Car lamp optical structure with babysbreath effect
By using multi-angle conduction and refraction optical structures in automotive lamps, including horizontal light guide plates, vertical light guide plates, condensers, raised optical structures and aluminum plating, existing automotive lamps are solved at a large viewing angle. The problem of poor lighting effect achieves a star-like lighting effect and reduces costs.
Patent Information
- Application Number
- CN202411617123.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-13
- Publication Date
- 2024-12-27
AI Technical Summary
The lighting effect of existing automotive lamps gradually weakens after the observation angle increases, making it difficult to achieve uniform lighting at a large viewing angle, and is costly.
Adopt an optical structure including horizontal light guide plate, vertical light guide plate, light concentrator, raised optical structure, total reflection structure and aluminum-plated layer. Through multi-angle and multi-directional light conduction and refraction, a star-like point is formed. Bright effect.
The lighting effect of a large perspective is achieved, and it is still visible after exceeding a certain angle, reducing production costs and improving space utilization.
Smart Images
Figure CN119196572A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of automobile lamps, and in particular to an optical structure of an automobile lamp presenting a starry sky effect. Background Art
[0002] With the development of the automobile industry, automobile brands have increasingly strong demands for the cost, performance and style of headlights. LED lamps are increasingly used in headlights, but the lighting effect is relatively simple. As the observation angle increases, the lighting effect will become worse and worse until it is almost invisible beyond a certain angle. The existing headlight optical structure uses complex lens components, reflective surface design and optical materials to achieve a wide-angle lighting effect, which is costly. Summary of the invention
[0003] The object of the present invention is to provide an optical structure of a vehicle light presenting a starry sky effect, so as to solve the problems raised in the prior art.
[0004] To achieve the above object, the present invention provides the following technical solutions: The optical structure includes a light guide module and a light-emitting module, the light-emitting module and the light guide module are fixedly connected, the light guide module includes a horizontal light guide plate, a concentrator and a vertical light guide plate, the vertical light guide plate is L-shaped, the long plate ends of the horizontal light guide plate and the vertical light guide plate are perpendicular to each other, the short plate end of the vertical light guide plate is parallel to the horizontal light guide plate, the long plate end of the vertical light guide plate and the concentrator are fixedly connected, the long plate end of the vertical light guide plate is located between the short plate end and the concentrator, the horizontal light guide plate and the concentrator are fixedly connected, the concentrator is located at the vertical connection between the long plate ends of the horizontal light guide plate and the vertical light guide plate, the light-emitting module includes a light-emitting element and a light-emitting substrate, the light-emitting element and the light-emitting substrate are fixedly connected, the vertical light guide plate passes through the light-emitting substrate, the light-emitting substrate and the vertical light guide plate are fixedly connected, the light-emitting substrate and the horizontal light guide plate are located on both sides of the vertical light guide plate, and the light-emitting element is located between the light-emitting substrate and the vertical light guide plate.
[0005] The light-emitting module emits light, and the light guide module conducts the incident light in multiple angles and directions. The light-emitting element emits light, and part of the light is incident from one side of the horizontal light guide plate through the concentrator. The concentrator can focus part of the light emitted by the light-emitting element to one side of the horizontal light guide plate, thereby increasing the amount of light incident on the horizontal light guide plate and improving the lighting effect. After being transmitted through the horizontal light guide plate, the light is emitted from irregular directions, and part of the light is directly incident on the long plate end of the vertical light guide plate. After being transmitted through the long plate end of the vertical light guide plate, the light is emitted from irregular directions, and then refracted through the short plate end of the vertical light guide plate and the horizontal light guide plate to light up the entire window, thereby achieving wide-angle lighting and forming a starry sky-like lighting effect.
[0006] Furthermore, an aluminum plating layer is provided on the short plate end of the vertical light guide plate, and the aluminum plating layer is located on one side of the horizontal light guide plate.
[0007] When light is emitted from the long end of the vertical light guide plate to the aluminum layer, the aluminum layer refracts the light again, causing the light to illuminate the area below the short end of the vertical light guide plate, increasing the lighting viewing angle and enhancing the lighting effect.
[0008] Furthermore, a protruding optical structure is provided on the long plate end of the vertical light guide plate, and the protruding optical structure is located on one side of the horizontal light guide plate.
[0009] The raised optical structure allows light to be refracted and totally reflected at the same time, providing more emission angles for the light. The emitted light is then reflected by the aluminum layer to achieve lighting at a wide viewing angle.
[0010] Furthermore, the raised optical structure is a polygon.
[0011] The hypotenuse angle of the raised optical structure is the total reflection angle of the visible light wavelength. Different raised optical structures provide different refraction and total reflection paths to form different lighting effects.
[0012] Furthermore, the sidewalls of the raised optical structure are coated with a semi-reflective and semi-transparent film layer.
[0013] The semi-reflective and semi-transparent film layer can eliminate stray light and adjust the refraction and transmission ratio of incident light to achieve a light splitting effect.
[0014] Furthermore, a total reflection structure is provided on the horizontal light guide plate, and the total reflection structure is located near the light output end of the horizontal light guide plate.
[0015] The total reflection structure is arranged at the near light-emitting end of the horizontal light guide plate, so that the light can illuminate a wider viewing angle after being reflected by the total reflection structure.
[0016] Furthermore, the total reflection structure is composed of a plurality of depressions and protrusions.
[0017] The total reflection structure is composed of multiple depressions and protrusions. It is an irregular structure that allows light to be emitted from irregular directions, increasing the lighting viewing angle and making the lighting effect like a starry sky.
[0018] Furthermore, an aluminum coating is provided on a surface of the horizontal light guide plate facing the vertical light guide plate, the aluminum coating is located between the total reflection structure and the concentrator, and the aluminum coating is located on one side of the vertical light guide plate.
[0019] The aluminum coating can reduce the loss of light in the horizontal light guide plate before it enters the total reflection structure, thereby improving the star-filled lighting effect.
[0020] Furthermore, the position of the light-emitting element on the light-emitting substrate corresponds to the concentrator and the protruding optical structure.
[0021] The corresponding arrangement of the light-emitting element, the concentrator and the raised optical structure can maximize the amount of light entering the concentrator and the raised optical structure, thereby obtaining a stronger lighting effect, while improving resource utilization and reducing the cost of achieving the same lighting effect.
[0022] Compared with the prior art, the present invention has the following beneficial effects: 1. The total reflection structure, convex optical structure and aluminum plating layer of the present invention increase the lighting viewing angle, and can be lit at a wide viewing angle, and can still be observed beyond a certain angle; 2. The lighting effect of the present invention is like a starry sky, which is a new type of lighting effect; 3. The structure of the present invention is simpler and more efficient, which improves space utilization and reduces production costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a schematic side view of the overall structure of an optical structure of a headlight showing a starry sky effect according to the present invention; Figure 2 A cross-sectional schematic diagram of an optical structure of a vehicle light presenting a starry sky effect according to the present invention; Figure 3 A schematic diagram of the light path of a light emitting element, a light concentrator and a horizontal light guide plate of an optical structure of a headlight presenting a starry sky effect according to the present invention; Figure 4 A schematic diagram of the light path of the light emitting element, the vertical light guide plate and the protruding optical structure of the optical structure of a headlight presenting a starry sky effect according to the present invention; Figure 5 The diagram is a light path diagram of a total reflection structure of a headlight optical structure presenting a starry sky effect according to the present invention.
[0024] In the figure: 1. light guide module; 2. light emitting module; 11. horizontal light guide plate; 12. concentrator; 13. vertical light guide plate; 14. raised optical structure; 15. total reflection structure; 16. aluminum plating layer; 21. light emitting element; 22. light emitting substrate. DETAILED DESCRIPTION
[0025] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.
[0026] Example: Figure 1 - Figure 5 As shown, the present invention provides a car light optical structure showing a starry sky effect, which can also be said to be a technical solution for a car light optical structure with a large viewing angle: like Figure 1 and Figure 2 As shown, the optical structure includes a light guide module 1 and a light emitting module 2, wherein the light emitting module 2 is fixedly connected to the light guide module 1, the light guide module 1 includes a horizontal light guide plate 11, a light concentrator 12 and a vertical light guide plate 13, wherein the vertical light guide plate 13 is L-shaped, the long plate ends of the horizontal light guide plate 11 and the vertical light guide plate 13 are perpendicular to each other, the short plate end of the vertical light guide plate 13 is parallel to the horizontal light guide plate 11, the long plate end of the vertical light guide plate 13 is fixedly connected to the light concentrator 12, the long plate end of the vertical light guide plate 13 is located between the short plate end and the light concentrator 12, and the horizontal light guide plate 11 is L-shaped. The flat light guide plate 11 and the concentrator 12 are fixedly connected, and the concentrator 12 is located at the vertical connection between the long plate ends of the horizontal light guide plate 11 and the vertical light guide plate 13. The light-emitting module 2 includes a light-emitting element 21 and a light-emitting substrate 22, and the light-emitting element 21 and the light-emitting substrate 22 are fixedly connected. The vertical light guide plate 13 passes through the light-emitting substrate 22, and the light-emitting substrate 22 and the vertical light guide plate 13 are fixedly connected. The light-emitting substrate 22 and the horizontal light guide plate 11 are located on both sides of the vertical light guide plate 13, and the light-emitting element 21 is located between the light-emitting substrate 22 and the vertical light guide plate 13.
[0027] The light-emitting module 2 emits light, and the light guide module 1 conducts the incident light in multiple angles and directions. The light-emitting element 21 emits light, and part of the light is incident from one side of the horizontal light guide plate 11 through the concentrator 12. After being transmitted by the horizontal light guide plate 11, the light is emitted from irregular directions. Part of the light is directly incident on the long plate end of the vertical light guide plate 13. After being transmitted by the long plate end of the vertical light guide plate 13, the light is emitted from irregular directions. After being refracted by the short plate end of the vertical light guide plate 13 and the horizontal light guide plate 11, the entire window is illuminated, achieving wide-angle lighting and forming a starry sky-like lighting effect.
[0028] like Figure 2 As shown, an aluminum coating layer 16 is provided on the short plate end of the vertical light guide plate 13 , and the aluminum coating layer 16 is located on one side of the horizontal light guide plate 11 .
[0029] When the light is emitted from the long board end of the vertical light guide plate 13 to the aluminum coating 16, the aluminum coating 16 refracts the light again, so that the light illuminates the area below the short board end of the vertical light guide plate 13, thereby increasing the lighting viewing angle and enhancing the lighting effect.
[0030] like Figure 1 , Figure 2 and Figure 4 As shown, a protruding optical structure 14 is provided on the long plate end of the vertical light guide plate 13 , and the protruding optical structure 14 is located on one side of the horizontal light guide plate 11 .
[0031] The raised optical structure 14 can make the light refract and fully reflect at the same time, providing more and irregular emission angles for the light. The emitted light is then reflected by the aluminum-plated layer 16 to achieve lighting at a wide viewing angle.
[0032] like Figure 2 As shown, the raised optical structure 14 is polygonal.
[0033] The hypotenuse angle of the raised optical structure 14 is the total reflection angle of the visible light wavelength. Different raised optical structures 14 provide different refraction and total reflection paths to form different lighting effects.
[0034] The sidewalls of the raised optical structure 14 are coated with a semi-reflective and semi-transparent film layer.
[0035] The semi-reflective and semi-transparent film layer can eliminate stray light and adjust the refraction and transmission ratio of incident light to achieve a light splitting effect.
[0036] like Figure 1 and Figure 2 As shown, a total reflection structure 15 is provided on the horizontal light guide plate 11 , and the total reflection structure 15 is located near the light output end of the horizontal light guide plate 11 .
[0037] The total reflection structure 15 is disposed at a position near the light-emitting end of the horizontal light guide plate 11 , so that the light is illuminated at a larger viewing angle after being reflected by the total reflection structure 15 .
[0038] like Figure 2 and Figure 5 As shown, the total reflection structure 15 is composed of a plurality of depressions and protrusions.
[0039] The total reflection structure 15 is composed of a plurality of depressions and protrusions and is an irregular structure, which can allow light to be emitted from irregular directions, thereby increasing the lighting viewing angle and making the lighting effect look like a starry sky.
[0040] like Figure 2 As shown, an aluminum coating 16 is provided on the surface of the horizontal light guide plate 11 facing the vertical light guide plate 13 . The aluminum coating 16 is located between the total reflection structure 15 and the concentrator 12 . The aluminum coating 16 is located on one side of the vertical light guide plate 13 .
[0041] The aluminum coating 16 can reduce the loss of light in the horizontal light guide plate 11 before entering the total reflection structure 15, thereby improving the star-filled lighting effect.
[0042] like Figure 2-Figure 4 As shown, the position of the light emitting element 21 on the light emitting substrate 22 corresponds to the concentrator 12 and the protruding optical structure 14 .
[0043] The light emitting element 21 and the concentrator 12 and the raised optical structure 14 are arranged correspondingly, so that the amount of light incident on the concentrator 12 and the raised optical structure 14 can be maximized, thereby obtaining a stronger lighting effect, while improving resource utilization and reducing the cost of achieving the same lighting effect.
[0044] The working principle of the present invention is as follows: the light emitting element 21 emits light, which is focused by the concentrator 12 and is emitted from one side of the horizontal light guide plate 11. After being transmitted by the horizontal light guide plate 11 and reflected by the aluminum-plated layer 16, the light is emitted into the total reflection structure 15. After being transmitted by the total reflection structure 15, the light is emitted from irregular directions, lighting up the area above the horizontal light guide plate 11, thereby forming a wide-angle lighting. The light emitted by the light emitting element 21 is simultaneously emitted into the long plate end of the vertical light guide plate 13, after being transmitted by the vertical light guide plate 13, it is emitted into the raised optical structure 14. After being transmitted by the raised optical structure 14, the light is emitted from different angles. Part of the emitted light is emitted onto the aluminum-plated layers 16 of the horizontal light guide plate 11 and the vertical light guide plate 13, and then reflected by the aluminum-plated layer 16, thereby achieving a wide-angle lighting effect.
[0045] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. An optical structure of a car light showing a starry sky effect, characterized in that: The optical structure comprises a light guide module (1) and a light emitting module (2), wherein the light emitting module (2) and the light guide module (1) are fixedly connected, wherein the light guide module (1) comprises a horizontal light guide plate (11), a light concentrator (12) and a vertical light guide plate (13), wherein the vertical light guide plate (13) is L-shaped, wherein the long plate ends of the horizontal light guide plate (11) and the vertical light guide plate (13) are perpendicular to each other, wherein the short plate end of the vertical light guide plate (13) is parallel to the horizontal light guide plate (11), wherein the long plate end of the vertical light guide plate (13) is fixedly connected to the light concentrator (12), wherein the long plate end of the vertical light guide plate (13) is located between the short plate end and the light concentrator (12), and wherein the horizontal light guide plate The light emitting module (2) comprises a light emitting element (21) and a light emitting substrate (22), the light emitting element (21) and the light emitting substrate (22) are fixedly connected, the vertical light guide plate (13) passes through the light emitting substrate (22), the light emitting substrate (22) and the vertical light guide plate (13) are fixedly connected, the light emitting substrate (22) and the horizontal light guide plate (11) are located on both sides of the vertical light guide plate (13), and the light emitting element (21) is located between the light emitting substrate (22) and the vertical light guide plate (13).
2. The optical structure of a car light presenting a starry sky effect according to claim 1, characterized in that: An aluminum coating layer (16) is provided on the short plate end of the vertical light guide plate (13), and the aluminum coating layer (16) is located on one side of the horizontal light guide plate (11).
3. The optical structure of a car light presenting a starry sky effect according to claim 2, characterized in that: A protruding optical structure (14) is provided on the long plate end of the vertical light guide plate (13), and the protruding optical structure (14) is located on one side of the horizontal light guide plate (11).
4. The optical structure of a car light presenting a starry sky effect according to claim 3, characterized in that: The raised optical structure (14) is polygonal.
5. The optical structure of a car light presenting a starry sky effect according to claim 4, characterized in that: The side wall of the raised optical structure (14) is plated with a semi-reflective and semi-transparent film layer.
6. The optical structure of a car light presenting a starry sky effect according to claim 1, characterized in that: A total reflection structure (15) is provided on the horizontal light guide plate (11), and the total reflection structure (15) is located near the light output end of the horizontal light guide plate (11).
7. The optical structure of a car light presenting a starry sky effect according to claim 6, characterized in that: The total reflection structure (15) consists of a plurality of depressions and protrusions.
8. The optical structure of a car light presenting a starry sky effect according to claim 7, characterized in that: An aluminum coating layer (16) is provided on a surface of the horizontal light guide plate (11) facing the vertical light guide plate (13); the aluminum coating layer (16) is located between the total reflection structure (15) and the concentrator (12); and the aluminum coating layer (16) is located on one side of the vertical light guide plate (13).
9. The optical structure of a car light presenting a starry sky effect according to claim 2, characterized in that: The position of the light-emitting element (21) on the light-emitting substrate (22) corresponds to the condenser (12) and the protruding optical structure (14).