源，聚光器靠近反射罩的一侧开设有多个锥形过光口，每个锥形过光口锥角对应设于相应LED光源上方，锥形过光口侧壁涂覆有不透光材质，各LED光源照射到反射罩上的光照区域相互配合布满反射面上且互不干涉。本发明提供的一种防止LED窜光的车灯，采用增加聚光器结构，使光线能够达到相应的反射面上进行反射，而不至于传播到相邻反射面上形成亮斑。
The invention provides a vehicle lamp for preventing LED channel light, comprising a light-emitting component, an outer lamp cover, an inner lamp cover and a reflector, the inner lamp cover is provided with a light-permeable decoration ring, and the inner lamp cover is not light-transmitting except for the decoration ring. The light-emitting component includes a condenser and an LED light source, the circuit board is arranged on the inner bottom of the lamp housing, the condenser is arranged above the circuit board, and the condenser includes an opaque non-patterned portion and a plurality of light-transmitting patterned portions, each transparent pattern portion. An LED light source is arranged under the light pattern part, and a plurality of conical light-passing openings are opened on the side of the concentrator near the reflector, and the cone angle of each conical light-passing opening is correspondingly set above the corresponding LED light source, and the conical light-passing openings are arranged above the corresponding LED light sources. The side wall of the mouth is coated with an opaque material, and the illumination areas irradiated by the LED light sources on the reflector are matched with each other and cover the reflecting surface without interfering with each other. The invention provides a vehicle lamp for preventing LED channel light, which adopts the structure of adding a concentrator, so that the light can reach the corresponding reflecting surface for reflection, and will not spread to the adjacent reflecting surface to form bright spots.
Description
Technical Field
The invention relates to the technical field of automobile lamps, in particular to an automobile lamp capable of preventing light from being emitted by an LED.
Background
With the increasing requirements of customers, the automobile lamp is required to be compact and attractive in structure, and the light emission of the automobile lamp is required to be uniform and cannot generate bright spots. However, when the reflection surface is large, it is easy to cause the occurrence of the bright spot on the reflection surface of the adjacent area, and for this reason, we provide a vehicle lamp structure that prevents the occurrence of the bright spot.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: in order to overcome the defect that the light emitted by the vehicle lamp has bright spots in the prior art, the invention provides the vehicle lamp for preventing the light from being mixed by the LED.
The technical scheme adopted for solving the technical problems is as follows: a car lamp for preventing LED from channeling light comprises a light-emitting component, an outer lamp cover, an inner lamp cover and a reflecting cover, wherein the outer lamp cover and the reflecting cover are buckled with each other to form a lamp shell, the inner lamp cover is arranged on one side, close to the outer lamp cover, in the lamp shell, a circle of light-permeable decorative ring is arranged on the inner lamp cover, the inner lamp cover is non-light-permeable except the decorative ring, the light-emitting component comprises a condenser and a plurality of LED light sources arranged on a circuit board, the circuit board is arranged at the bottom of the inner side of the lamp shell, the condenser is arranged above the circuit board and comprises a non-light-permeable non-pattern part and a plurality of light-permeable pattern parts, an LED light source is arranged below each light-permeable pattern part, a plurality of conical light-passing ports arranged towards the direction of the reflecting cover are arranged on one side, close to the reflecting cover, of each conical light-passing cone angle is correspondingly arranged above the corresponding LED light source, and the side wall of each conical light-passing port is coated with a non-light-permeable material, the illumination areas of the LED light sources, which are irradiated on the reflecting cover, are matched with each other and are distributed on the reflecting surface, and are not interfered with each other.
LED light sources are arranged at different positions on the circuit board, the condenser is provided with a conical light passing port for restricting light emitted by the LED light sources, and the angles of the conical light passing ports are different, so that light rays emitted by each LED light source can only reach the corresponding reflecting surface, do not interfere with each other, and cannot generate bright spots; the purpose of arranging the light-transmitting pattern part on the condenser is mainly to uniformly diffuse the light reflected by the reflecting surface under the action of the light-transmitting pattern part and prevent bright spots from being generated on the surface of the condenser; the condenser is provided with a non-light-tight non-pattern part, so that the light of the LED light source is not light-tight when passing through the part, and bright spots are avoided; the reflected light rays penetrate through the decorative ring on the inner lamp shade after being reflected, and the special-shaped aperture is obtained.
Furthermore, patterns for uniformly diffusing light emitted by the LED light source are arranged on the reflecting surface of the reflecting cover. The reflecting surface of the reflecting cover has the function that the patterns on the surface of the reflecting cover enable light rays emitted by the LED light source to be reflected from various angles, and the structure ensures that the whole optical system has better optical performance.
Furthermore, in order to reduce the diffusion angle of the light rays emitted by the LED light source, a light receiving angle arranged towards the LED light source direction is arranged at the cone angle of the conical light passing opening.
Further, in order to avoid generating light spots on the condenser, the non-pattern part of the condenser and the side wall of the conical light passing opening are aluminized or coated with white paint. The surface of the non-pattern part defines a skin pattern and is aluminized or painted white.
Further, the condenser is made of a milk white material or a transparent material. May be made of polymethyl methacrylate or polycarbonate.
The invention has the beneficial effects that: according to the car lamp for preventing the light from being emitted by the LED, the condenser structure is added, so that light can be reflected on the corresponding reflecting surface, and can not be spread to the adjacent reflecting surface to form bright spots; the side surface of the condenser is not designed with patterns, so that the surface is opaque, bright spots are avoided, the whole optical system can have a larger reflecting surface, the bright spots are not generated, and light can be uniformly emitted.
Drawings
The invention is further illustrated by the following figures and examples.
FIG. 1 is a schematic structural diagram of a preferred embodiment of the present invention;
FIG. 2 is an enlarged schematic view of A of FIG. 1;
fig. 3 is a schematic diagram of the structure of the condenser.
In the figure: 1. the LED lamp comprises an outer lamp cover, 2 parts of an inner lamp cover, 2-1 parts of a decorative ring, 3 parts of a reflecting cover, 4 parts of a condenser, 4-1 parts of a non-pattern part, 4-2 parts of a light-transmitting pattern part, 4-3 parts of a conical light-passing opening, 4-4 parts of a light-receiving angle, 5 parts of an LED light source, 6 parts of a circuit board.
Detailed Description
The present invention will now be described in detail with reference to the accompanying drawings. This figure is a simplified schematic diagram, and merely illustrates the basic structure of the present invention in a schematic manner, and therefore it shows only the constitution related to the present invention.
As shown in fig. 1-3, the vehicle lamp for preventing light leakage of LEDs of the present invention comprises a light emitting assembly, an outer lampshade 1, an inner lampshade 2 and a reflector 3, wherein the outer lampshade 1 and the reflector 3 are fastened to form a lamp housing, the inner lampshade 2 is disposed at one side of the lamp housing close to the outer lampshade 1, a circle of transparent decorative ring 2-1 is disposed on the inner lampshade 2, the inner lampshade 2 is opaque except for the decorative ring 2-1, the light emitting assembly comprises a condenser 4 and a plurality of LED light sources 5 disposed on a circuit board 6, the circuit board 6 is disposed at the bottom of the inner side of the lamp housing, the condenser 4 is disposed above the circuit board 6, the condenser 4 comprises an opaque non-pattern portion 4-1 and a plurality of transparent pattern portions 4-2, one LED light source 5 is disposed below each of the transparent pattern portions 4-2, and one side of the condenser 4 close to the reflector 3 is provided with a plurality of tapered light passing ports 4 disposed toward the reflector 3 And 3, each cone angle of the conical light passing port 4-3 is correspondingly arranged above the corresponding LED light source 5, the side wall of the conical light passing port 4-3 is coated with an opaque material, and illumination areas of the LED light sources 5, which illuminate the reflector 3, are mutually matched and distributed on the reflecting surface and are not interfered with each other.
Patterns for uniformly diffusing the light emitted by the LED light source 5 are arranged on the reflecting surface of the reflecting cover 3.
And a light receiving angle 4-4 arranged towards the direction of the LED light source 5 is arranged at the cone angle of the conical light passing port 4-3.
The side walls of the non-pattern part 4-1 and the tapered light passing port 4-3 of the condenser 4 are aluminized or coated with white paint.
The condenser 4 is made of polymethyl methacrylate.
The working process is as follows:
the light emitted by the LED light sources 5 irradiates the reflecting surface of the reflecting cover 3 through the constraint of the conical light passing ports 4-3 on the condenser 4, and because the positions of the LED light sources 5 are different and the angles of the conical light passing ports 4-3 are different, the light emitted by each LED light source 5 can only reach the corresponding reflecting surface, does not interfere with each other and cannot generate bright spots; the light-transmitting pattern part 4-2 is arranged on the condenser 4, and the purpose is mainly to uniformly diffuse the light reflected by the reflecting surface under the action of the light-transmitting pattern part 4-2 and prevent bright spots from being generated on the surface of the condenser 4; the condenser 4 is provided with a lightproof non-pattern part 4-1, aiming at making the light of the LED light source 5 lightproof when passing through the part and avoiding generating bright spots; the reflected light rays pass through the decorative ring 2-1 on the inner lampshade 2 after being reflected, and the aperture with the special shape is obtained.
The arrows in fig. 1 indicate the light course.
Directions and references (e.g., up, down, left, right, etc.) may be used in the present disclosure only to aid in the description of features in the figures. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the claimed subject matter is defined only by the appended claims and equivalents thereof.
In light of the foregoing description of preferred embodiments in accordance with the invention, it is to be understood that numerous changes and modifications may be made by those skilled in the art without departing from the scope of the invention. The technical scope of the present invention is not limited to the contents of the specification, and must be determined according to the scope of the claims.
Claims (5)
1. The utility model provides a prevent LED from scurrying car light which characterized in that: the LED lamp comprises a light-emitting component, an outer lamp shade (1), an inner lamp shade (2) and a reflecting cover (3), wherein the outer lamp shade (1) and the reflecting cover (3) are buckled with each other to form a lamp shell, the inner lamp shade (2) is arranged on one side, close to the outer lamp shade (1), in the lamp shell, a circle of light-permeable decorative ring (2-1) is arranged on the inner lamp shade (2), the inner lamp shade (2) is not light-permeable except the decorative ring (2-1), the light-emitting component comprises a condenser (4) and a plurality of LED light sources (5) arranged on a circuit board (6), the circuit board (6) is arranged at the bottom of the inner side of the lamp shell, the condenser (4) is arranged above the circuit board (6), the condenser (4) comprises a light-impermeable non-pattern part (4-1) and a plurality of light-permeable pattern parts (4-2), and an LED light source (5) is arranged below each light-permeable pattern part (4-2), one side of the condenser (4) close to the reflector (3) is provided with a plurality of conical light passing openings (4-3) arranged towards the reflector (3), the cone angle of each conical light passing opening (4-3) is correspondingly arranged above the corresponding LED light source (5), the side wall of each conical light passing opening (4-3) is coated with a light-tight material, and the illumination areas of the LED light sources (5) irradiating the reflector (3) are mutually matched and distributed on the reflecting surface and are not interfered with each other.
2. The vehicular lamp for preventing the channeling of the LED according to claim 1, wherein: patterns for uniformly diffusing light emitted by the LED light source (5) are arranged on the reflecting surface of the reflecting cover (3).
3. The vehicular lamp for preventing the channeling of LED's as claimed in claim 1 or 2, wherein: and a light receiving angle (4-4) arranged towards the direction of the LED light source (5) is arranged at the cone angle of the conical light passing port (4-3).
4. The vehicular lamp for preventing the channeling of the LED according to claim 1, wherein: the side walls of the non-pattern part (4-1) and the conical light passing opening (4-3) of the condenser (4) are plated with aluminum or coated with white paint.
5. The vehicular lamp for preventing the channeling of the LED according to claim 1, wherein: the condenser (4) is made of milk white materials or transparent materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011596047.0A CN114688491A (en) | 2020-12-29 | 2020-12-29 | Prevent LED from scurrying car light of light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011596047.0A CN114688491A (en) | 2020-12-29 | 2020-12-29 | Prevent LED from scurrying car light of light |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114688491A true CN114688491A (en) | 2022-07-01 |
Family
ID=82132550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011596047.0A Pending CN114688491A (en) | 2020-12-29 | 2020-12-29 | Prevent LED from scurrying car light of light |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114688491A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119755552A (en) * | 2024-12-17 | 2025-04-04 | 上汽通用五菱汽车股份有限公司 | Tail lamp and vehicle |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050219858A1 (en) * | 2004-03-31 | 2005-10-06 | Koito Manufacturing Co., Ltd. | Vehicle headlamp |
| JP2014130850A (en) * | 2014-04-09 | 2014-07-10 | Koito Mfg Co Ltd | Vehicle lighting appliance unit and vehicle lighting appliance |
| KR20150072070A (en) * | 2013-12-19 | 2015-06-29 | 에스엘 주식회사 | Lamp for vehicle |
| CN206268979U (en) * | 2016-09-30 | 2017-06-20 | 马瑞利汽车零部件(芜湖)有限公司 | With slightly to the automobile day portable lighter optical system of thin fade effect |
| CN108692279A (en) * | 2017-08-29 | 2018-10-23 | 常州星宇车灯股份有限公司 | A kind of LED rear combination lamps with hood |
| CN208418573U (en) * | 2018-07-31 | 2019-01-22 | 华域视觉科技(上海)有限公司 | Realize the device of automobile lamp decorative ring speck pattern |
| CN112066336A (en) * | 2020-10-10 | 2020-12-11 | 常州星宇车灯股份有限公司 | A uniform light-emitting device with a light-shielding structure |
| CN213810422U (en) * | 2020-12-29 | 2021-07-27 | 常州星宇车灯股份有限公司 | Prevent LED from scurrying car light of light |
-
2020
- 2020-12-29 CN CN202011596047.0A patent/CN114688491A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050219858A1 (en) * | 2004-03-31 | 2005-10-06 | Koito Manufacturing Co., Ltd. | Vehicle headlamp |
| KR20150072070A (en) * | 2013-12-19 | 2015-06-29 | 에스엘 주식회사 | Lamp for vehicle |
| JP2014130850A (en) * | 2014-04-09 | 2014-07-10 | Koito Mfg Co Ltd | Vehicle lighting appliance unit and vehicle lighting appliance |
| CN206268979U (en) * | 2016-09-30 | 2017-06-20 | 马瑞利汽车零部件(芜湖)有限公司 | With slightly to the automobile day portable lighter optical system of thin fade effect |
| CN108692279A (en) * | 2017-08-29 | 2018-10-23 | 常州星宇车灯股份有限公司 | A kind of LED rear combination lamps with hood |
| CN208418573U (en) * | 2018-07-31 | 2019-01-22 | 华域视觉科技(上海)有限公司 | Realize the device of automobile lamp decorative ring speck pattern |
| CN112066336A (en) * | 2020-10-10 | 2020-12-11 | 常州星宇车灯股份有限公司 | A uniform light-emitting device with a light-shielding structure |
| CN213810422U (en) * | 2020-12-29 | 2021-07-27 | 常州星宇车灯股份有限公司 | Prevent LED from scurrying car light of light |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119755552A (en) * | 2024-12-17 | 2025-04-04 | 上汽通用五菱汽车股份有限公司 | Tail lamp and vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106257136B (en) | Vehicle lamps and related methods of manufacture | |
| KR20190128575A (en) | Automotive lighting and/or signaling device | |
| CN110469818B (en) | Lamp assembly and car lamp | |
| CN106545813B (en) | A kind of ring halo lamp | |
| CN212408415U (en) | a lamp | |
| CN111140782A (en) | Automobile atmosphere lamp | |
| CN108692279A (en) | A kind of LED rear combination lamps with hood | |
| CN213810422U (en) | Prevent LED from scurrying car light of light | |
| CN205896943U (en) | Automobile brake lamp lighting device capable of emitting light uniformly | |
| CN112361297B (en) | Automobile tail lamp with multiple light effects and method for forming various light effects | |
| US20040218399A1 (en) | Vehicle lighting device | |
| JP6629008B2 (en) | Lamp | |
| JP7383926B2 (en) | Vehicle lights | |
| CN209587944U (en) | A kind of optical system and car rear for realizing the even illumination effect of both of which for the same functional area of lamps and lanterns | |
| CN216113823U (en) | Car light assembly and vehicle | |
| CN102345811B (en) | Illumination device | |
| JP2017228463A (en) | Vehicular light guide member and vehicular lighting fixture | |
| CN114294613B (en) | Optical system with light curtain effect | |
| CN213395135U (en) | A vehicle rear combination lamp for realizing uniform illumination of brake lamps | |
| CN108224243A (en) | a downlight | |
| CN210771629U (en) | Vehicle-mounted indoor illuminating lamp structure | |
| JP2018195466A (en) | Vehicle lighting | |
| TWM604859U (en) | Car light and uniform light structure thereto | |
| WO2021057367A1 (en) | Light distribution element, light source module, and lamp | |
| CN218209354U (en) | A thick-wall light guide device with double light-emitting surfaces |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220701 |