CN116336408B - Optical system and vehicle light - Google Patents
Optical system and vehicle lightInfo
- Publication number
- CN116336408B CN116336408B CN202111586386.5A CN202111586386A CN116336408B CN 116336408 B CN116336408 B CN 116336408B CN 202111586386 A CN202111586386 A CN 202111586386A CN 116336408 B CN116336408 B CN 116336408B
- Authority
- CN
- China
- Prior art keywords
- light
- semi
- light guide
- guide plate
- reflecting
- 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.)
- Active
Links
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
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/24—Light guides
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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
- F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
- F21S41/32—Optical layout thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
- F21W2102/10—Arrangement or contour of the emitted light
- F21W2102/13—Arrangement or contour of the emitted light for high-beam region or low-beam region
-
- 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)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention relates to the technical field of LEDs, and particularly discloses an optical system which comprises an upper semi-reflecting and semi-transmitting plate, a lower semi-reflecting and semi-transmitting plate and a light guide plate, wherein the main materials of the two semi-reflecting and semi-transmitting plates are PMMA/PC, semi-reflecting and semi-transmitting films are respectively attached to the two semi-reflecting and semi-transmitting plates, 50% of energy is transmitted, 50% of the energy is reflected, the light guide plate is positioned between the two semi-reflecting and semi-transmitting films, surface microstructures are added on the upper light emitting surface and the lower light emitting surface of the light guide plate, and the light inlet end of the light guide plate is also simultaneously added with the microstructures. Light emitted by the LEDs enters the light guide plate through the light inlet end, the micro-structure part of the light inlet end is added with dermatoglyph for further diffusing light, the light enters the light guide and then further diffuses at the optical structure of the lower beam end, so that light is uniformly mixed before the light outlet surface of the light guide plate, the light can be transmitted to the tail end of the light guide plate, and a part of the light is totally reflected back and forth on the upper layer and the lower layer of the light guide plate until collision with the micro-structure of the upper layer and the lower layer, so that the part of light breaks the totally reflected light, and the 360-degree uniform light outlet effect of the whole space is achieved.
Description
Technical Field
The field relates to the technical field of LEDs, in particular to an optical system and a car lamp.
Background
Along with the rapid development of automobile lamp technology, the requirements of whole automobile customers on the appearance of the automobile lamp are higher and higher, the requirements of diversification, miniaturization and layering of the automobile lamp are urgent and urgent, and the LED has the advantages of small luminous area, high light energy utilization rate, high design freedom degree and more common application on the automobile lamp. With the stricter requirements of lamp modeling on 3D layering, the more and more requirements on the form of the light-emitting surface, the 360-degree uniform lighting effect becomes one of the directions of future development.
Along with the limitation of the lamp on the modeling and the space, the design diversity of the LED lamp is more and more, wherein the light guide plate is uniformly illuminated in a light and thin way and a large area, which is one of common realization methods, and how to realize the illumination method similar to the OLED, even if the whole light is uniformly emitted in 360 degrees, is the trend of future research.
As shown in fig. 1, the conventional light guide structure includes a first light guide plate 1, a reflective back plate 2 and an LED pattern 3, wherein the light guide plate 1 is made of red/transparent material, the reflective plate 2 is white, the static appearance shows white/red, and the light guide structure can only realize single-sided lighting, that is, 180-degree lighting effect, and cannot realize 360-degree lighting state.
Disclosure of Invention
The invention provides an optical system for solving the problem that in the prior art, a light guide structure can only realize a lighting effect of 180 degrees and can not realize a lighting state of 360 degrees.
The invention adopts the technical scheme that:
The utility model provides an optical system, includes upper portion half-reflecting and semi-transmitting board, light guide plate and the lower part half-reflecting and semi-transmitting board that sets gradually, upper portion half-reflecting and semi-transmitting board with lower part half-reflecting and semi-transmitting board main part material is PMMA/PC just upper portion half-reflecting and semi-transmitting board with install upper portion half-reflecting and semi-transmitting membrane and lower part half-reflecting and semi-transmitting membrane respectively on the lower part half-reflecting and semi-transmitting board, the light guide plate is located between upper portion half-reflecting and semi-transmitting membrane and the lower part half-reflecting and semi-transmitting membrane, the light guide plate main part is the colorless transparent material of taking scattering tiny particle. .
Further, the light guide plate comprises a light guide plate light inlet end and a light guide plate near light end, the light guide plate light inlet end and the light guide plate near light end are provided with diffusion pattern structures, and light emitted by the LED lamp enters the light guide plate light inlet end and then is transmitted to the light guide plate tail end through the light guide plate near light end.
Further, the front and back surfaces of the light guide plate are both made into optical microstructures, and the inside is doped with scattering small particles.
The invention provides another optical system for solving the problem that in the prior art, the light guide structure can only realize the lighting effect of 180 degrees and can not realize the lighting state of 360 degrees.
The utility model provides an optical system, includes light guide plate and the lower half of setting gradually and reflects the semi-transparent board, the light guide plate main part is the pink material of taking scattering granule, and the outward appearance presents pink, the lower half reflects the semi-transparent board material and is strong reflection of light weak transmission PC material, the inside red dyestuff of doping of lower half reflects the semi-transparent board material, the lower half reflects the semi-transparent board outward appearance and presents red.
Further, the front-end 180-degree brightness is higher than the rear-end 180-degree brightness, and the invention provides another optical system for solving the problem that in the prior art, the light guide structure can only realize the 180-degree lighting effect and can not realize the 360-degree lighting state.
An optical system comprises a light guide plate and a lower semi-reflecting and semi-transmitting plate which are sequentially arranged, wherein the lower semi-reflecting and semi-transmitting plate is made of transparent PC/PMMA (polycarbonate/polymethyl methacrylate) materials, a lower semi-reflecting and semi-transmitting film is adhered to the surface of the lower semi-reflecting and semi-transmitting plate, and a light guide plate main body is arranged on one side of the lower semi-reflecting and semi-transmitting film.
The invention provides a light guide system for a vehicle lamp, which aims to solve the problem that the light guide structure in the prior vehicle lamp technology can only realize the lighting effect of 180 degrees and can not realize the lighting state of 360 degrees.
Compared with the prior art, the invention has the beneficial effects that:
1. The light guide system provided by the invention comprises an upper half-reflecting and semi-transmitting plate, a light guide plate and a lower half-reflecting and semi-transmitting plate, wherein the upper half-reflecting and semi-transmitting plate and the lower half-reflecting and semi-transmitting plate are made of PMMA/PC (polymethyl methacrylate/polycarbonate) and are respectively provided with a half-reflecting and semi-transmitting film, the light guide plate is positioned between two layers of half-reflecting and semi-transmitting films, the light guide plate body is made of a colorless transparent material with scattering small particles, the half-reflecting films enable light to be reflected back at a near/far LED end, light at the near LED end and light at the far LED end are redistributed, the problem that the near LED end is bright and the far LED end is dark is solved, and meanwhile, the problem that a traditional light guide structure can only realize single-sided lighting is solved;
2. the light guide system provided by the invention comprises a light guide plate and a lower half-reflecting and half-transmitting plate, wherein the light guide plate body is made of pink material with small scattering particles, the appearance of the light guide plate body is pink, the lower half-reflecting and half-transmitting plate material is made of strong-reflecting and weak-transmitting PC material, red dye is doped in the lower half-reflecting and half-transmitting plate material, the appearance of the lower half-reflecting and half-transmitting plate is red, the problem that the traditional light guide structure can only realize single-sided lighting is solved, and the 360-degree uniform lighting effect can be realized;
3. The light guide system provided by the invention comprises the light guide plate and the lower half-reflecting and half-transmitting plate, wherein the lower half-reflecting and half-transmitting plate is made of transparent PC material, the lower half-reflecting and half-transmitting film is adhered to the surface of the lower half-reflecting and half-transmitting plate, and the light guide plate main body is arranged on one side of the lower half-reflecting and half-transmitting film, so that the problem that the traditional light guide structure can only realize single-sided lighting is solved, and the 360-degree uniform lighting effect can be realized.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a prior art light guide structure;
FIG. 2 is an isometric view of a light guide system provided in accordance with an embodiment of the present invention;
FIG. 3 is a cross-sectional view of a light guide system provided in accordance with a first embodiment of the present invention;
FIG. 4 is a cross-sectional view of a light guide system according to a second embodiment of the present invention;
fig. 5 is a schematic diagram showing an absorption coefficient of a light guide plate according to a second embodiment of the present invention.
In the figure, 1 is a first light guide plate, 2 is a reflecting plate, 3 is an LED model, 4 is a light guide plate, 5 is a lower half-reflecting and half-transmitting plate, 51 is an upper half-reflecting and half-transmitting film, 6 is an upper half-reflecting and half-transmitting plate, and 61 is a lower half-reflecting and half-transmitting film.
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. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Embodiment one:
Fig. 2 shows an optical system provided in this embodiment one, including upper portion half-reflecting and half-reflecting plate 6, light guide plate 4 and lower half-reflecting and half-reflecting plate 5 that set gradually, upper portion half-reflecting and half-reflecting plate 6 with lower half-reflecting and half-reflecting plate 5 material is PMMA just upper portion half-reflecting and half-reflecting plate 6 with all paste the half-reflecting and half-reflecting membrane on the lower half-reflecting and half-reflecting plate 5, light guide plate 4 is located between the two-layer half-reflecting and half-reflecting membrane, light guide plate 4 main part is the colorless transparent material of taking scattering tiny particle.
Further, the light guide plate 4 includes a light inlet end of the light guide plate 4 and a near light end of the light guide plate 4, the light inlet end of the light guide plate 4 and the near light end of the light guide plate 4 are provided with diffusion pattern structures, and light emitted by the LED lamp enters the light inlet end of the light guide plate 4 and then is transmitted to the tail end of the light guide plate 4 through the near light end of the light guide plate 4.
Further, the front and back surfaces of the light guide plate 4 are both made into optical microstructures, and are internally doped with scattering small particles.
It should be noted that, the main materials of the upper semi-reflective and semi-transmissive plate 6 and the lower semi-reflective and semi-transmissive plate 5 provided in this embodiment are PMMA/PC, the upper semi-reflective and semi-transmissive plate 6 and the lower semi-reflective and semi-transmissive plate 5 are respectively attached with an upper semi-reflective and semi-transmissive film 51 and a lower semi-reflective and semi-transmissive film 61, so that 50% of energy is transmitted, 50% of light is reflected, the light guide plate 4 is located between the upper semi-reflective and semi-transmissive film 51 and the lower semi-reflective and semi-transmissive film 61, the red light emitted by the LEDs enters the light guide plate 4 through the light inlet end of the light guide plate 4, wherein the light inlet end of the light guide plate 4 is provided with a skin pattern for further diffusing the light, and after the light enters the light guide, the light is further diffused at the optical structure of the lower light end of the light guide plate 4, so that the light can be uniformly mixed before the light outlet surface of the light guide plate 4, and a part of the light can be transmitted to the end of the light guide plate 4, and a part of the light is totally reflected back and forth at the upper and lower layers of the light guide plate 4 until the light collides with the microstructures of the upper and lower layers, so that the part of the light breaks the total reflection light; meanwhile, small scattering particles are added in the light guide plate, so that light is further diffused, and the aim of uniform overall light emission is fulfilled. Meanwhile, the emergent light of the light-emitting intensity from the light guide plate 4 is brighter near the LED end and can darken far away from the LED end, part of the emergent light passes through the upper half-reflecting semi-transparent plate and the lower half-reflecting semi-transparent plate, part of the emergent light is reflected, the reflected light is further reflected back and forth inside the light guide plate 4, so that the light energy far away from the LED end is improved, the light energy near the LED end is reduced, the overall uniformity is improved, and the 360-degree uniform light-emitting effect of the whole space is achieved.
Embodiment two:
The principle of this embodiment is the same as that of the first embodiment, and the difference is that the optical system provided in this embodiment includes the light guide plate 4 and the lower half-reflecting half-transmitting plate 5 that set gradually, the light guide plate 4 main part is the pink material of taking scattering granule, and the outward appearance presents pink, the lower half-reflecting half-transmitting plate 5 material is strong reflection of light weak light transmission PC material, the inside red dyestuff of doping of lower half-reflecting half-transmitting plate 5 material, the lower half-reflecting half-transmitting plate 5 outward appearance presents red, and the dot volume effect of optical system presents the bright even red directly over for the point volume effect in this embodiment, and the back presents faintly red.
Embodiment III:
the principle of this embodiment is the same as that of the second embodiment, except that the lower half-reflecting and half-transmitting plate 5 of the optical system provided in this embodiment is made of a transparent PC material, the lower half-reflecting and half-transmitting film 61 is attached to the surface, and the main body of the light guide plate 4 is disposed on one side of the lower half-reflecting and half-transmitting film 61.
In summary, the optical system provided in this embodiment is applied to a vehicle lamp, and can solve the problem that in the existing vehicle lamp technology, the light guide structure can only achieve 180 degrees of lighting effect, and cannot achieve 360 degrees of lighting state.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and further implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
Those of ordinary skill in the art will appreciate that all or a portion of the steps carried out in the method of the above-described embodiments may be implemented by a program to instruct related hardware, where the program may be stored in a computer readable storage medium, and where the program, when executed, includes one or a combination of the steps of the method embodiments.
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 above examples are only illustrative of the preferred embodiments of the present invention and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art to the technical solution of the present invention should fall within the scope of protection defined by the claims of the present invention without departing from the spirit of the design of the present invention.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111586386.5A CN116336408B (en) | 2021-12-23 | 2021-12-23 | Optical system and vehicle light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111586386.5A CN116336408B (en) | 2021-12-23 | 2021-12-23 | Optical system and vehicle light |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116336408A CN116336408A (en) | 2023-06-27 |
| CN116336408B true CN116336408B (en) | 2025-09-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111586386.5A Active CN116336408B (en) | 2021-12-23 | 2021-12-23 | Optical system and vehicle light |
Country Status (1)
| Country | Link |
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| CN (1) | CN116336408B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN217875659U (en) * | 2021-12-23 | 2022-11-22 | 常州星宇车灯股份有限公司 | Optical system and car light |
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| EP1477368B1 (en) * | 2003-05-12 | 2007-08-15 | 3M Innovative Properties Company | Illuminated license plate for vehicles and vehicle provided with the same |
| JP2005112220A (en) * | 2003-10-09 | 2005-04-28 | Honda Motor Co Ltd | Vehicle lighting device |
| FR2974616B1 (en) * | 2011-04-29 | 2015-12-25 | Valeo Illuminacion | SIGNALING DEVICE WITH "STOP" AND "POSITION" FUNCTIONS USING A LIGHT GUIDE AND GENERATING A 3D EFFECT |
| KR20130011779A (en) * | 2011-07-22 | 2013-01-30 | 현대모비스 주식회사 | Lamp assembly |
| JP5820286B2 (en) * | 2012-01-27 | 2015-11-24 | 林テレンプ株式会社 | Automotive lighting plate |
| CN104235725A (en) * | 2014-08-28 | 2014-12-24 | 马瑞利汽车零部件(芜湖)有限公司 | Automobile tail light with endlessly circularly reflected 3D effect |
| EP3147561A1 (en) * | 2016-03-14 | 2017-03-29 | Evonik Röhm GmbH | Light guide panels for use outdoor and in wet areas |
| CN206488191U (en) * | 2017-01-16 | 2017-09-12 | 北京汽车股份有限公司 | Car light and automobile |
| FR3078140B1 (en) * | 2018-02-19 | 2020-09-11 | Automotive Lighting Rear Lamps France | ATTRACTIVE SAFETY SIGNALING DEVICE FOR A MOTOR VEHICLE |
| CN208635016U (en) * | 2018-08-15 | 2019-03-22 | 法雷奥照明湖北技术中心有限公司 | Optical element and light emitting device |
| KR102557269B1 (en) * | 2018-08-28 | 2023-07-19 | 제트카베 그룹 게엠베하 | Vehicle lamp using semiconductor light emitting device |
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| CN109557719B (en) * | 2018-11-30 | 2021-07-27 | 合肥泰沃达智能装备有限公司 | Direct type zero OD backlight structure with semi-reflective and semi-transparent light guide plate |
| DE102020101813A1 (en) * | 2019-01-29 | 2020-07-30 | Schott Ag | Line light |
| CN110762480B (en) * | 2019-10-25 | 2024-09-20 | 马瑞利汽车零部件(芜湖)有限公司 | High-efficiency combined thick-wall part optical system for realizing function multiplexing |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN217875659U (en) * | 2021-12-23 | 2022-11-22 | 常州星宇车灯股份有限公司 | Optical system and car light |
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| CN116336408A (en) | 2023-06-27 |
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