CN220269195U - Optical coupling structure for improving lighting effect - Google Patents
Optical coupling structure for improving lighting effect Download PDFInfo
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- CN220269195U CN220269195U CN202322322829.0U CN202322322829U CN220269195U CN 220269195 U CN220269195 U CN 220269195U CN 202322322829 U CN202322322829 U CN 202322322829U CN 220269195 U CN220269195 U CN 220269195U
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- 230000000694 effects Effects 0.000 title claims abstract description 26
- 230000003287 optical effect Effects 0.000 title claims abstract description 26
- 230000008878 coupling Effects 0.000 title claims abstract description 19
- 238000010168 coupling process Methods 0.000 title claims abstract description 19
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 19
- 238000009792 diffusion process Methods 0.000 claims description 14
- 239000004033 plastic Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 230000002708 enhancing effect Effects 0.000 claims description 2
- 230000004907 flux Effects 0.000 abstract description 5
- 239000002245 particle Substances 0.000 abstract description 5
- 230000008859 change Effects 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
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Abstract
The utility model relates to the technical field of car lamps, in particular to an optical coupling structure for improving a lighting effect, which comprises a first part, wherein a first curved surface is arranged on the first part, and the first curved surface can form a focal line; the second part is arranged at intervals with the first part, a second curved surface is arranged on the second part, and the second curved surface can form a focal line; the focal line of the first curved surface coincides with the focal line formed by the second curved surface, and light sequentially passes through the first curved surface and the second curved surface and is collimated and emitted. According to the optical coupling structure for improving the lighting effect, the light rays firstly pass through the first curved surface to change the angle of the light rays, and then pass through the second curved surface to be collimated and emitted, so that the loss of the light rays can be reduced, and the lighting efficiency and uniformity can be improved. Compared with the traditional light guide structure, the light is less absorbed by the transparent particles, the light flux is not easy to attenuate, and then the tail end of the light guide structure is not yellow like a light guide, so that the overall lighting effect is improved.
Description
Technical Field
The utility model relates to the technical field of car lamps, in particular to an optical coupling structure for improving a lighting effect.
Background
In the field of vehicle signal lamps, light guides are often employed optical elements. The traditional light guide structure is difficult to achieve better uniformity, and the time cost of design is high. And the plastic has color difference at the head end of the transmission of white light, and the closer to the tail end, the more yellow the color is.
Disclosure of Invention
The utility model aims to solve the technical problems that: in order to solve the technical problems in the prior art, the utility model provides an optical coupling structure for improving the lighting effect.
The technical scheme adopted for solving the technical problems is as follows: an optical coupling structure for improving lighting effect comprises a first part, wherein a first curved surface is arranged on the first part, and the first curved surface can form a focal line; the second part is arranged at intervals with the first part, a second curved surface is arranged on the second part, and the second curved surface can form a focal line; the focal line of the first curved surface coincides with the focal line formed by the second curved surface, and light sequentially passes through the first curved surface and the second curved surface and is collimated and emitted.
According to the optical coupling structure for improving the lighting effect, the light rays firstly pass through the first curved surface to change the angle of the light rays, and then pass through the second curved surface to be collimated and emitted, so that the loss of the light rays can be reduced, and the lighting efficiency and uniformity can be improved. And first part and second part interval set up, compare in traditional light guide structure, light is less by transparent particle absorbing, is difficult for leading to the luminous flux to decay, and then can not yellow like the light guide terminal, and then promotes holistic lighting effect.
Further, the first curved surface is arranged at the light emitting end of the first part, and the middle part of the first curved surface is arranged in a convex way towards the second part; the second curved surface is arranged at the light emitting end of the second part, and the middle part of the second curved surface is arranged in a protruding way towards the direction away from the first part.
Further, the first curved surface is arranged at the light emitting end of the first part, and the middle part of the first curved surface is concavely arranged towards the second part; the second curved surface is arranged at the light emitting end of the second part, and the middle part of the second curved surface is arranged in a protruding way towards the direction away from the first part.
Further, the first curved surface is arranged at the light emitting end of the first part, and the middle part of the first curved surface is arranged in a convex way towards the second part; the second curved surface is arranged at the light incident end of the second part, and the middle part of the second curved surface is arranged towards the first part in a protruding way.
Further, a diffusion pattern is arranged at the light emitting end of the first part.
Further, a diffusion pattern is arranged at the light incident end of the second part.
Further, when the first portion is obliquely arranged relative to the second portion, the diffusion patterns are arranged in an oblique direction, and step connection is arranged between the adjacent diffusion patterns.
Further, the first and second portions are each made of plastic.
The utility model has the advantages that,
1. light rays are converged at the focal line through the first curved surface and then are collimated and emitted through the second curved surface, so that light loss can be reduced, and lighting efficiency is improved. In order to achieve the same light guide lighting effect, the distance between the transparent optical piece in the optical axis direction is far smaller than the length of the light guide, and compared with a traditional light guide structure, light rays are less absorbed by transparent particles, so that light flux is not easy to attenuate, the tail end of the light guide is not yellow like the light guide, and the overall lighting effect is further improved;
2. the second part is formed by stretching, so that the appearance is similar to that of the light guide, and the lighting uniformity is improved while the appearance of the light guide is maintained;
3. the step connection is arranged between two adjacent patterns distributed along the inclined direction, so that the inclination of light caused by the inclination of the first part and the second part can be corrected, and the light can be emitted approximately along the main direction of the optical axis after passing through the surface of the diffusion pattern.
Drawings
The utility model will be further described with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of an optical coupling structure showing an enhanced lighting effect in embodiment 1 of the present utility model.
Fig. 2 is a schematic view showing the inclined arrangement of adjacent diffusion patterns in the present utility model.
Fig. 3 is a schematic view of the light ray principle of embodiment 2 of the present utility model, which shows the first curved surface and the second curved surface.
Fig. 4 is a schematic view of the light ray principle of embodiment 3 of the present utility model, which shows the first curved surface and the second curved surface.
In the figure, 1, a first part; 11. a first curved surface; 2. a second portion; 21. a second curved surface; 3. a diffusion pattern; 4. a step; F. a focal point.
Detailed Description
The utility model will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the utility model and therefore show only the structures which are relevant to the utility model.
The utility model discloses an optical coupling structure for improving a lighting effect.
Referring to fig. 1 and 2, an optical coupling structure for enhancing a lighting effect includes a first portion 1 and a second portion 2, the second portion 2 being spaced apart from the first portion 1. The first part 1 is provided with a first curved surface 11, the second part 2 is provided with a second curved surface 21, the first curved surface 11 and the second curved surface 21 can form a focal line, and the focal line formed by the first curved surface 11 is overlapped with the focal line formed by the second curved surface 21. The light rays sequentially pass through the first curved surface 11 and the second curved surface 21 and are collimated and emitted.
At least one of the light emitting end of the first portion 1 and the light entering end of the second portion 2 is provided with a diffusion pattern 3, and may be provided on both the light emitting end of the first portion 1 and the light entering end of the second portion 2. When the first curved surface 11 is the light emitting end of the first portion 1, the diffusion pattern 3 may be disposed on the first curved surface 11, and when the second curved surface 21 is the light entering end of the second portion 2, the diffusion pattern 3 may be disposed on the second curved surface 21.
Reference toIn fig. 2, when the first portion 1 is disposed obliquely with respect to the second portion 2, the adjacent diffusing patterns 3 are arranged in an oblique direction, and the adjacent patterns are connected by the step 4. When the first part 1 is obliquely arranged relative to the second part 2, a beam of vertical light rays is deflected at a certain angle and then is emitted after passing through the inclined plane; the diffusion pattern 3 can ensure that the light rays pass through the back and are deflected left and right by taking the optical axis as the main direction 。
In order to achieve the same light guide lighting effect, the distance between the transparent optical piece in the optical axis direction is far smaller than the length of the traditional light guide through the matching of the first curved surface 11 and the second curved surface 21, compared with the traditional light guide structure, light is less absorbed by transparent particles, light flux attenuation is not easy to be caused, the tail end of the light guide cannot be yellow like the light guide, and the overall lighting effect is further improved.
The second curved surface 21 can be formed by stretching, namely, the focal point is located on the contour line of the focal point of the first curved surface, so that the second curved surface 21 is formed by stretching, the whole appearance is similar to that of the light guide, and the lighting uniformity is improved while the appearance of the light guide is maintained.
The first part 1 and the second part 2 are made of plastic, can be made of transparent materials such as PC, PMMA and the like, and have good light transmission capability.
Referring to fig. 1, a first curved surface 11 is disposed at a light emitting end of a first portion 1, and a middle portion of the first curved surface 11 is disposed protruding toward a second portion 2; meanwhile, the second curved surface 21 is arranged at the light emitting end of the second part 2, and the middle part of the second curved surface 21 is arranged in a convex manner towards the direction away from the first part 1. The focal lines of the first curved surface 11 and the second curved surface 21 are real focal lines, and in a vertical plane, light rays are converged at a focal point F after passing through the first curved surface 11, then pass through the second part 2, and are collimated by the second curved surface 21 to become parallel light to be emitted.
Example 2
Referring to fig. 3, the first curved surface 11 is disposed at the light emitting end of the first portion 1, and the middle portion of the first curved surface 11 is concavely disposed toward the second portion 2; the second curved surface 21 is disposed at the light emitting end of the second portion 2, and the middle portion of the second curved surface 21 is disposed protruding toward a direction away from the first portion 1. The focal line of the first curved surface 11 is a virtual focal line, the focal line of the second curved surface 21 is a real focal line, and the light beam passes through the first curved surface 11, changes the diffusion angle, then passes through the second portion 2, and is collimated into parallel light to be emitted through the second curved surface 21.
Example 3
Referring to fig. 4, the first curved surface 11 is disposed at the light emitting end of the first portion 1, and the middle portion of the first curved surface 11 is disposed protruding toward the second portion 2; the second curved surface 21 is disposed at the light incident end of the second portion 2, and the middle portion of the second curved surface 21 is disposed protruding toward the first portion 1. The focal lines of the first curved surface 11 and the second curved surface 21 are real focal lines, and the light is converged to the focal point F after passing through the first curved surface 11, then dispersed and passes through the second curved surface 21, and becomes parallel light through the second curved surface 21 to be quasi-direct incident into the second part 2 until being emitted from the second part 2.
Working principle: after being refracted by the first curved surface 11, the light is converged on a real focal line or reversely converged on a virtual focal line, and then is collimated and emitted by the second curved surface 21, so that the loss of the light can be reduced, and the lighting efficiency and uniformity can be improved. Compared with the traditional light guide structure, the light is less absorbed by the transparent particles, the light flux is not easy to attenuate, and then the tail end of the light guide structure is not yellow like a light guide, so that the overall lighting effect is improved.
With the above-described preferred embodiments according to the present utility model as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present utility model. The technical scope of the present utility model is not limited to the description, but must be determined according to the scope of claims.
Claims (8)
1. An optical coupling structure for improving lighting effect, comprising
A first part (1), wherein a first curved surface (11) is arranged on the first part (1), and the first curved surface (11) can form a focal line;
the second part (2), the second part (2) is arranged at intervals with the first part (1), a second curved surface (21) is arranged on the second part (2), and the second curved surface (21) can form a focal line;
the focal line formed by the first curved surface (11) is overlapped with the focal line formed by the second curved surface (21), and light rays sequentially pass through the first curved surface (11) and the second curved surface (21) and are collimated and emitted.
2. The optical coupling structure for improving the lighting effect according to claim 1, wherein the first curved surface (11) is disposed at a light emitting end of the first portion (1), and a middle portion of the first curved surface (11) is disposed protruding toward the second portion (2);
the second curved surface (21) is arranged at the light emitting end of the second part (2), and the middle part of the second curved surface (21) is outwards convex towards the direction away from the first part (1).
3. The optical coupling structure for improving the lighting effect according to claim 1, wherein the first curved surface (11) is disposed at a light emitting end of the first portion (1), and a middle portion of the first curved surface (11) is concavely disposed toward the second portion (2);
the second curved surface (21) is arranged at the light emitting end of the second part (2), and the middle part of the second curved surface (21) is outwards convex towards the direction away from the first part (1).
4. The optical coupling structure for improving the lighting effect according to claim 1, wherein the first curved surface (11) is disposed at a light emitting end of the first portion (1), and a middle portion of the first curved surface (11) is disposed protruding toward the second portion (2);
the second curved surface (21) is arranged at the light inlet end of the second part (2), and the middle part of the second curved surface (21) is arranged in a protruding way towards the first part (1).
5. An optical coupling structure for improving a lighting effect as claimed in claim 1, characterized in that the light exit end of the first portion (1) is provided with a diffusing pattern (3).
6. An optical coupling structure for improving a lighting effect as claimed in claim 1, characterized in that the light entrance end of the second portion (2) is provided with a diffusing pattern (3).
7. An optical coupling structure for enhancing a lighting effect as claimed in claim 5 or 6, wherein when the first portion (1) is obliquely arranged with respect to the second portion (2), the diffusion patterns (3) are arranged in an oblique direction, and steps (4) are provided between adjacent diffusion patterns (3) for connection.
8. An optical coupling structure for improving lighting effect as claimed in claim 1, characterized in that the first part (1) and the second part (2) are both made of plastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322322829.0U CN220269195U (en) | 2023-08-28 | 2023-08-28 | Optical coupling structure for improving lighting effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322322829.0U CN220269195U (en) | 2023-08-28 | 2023-08-28 | Optical coupling structure for improving lighting effect |
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| Publication Number | Publication Date |
|---|---|
| CN220269195U true CN220269195U (en) | 2023-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322322829.0U Active CN220269195U (en) | 2023-08-28 | 2023-08-28 | Optical coupling structure for improving lighting effect |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118031152A (en) * | 2024-04-15 | 2024-05-14 | 常州星宇车灯股份有限公司 | Optical system for improving lighting uniformity and car lamp and car using same |
| CN118049618A (en) * | 2024-04-15 | 2024-05-17 | 常州星宇车灯股份有限公司 | Thick-wall member optical structure, car light and vehicle |
-
2023
- 2023-08-28 CN CN202322322829.0U patent/CN220269195U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118031152A (en) * | 2024-04-15 | 2024-05-14 | 常州星宇车灯股份有限公司 | Optical system for improving lighting uniformity and car lamp and car using same |
| CN118049618A (en) * | 2024-04-15 | 2024-05-17 | 常州星宇车灯股份有限公司 | Thick-wall member optical structure, car light and vehicle |
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