CN107893971B - Aplanatic thick-wall part of automobile tail lamp - Google Patents
Aplanatic thick-wall part of automobile tail lamp Download PDFInfo
- Publication number
- CN107893971B CN107893971B CN201711277038.3A CN201711277038A CN107893971B CN 107893971 B CN107893971 B CN 107893971B CN 201711277038 A CN201711277038 A CN 201711277038A CN 107893971 B CN107893971 B CN 107893971B
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- collimator
- emitted
- light source
- light
- led light
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- 230000003287 optical effect Effects 0.000 claims abstract description 18
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 3
- 239000004417 polycarbonate Substances 0.000 claims description 3
- 229920000515 polycarbonate Polymers 0.000 claims description 3
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 9
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
- F21V7/0025—Combination of two or more reflectors for a single light source
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V15/00—Protecting lighting devices from damage
- F21V15/01—Housings, e.g. material or assembling of housing parts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
- F21V7/04—Optical design
- F21V7/06—Optical design with parabolic curvature
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- 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 aims to provide an aplanatic thick-wall part of an automobile tail lamp, wherein light rays of a first LED light source are collimated by a first collimator and then are emitted into a body, then are emitted out of the body, are emitted into the body through a stepped light-emitting surface, and are emitted out through a rear reflecting surface and the light-emitting surface; light rays of the second LED light source are collimated by the second collimator and then are emitted into the body, and then are emitted out through the rear reflecting surface and the light emitting surface; the optical paths of the two light rays reaching the front reference surface after being emitted are equal, so that a uniform lighting effect can be obtained; the angle between the rear reflecting surface and the upper surfaces of the two collimators is 45 degrees, so that the utilization rate of effective light is increased; the use of the stepped light-emitting surface reduces the weight and volume of the thick-wall member under the condition of realizing equal optical path, so that the thick-wall member is lighter.
Description
Technical Field
The invention relates to the field of thick-wall parts of automobile tail lamps, in particular to an aplanatic thick-wall part of an automobile tail lamp with efficient and uniform lighting effect.
Background
With the development of automobile lamp technology, the design of the automobile lamp can strictly meet the requirement of regulations, the appearance requirement of the whole automobile customer on the automobile lamp, particularly the lighting effect is more and more important, and to a certain extent, the beautiful automobile lamp appearance can rapidly improve the visual feeling of an automobile. For automobile taillights, customers like the novel design of position lights and have perfect lighting effect. So that more and more thick-wall parts are used for automobile tail lamps, and the requirements of transparency, uniformity and changeable shapes are met.
The existing thick-wall parts can meet the requirements of whole vehicle customers on the modeling and appearance of the tail lamp, but most thick-wall parts have the phenomena of larger volume, low efficiency, heavy weight and uneven lighting effect, and the phenomenon is related to the design of the thick-wall parts by utilizing total reflection.
Disclosure of Invention
In order to solve the problems, the invention provides an aplanatic thick-wall part of an automobile tail lamp, wherein a first LED light source is collimated by a first collimator and then is emitted into a body, and then is emitted out of the body, and then is emitted into the body through a step-shaped light emitting surface and then is emitted out through a rear reflecting surface and the light emitting surface; light rays of the second LED light source are collimated by the second collimator and then are emitted into the body, and then are emitted out through the rear reflecting surface and the light emitting surface; the optical paths of the two light rays reaching the front reference surface after being emitted are equal, so that a uniform lighting effect can be obtained, and the problems in the background technology are solved.
The invention aims to provide an aplanatic thick-wall part of an automobile tail lamp, which comprises a body, wherein a first collimator and a second collimator which are arranged side by side are arranged at the bottom of the body in front of and behind the body, and a first LED light source and a second LED light source are respectively arranged below the first collimator and the second collimator; the rear wall of the body is a rear reflecting surface, and the front end of the body is a stepped light-emitting surface; the back reflecting surface makes an angle of 45 degrees with the upper surfaces of the first collimator and the second collimator.
The light of the first LED light source is collimated by the first collimator and then is emitted into the body, then is emitted out of the body, is emitted into the body through the step-shaped light-emitting surface, and is emitted through the rear reflecting surface and the light-emitting surface; the light rays of the second LED light source are collimated by the second collimator and then emitted into the body, and then emitted out through the rear reflecting surface and the light emitting surface.
The further improvement is that: the front side of the body is provided with a front reference surface, light rays of the first LED light source and the second LED light source are emitted onto the front reference surface, and optical paths of the first LED light source and the second LED light source emitted onto the front reference surface are equal.
The further improvement is that: the light paths of the light rays reaching the front reference surface of the first LED light source and the light rays reaching the front reference surface of the second LED light source are equal in part inside the body, and the light paths of the light rays outside the body are equal.
The further improvement is that: the rear reflecting surface is an equally divided paraboloid.
The further improvement is that: the bottoms of the first collimator and the second collimator are collecting surfaces, and the side walls are paraboloids.
The further improvement is that: the edge spacing between the first collimator and the second collimator is 1mm.
The further improvement is that: the body is made of polycarbonate or polymethyl methacrylate.
The invention has the beneficial effects that: the light of the first LED light source is collimated by the first collimator and then is emitted into the body, and then is emitted out of the body, and then is emitted into the body through the step-shaped light-emitting surface and then is emitted through the rear reflecting surface and the light-emitting surface; light rays of the second LED light source are collimated by the second collimator and then are emitted into the body, and then are emitted out through the rear reflecting surface and the light emitting surface; the optical paths of the two light rays reaching the front reference surface after being emitted are equal, so that a uniform lighting effect can be obtained; the angle between the rear reflecting surface and the upper surfaces of the two collimators is 45 degrees, so that the utilization rate of effective light is increased; the use of the stepped light-emitting surface reduces the weight and volume of the thick-wall member under the condition of realizing equal optical path, so that the thick-wall member is lighter.
Drawings
Fig. 1 is a structural diagram of the present invention.
Wherein: the LED light source comprises a 1-body, a 2-first collimator, a 3-second collimator, a 4-first LED light source, a 5-second LED light source, a 6-rear reflecting surface, a 7-light-emitting surface, an 8-front reference surface, 9-first light and 10-second light.
Detailed Description
The present invention will be further described in detail with reference to examples, which are provided for the purpose of illustration only and are not intended to limit the scope of the present invention.
As shown in fig. 1, the present embodiment provides an aplanatic thick-wall member of an automobile tail lamp, which includes a body 1, wherein a first collimator 2 and a second collimator 3 are arranged side by side in front of and behind the bottom of the body 1, and a first LED light source 4 and a second LED light source 5 are respectively arranged below the first collimator 2 and the second collimator 3; the rear wall of the body 1 is a rear reflecting surface 6, and the front end of the body 1 is a step-shaped light-emitting surface 7; the back reflecting surface 6 makes an angle of 45 deg. with the upper surfaces of the first collimator 2 and the second collimator 3. The light of the first LED light source 4 is collimated by the first collimator 2 and then is emitted into the body 1, then is emitted out of the body 1, is emitted into the body 1 through the step-shaped light emitting surface 7, and is emitted through the rear reflecting surface 6 and the light emitting surface 7; the light of the second LED light source 5 is collimated by the second collimator 3 and then enters the body 1, and then is emitted through the rear reflection surface 6 and the light emitting surface 7. The front side of the body 1 is provided with a front reference surface 8, light rays of the first LED light source 4 and the second LED light source 5 are emitted onto the front reference surface 8, and optical paths of the light rays of the first LED light source 4 and the light rays of the second LED light source 5 emitted onto the front reference surface 8 are equal. The light rays reaching the front reference surface 8 of the first LED light source 4 and the second LED light source 5 have equal optical paths at the inner part of the body 1 and equal optical paths at the outer part of the body 1. The rear reflecting surface 6 is an equally divided paraboloid. The bottoms of the first collimator 2 and the second collimator 3 are condensing surfaces, and the side walls are paraboloids. The edge spacing between the first collimator 2 and the second collimator 3 is 1mm. The body 1 is made of polycarbonate or polymethyl methacrylate.
The refractive index of the thick-walled member of this embodiment is set to n, and the first light ray 9 and the second light ray 10 are selected to be emitted from the same position of the first collimator 2 and the second collimator 3, respectively. The first light ray 9 is light emitted by the first LED light source 4, and the optical path of the first light ray 9 is L4, L5, L6, L7, L8, where L4, L6, and L7 are thick wall member internal paths, and L5, L8 are thick wall member external air paths, so that the total optical path sum is n x (l4+l6+l7) +l5+l8. Similarly, the second light ray 10 is emitted by the second LED light source 5, and the optical path of the second light ray 10 is L1, L2, and L3, where L1 and L2 are thick-wall member internal paths, and L3 is thick-wall member external air path, so the total optical path sum is n×1+l2) +l3. By designing the height and width of the stepped light exit surface 7 such that l1+l2=l4+l6+l7, l3=l5+l8, n (l1+l2) +l3=n (l4+l6+l7) +l5+l8 is obtained, i.e. the first light ray 9 and the second light ray 10 have equal optical paths. All the light losses reaching the front reference surface 8 are the same, i.e. the light intensity distribution is equal, achieving a uniform lighting effect.
The light of the first LED light source 4 is collimated by the first collimator 2 and then is emitted into the body 1, then is emitted out of the body 1, is emitted into the body through the step-shaped light-emitting surface 7, and is emitted through the rear reflecting surface 6 and the light-emitting surface 7; the light rays of the second LED light source 5 are collimated by the second collimator 3 and then are emitted into the body 1, and then are emitted out through the rear reflection surface 6 and the light emitting surface 7; the optical paths of the two light rays reaching the front reference surface 8 are equal, so that a uniform lighting effect can be obtained; the angle between the rear reflecting surface 6 and the upper surfaces of the two collimators is 45 degrees, so that the utilization rate of effective light is increased; the use of the stepped light exit surface 7 reduces the weight and volume of the thick-walled member while achieving an aplanatic path, making the thick-walled member lighter.
Claims (5)
1. An aplanatic thick-wall member for an automobile tail lamp, which is characterized in that: the LED light source comprises a body (1), wherein a first collimator (2) and a second collimator (3) are arranged at the bottom of the body (1) in parallel in the front-back direction, and a first LED light source (4) and a second LED light source (5) are respectively arranged below the first collimator (2) and the second collimator (3); the rear wall of the body (1) is a rear reflecting surface (6), and the front end of the body (1) is a step-shaped light-emitting surface (7); the rear reflecting surface (6) forms an angle of 45 degrees with the upper surfaces of the first collimator (2) and the second collimator (3);
the light of the first LED light source (4) is collimated by the first collimator (2) and then is emitted into the body (1), then is emitted out of the body (1), is emitted into the body (1) through the step-shaped light emitting surface (7), and is emitted out through the rear reflecting surface (6) and the light emitting surface (7); the light of the second LED light source (5) is collimated by the second collimator (3) and then is emitted into the body (1) and then is emitted out through the rear reflecting surface (6) and the light emitting surface (7);
the front side of the body (1) is provided with a front reference surface (8), light rays of the first LED light source (4) and the second LED light source (5) are emitted onto the front reference surface (8), and optical paths of the first LED light source (4) and the second LED light source (5) emitted onto the front reference surface (8) are equal;
the optical paths of the light rays reaching the front reference surface (8) of the first LED light source (4) and the second LED light source (5) are equal in the inner part of the body (1), and the optical paths of the light rays outside the body (1) are equal.
2. An aplanatic thick-wall part of an automobile tail light as claimed in claim 1, wherein: the rear reflecting surface (6) is an equally divided paraboloid.
3. An aplanatic thick-wall part of an automobile tail light as claimed in claim 1, wherein: the bottoms of the first collimator (2) and the second collimator (3) are condensing surfaces, and the side walls are paraboloids.
4. An aplanatic thick-wall part of an automobile tail light as claimed in claim 1, wherein: the edge distance between the first collimator (2) and the second collimator (3) is 1mm.
5. An aplanatic thick-wall part of an automobile tail light as claimed in claim 1, wherein: the body (1) is made of polycarbonate or polymethyl methacrylate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711277038.3A CN107893971B (en) | 2017-12-06 | 2017-12-06 | Aplanatic thick-wall part of automobile tail lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711277038.3A CN107893971B (en) | 2017-12-06 | 2017-12-06 | Aplanatic thick-wall part of automobile tail lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107893971A CN107893971A (en) | 2018-04-10 |
| CN107893971B true CN107893971B (en) | 2024-04-02 |
Family
ID=61807620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711277038.3A Active CN107893971B (en) | 2017-12-06 | 2017-12-06 | Aplanatic thick-wall part of automobile tail lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107893971B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1401935A (en) * | 2001-08-15 | 2003-03-12 | 株式会社小糸制作所 | Lamp for vehicle |
| JP2011028961A (en) * | 2009-07-23 | 2011-02-10 | Harison Toshiba Lighting Corp | Vehicular lighting system |
| CN105402673A (en) * | 2015-11-26 | 2016-03-16 | 马瑞利汽车零部件(芜湖)有限公司 | Composite light homogenizing car lamp |
| CN106594629A (en) * | 2017-01-23 | 2017-04-26 | 上海小糸车灯有限公司 | Brake lamp/tail lamp optical structure of LED vehicle tail lamp |
| AT518552A4 (en) * | 2016-08-19 | 2017-11-15 | Zkw Group Gmbh | Lighting unit for a motor vehicle headlight for generating at least two light distributions |
| CN207501073U (en) * | 2017-12-06 | 2018-06-15 | 马瑞利汽车零部件(芜湖)有限公司 | The aplanatism heavy section casting of automobile tail light |
-
2017
- 2017-12-06 CN CN201711277038.3A patent/CN107893971B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1401935A (en) * | 2001-08-15 | 2003-03-12 | 株式会社小糸制作所 | Lamp for vehicle |
| JP2011028961A (en) * | 2009-07-23 | 2011-02-10 | Harison Toshiba Lighting Corp | Vehicular lighting system |
| CN105402673A (en) * | 2015-11-26 | 2016-03-16 | 马瑞利汽车零部件(芜湖)有限公司 | Composite light homogenizing car lamp |
| AT518552A4 (en) * | 2016-08-19 | 2017-11-15 | Zkw Group Gmbh | Lighting unit for a motor vehicle headlight for generating at least two light distributions |
| CN106594629A (en) * | 2017-01-23 | 2017-04-26 | 上海小糸车灯有限公司 | Brake lamp/tail lamp optical structure of LED vehicle tail lamp |
| CN207501073U (en) * | 2017-12-06 | 2018-06-15 | 马瑞利汽车零部件(芜湖)有限公司 | The aplanatism heavy section casting of automobile tail light |
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| Publication number | Publication date |
|---|---|
| CN107893971A (en) | 2018-04-10 |
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