Thick-wall light guide structure, automobile lamp and automobile
By setting convex portions and auxiliary reflection surfaces on the light inlet side of the thick-walled light guide structure, the incident and reflection path of light is optimized, and the problem that the thick-walled light guide structure in the prior art requires multiple LED light sources, achieving more efficient light utilization and uniform lighting effects.
Patent Information
- Application Number
- CN202421688647.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-16
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-07-16
AI Technical Summary
When used with LED light sources, existing thick-walled light guide structures require more LED light sources to achieve ideal lighting effects, resulting in inefficiency, complex circuit board design, increased thermal risk and high production costs.
A thick-walled light guide structure is designed, including a thick-walled light guide body, a convex portion on the light-incoming side, an auxiliary reflective surface and an outgoing surface. The end surface of the convex portion facing away from the thick-walled light guide body forms an incoming surface, and the auxiliary reflection surface is located on the circumferential surface of the convex portion, and the incident and reflection paths of light are optimized through these structures.
By optimizing the light path, the loss of light during propagation is reduced, the utilization efficiency of light sources is improved, the light energy loss is reduced, and the uniformity of light output is ensured.
Smart Images
Figure CN222747119U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of automobile lighting technology, and in particular to a thick-walled light guide structure, a lamp and an automobile. Background Art
[0002] With the advancement of industrialization, cars have become an indispensable means of transportation in people's lives. As an important part of automobiles, the design and performance requirements of headlights are constantly improving and refining to further improve the lighting and lighting effects of headlights. Among them, thick-walled light guide structures, as a commonly used optical material in headlights, can evenly distribute the light emitted by LED light sources, thereby ensuring excellent lighting effects and showing broad application prospects.
[0003] However, when the existing thick-walled light guide structure is used with an LED light source, in order to achieve the desired lighting effect, more LED light sources are often required. This not only leads to low efficiency, but also increases the complexity and thermal risk of circuit board design. In addition, more LED light sources also mean higher production costs, which is contrary to the current trend of major automotive lighting suppliers to reduce production costs and improve market competitiveness. Utility Model Content
[0004] The purpose of the present application is to provide a thick-walled light guide structure, a vehicle lamp and a vehicle in view of the deficiencies in the above-mentioned prior art.
[0005] To achieve the above purpose, the technical solution adopted in the embodiment of the present application is as follows:
[0006] An embodiment of the present application provides a thick-walled light guide structure, including a thick-walled light guide body, a convex portion is arranged on the light incident side of the thick-walled light guide body, the end face of the convex portion facing away from the thick-walled light guide body is the light incident surface, the thick-walled light guide body also has a light emitting surface, the peripheral side surface of the convex portion has an auxiliary reflection surface, a first light ray incident through the light incident surface is emitted from the light emitting surface, and a second light ray incident through the light incident surface is reflected by the auxiliary reflection surface and then emitted from the light emitting surface.
[0007] Optionally, the auxiliary reflecting surface is an arc-shaped surface concave inside the convex portion.
[0008] Optionally, the auxiliary reflection surface is a plurality of arc-shaped surfaces concave in the convex portion, and the plurality of arc-shaped surfaces are spliced in sequence.
[0009] Optionally, the second light incident through the light incident surface is reflected by the auxiliary reflection surface and then emitted in parallel from the light emitting surface.
[0010] Optionally, the convex portion is a table, and an end of the table away from the thick-walled light guide body is a small end.
[0011] Optionally, the light incident surface is a curved surface that is concave inside the convex portion.
[0012] Optionally, a plurality of convex portions are provided on the light incident side of the thick-walled light guide body.
[0013] Optionally, the thick-walled light guide structure further includes a concentrator disposed on the light incident surface, and the light emitted by the light source is incident on the convex portion through the concentrator.
[0014] Optionally, the thick-walled light guide body also has a first reflection surface and a second reflection surface located between the light incident surface and the light emitting surface, and the first light incident through the light incident surface is sequentially reflected by the first reflection surface and the second reflection surface to the light emitting surface, and the second light incident through the light incident surface is sequentially reflected by the auxiliary reflection surface, the first reflection surface and the second reflection surface to the light emitting surface.
[0015] Optionally, the first reflecting surface is arranged in parallel with the second reflecting surface.
[0016] Optionally, the first reflecting surface, the second reflecting surface and / or the light emitting surface are provided with a pattern structure.
[0017] An embodiment of the present application also provides a vehicle lamp, comprising a light source and any one of the above-mentioned thick-walled light guide structures, wherein the thick-walled light guide structure is located on the light emitting side of the light source.
[0018] An embodiment of the present application also provides a car, comprising any of the above-mentioned headlights.
[0019] The beneficial effects of this application include:
[0020] The present application provides a thick-walled light guide structure, including a thick-walled light guide body, a convex portion is provided on the light incident side of the thick-walled light guide body, the end face of the convex portion facing away from the thick-walled light guide body is the light incident face, the thick-walled light guide body also has a light emitting face, the peripheral side surface of the convex portion has an auxiliary reflection face, the first light incident through the light incident face is emitted from the light emitting face, and the second light incident through the light incident face is reflected by the auxiliary reflection face and then emitted from the light emitting face. By providing a convex portion on the light incident side of the thick-walled light guide body, and forming a light incident face on the end face of the convex portion facing away from the thick-walled light guide body, the incident light can effectively enter the thick-walled light guide body. The thick-walled light guide body also has a light emitting face to ensure that the light can be emitted from a specific position. In addition, at least part of the surface of the peripheral side of the convex portion is designed as an auxiliary reflection face, which greatly improves the utilization efficiency of the light. After the first light incident through the light incident face enters the interior of the thick-walled light guide body, it can be directly emitted from the light emitting face. After entering the thick-walled light guide body, the second light is first reflected by the auxiliary reflection surface, changing its propagation path, and finally emitted from the light emitting surface, which improves the light emission efficiency and ensures the uniformity of light emission. Therefore, by designing a reasonable light path, the loss of light in the propagation process is reduced, so that more light can be effectively emitted from the light emitting surface, improving the utilization efficiency of the light source and reducing the loss of light energy. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.
[0022] Figure 1 One of the structural schematic diagrams of a thick-walled light guide structure provided in an embodiment of the present application;
[0023] Figure 2 A second structural schematic diagram of a thick-walled light guide structure provided in an embodiment of the present application;
[0024] Figure 3 is a light path diagram of the second light incident through the light incident surface;
[0025] Figure 4 It is the optical path diagram of the light incident through the light incident surface.
[0026] Icon: 1-convex part; 2-light incident surface; 3-auxiliary reflection surface; 4-first reflection surface; 5-second reflection surface; 6-light exit surface. DETAILED DESCRIPTION
[0027] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.
[0028] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. It should be noted that, in the absence of conflict, the various features in the embodiments of the present application can be combined with each other, and the combined embodiments are still within the scope of protection of the present application.
[0029] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.
[0030] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.
[0031] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0032] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0033] The present application embodiment provides a thick-walled light guide structure, such as Figures 1 to 4 As shown, it includes a thick-walled light guide body, a convex portion 1 is arranged on the light incident side of the thick-walled light guide body, the end face of the convex portion 1 facing away from the thick-walled light guide body is a light incident surface 2, the thick-walled light guide body also has a light emitting surface 6, the peripheral surface of the convex portion 1 has an auxiliary reflection surface 3, the first light incident through the light incident surface 2 is emitted from the light emitting surface 6, and the second light incident through the light incident surface 2 is reflected by the auxiliary reflection surface 3 and then emitted from the light emitting surface 6.
[0034] By providing a convex portion 1 on the light incident side of the thick-walled light guide body, and forming a light incident surface 2 on the end face of the convex portion 1 facing away from the thick-walled light guide body, the incident light can effectively enter the thick-walled light guide body. The thick-walled light guide body also has a light emitting surface 6 to ensure that the light can be emitted from a specific position. In addition, at least part of the surface around the convex portion 1 is designed as an auxiliary reflection surface 3, which greatly improves the utilization efficiency of the light. After the first light ray incident through the light incident surface 2 enters the interior of the thick-walled light guide body, it can be directly emitted from the light emitting surface 6. After entering the interior of the thick-walled light guide body, the second light ray is first reflected by the auxiliary reflection surface 3, changing its propagation path, and finally emitted from the light emitting surface 6, thereby improving the light emission efficiency and ensuring the uniformity of the light emission. Therefore, by designing a reasonable light path, the loss of light in the propagation process is reduced, so that more light can be effectively emitted from the light emitting surface 6, thereby improving the utilization efficiency of the light source and reducing the loss of light energy.
[0035] Optionally, the thick-walled light guide structure further includes a concentrator disposed on the light incident surface 2 , and the light emitted by the light source is incident on the incident convex portion 1 through the concentrator.
[0036] Specifically, Figure 1 and Figure 2 As shown, in order to further improve the light effect and ensure the uniformity of the light, a concentrator is arranged on the light incident surface 2. The main function of the concentrator is to concentrate and guide the light emitted by the light source to the convex portion 1, so that the light emitted by the light source is incident on the convex portion 1 through the concentrator. Through the design of the concentrator, the angle and intensity of the incident light can be effectively controlled, thereby improving the utilization efficiency of the light. Specifically, the light emitted by the light source first passes through the concentrator, and the concentrator converges the light so that it can enter the thick-walled light guide body in a more efficient way, reducing the scattering and loss of light. In order to optimize the incident effect of the light, the plane of the light source is set to be perpendicular to the incident direction of the concentrator to ensure that the light emitted by the light source can be vertically incident on the concentrator, thereby maximizing the concentration and incident efficiency of the light. The concentrator improves the concentration of the light and reduces the loss and scattering of the incident light. The setting of the auxiliary reflection surface 3 can change the propagation mode of the light, so that more light can be effectively emitted from the light exit surface 6. Through the cooperation of the concentrator and the auxiliary reflection surface 3, fewer light sources can achieve the expected lighting effect.
[0037] Optionally, the light incident surface 2 is a curved surface concave inside the convex portion 1 .
[0038] Specifically, Figure 1 and Figure 2As shown, the light incident surface 2 is designed to be a curved surface concave in the convex part 1. The curvature of the curved surface allows light to be incident on the thick-walled light guide body from different angles, which can significantly increase the incident range of light, reduce the number of light sources, and effectively avoid the concentration and excessive concentration of light, thereby improving the overall light efficiency of the thick-walled light guide structure. Specifically, the light incident from the curved surface to the inside of the thick-walled light guide body includes a first light and a second light. The first light is a light whose incident direction is parallel to or at a small angle to the optical axis of the concentrator, and this part of the light can be directly incident on the light exit surface 6. The second light is a light whose incident direction is at a large angle to the optical axis of the concentrator, and this part of the light is incident on the peripheral surface of the convex part 1. The range of the peripheral surface where light can be incident is designed as an auxiliary reflection surface 3, so that the second light can be reflected to the light exit surface 6 through the auxiliary reflection surface 3. Therefore, through the coordination of the curved surface, the concentrator and the auxiliary reflection surface 3, it is possible to save the number of light sources, expand the illumination area, improve the light efficiency, and enhance the uniformity of lighting.
[0039] Optionally, the convex portion 1 is a table, and the end of the table away from the thick-walled light guide body is a small end.
[0040] Specifically, Figure 1 and Figure 2 As shown, the convex part 1 can be designed as a table body, and the table body gradually expands along the light emitting direction of the concentrator, that is, the end of the table body away from the thick-walled light guide body is a small end, and the end close to the thick-walled light guide body is an expanded end. As a result, the curved surface at the small end first receives the light from the concentrator, and diffuses and propagates it to the inside of the table body through the setting of the curved surface. At this time, the table body also gradually expands. This design helps to maintain the propagation direction and uniformity of the light and improve the utilization efficiency of the light. In addition, the edge of the table body can correspond to the edge of the thick-walled light guide body to ensure the stability and consistency of the structure, and reduce the reflection and leakage of light at the edge of the structure, thereby improving the utilization efficiency and emission uniformity of the light. In addition, the gradually expanding angle design of the table body should match the concave curvature design of the curved surface, so that the second light can propagate along a predetermined path after entering the thick-walled light guide body, ensuring that the second light incident on the auxiliary reflection surface 3 on the side of the table body can be reflected to the light emitting surface 6 through the auxiliary reflection surface 3, and will not be reflected to other areas, thereby avoiding light loss and improving the utilization efficiency and lighting effect of light.
[0041] Optionally, the auxiliary reflecting surface 3 is an arc-shaped surface concave inside the convex portion 1 .
[0042] Specifically, the auxiliary reflection surface 3 is designed as an arc surface concave in the convex part 1, which corresponds to the design of the light incident surface 2. This concave arc surface can accurately control the reflection angle and path of the second light, ensuring that the second light is emitted from the light exit surface 6 of the thick-walled light guide body, thereby avoiding the loss of light in other areas inside the light guide structure.
[0043] Optionally, the auxiliary reflection surface 3 is a plurality of arc-shaped surfaces concave in the convex portion 1 , and the plurality of arc-shaped surfaces are spliced in sequence.
[0044] Specifically, Figure 1 and Figure 2 As shown, through reasonable curvature and quantity design, each curved surface can effectively control the reflection angle and path of the light, ensuring that the second light incident on the auxiliary reflection surface 3 from different angles can be reflected more evenly to the light-emitting surface 6 through the corresponding curved surface, ensuring that the light is emitted from the light-emitting surface 6 of the thick-walled light guide body evenly and efficiently.
[0045] Optionally, the second light incident through the light incident surface 2 is reflected by the auxiliary reflection surface 3 and then emitted in parallel from the light emitting surface 6 .
[0046] Specifically, Figure 3 As shown, by setting the light incident surface 2 as a curved surface, the incident range of the light can be diffused, so that a small number of light sources can achieve a wide range of lighting effects, and then the convex portion 1 is set as a platform, and the shape design of the platform is intended to guide the light incident through the curved surface and effectively guide it into the thick-walled light guide body. In addition, the peripheral side surface of the platform is set as a sequentially spliced arc surface as an auxiliary reflection surface 3, which ensures the stability and consistency of the light during the reflection process, avoids the scattering and loss of light, so that the second light incident on the auxiliary reflection surface 3 from different angles through the curved surface can be uniformly reflected to the light emitting surface 6 along the light emitting direction of the light source through the corresponding arc surface, and is emitted from the light emitting surface 6 in parallel, efficiently and uniformly, avoiding the intersection of light and improving the lighting effect.
[0047] Optionally, a plurality of protrusions 1 are provided on the light incident side of the thick-walled light guide body.
[0048] Specifically, Figure 1 and Figure 2 As shown, the light incident side of the thick-walled light guide body is provided with a plurality of convex parts 1, each convex part 1 corresponds to a light source, and the light emitted by each light source enters the corresponding convex part 1 after passing through the concentrator and the light incident surface 2, and directly enters or is reflected through the auxiliary reflection surface 3 to the corresponding light exiting surface 6 area. In this process, the light from different light sources propagates in different convex parts 1, ensuring that the propagation of light from the light source to the light exiting surface 6 is independent and isolated, and will not be affected by the light emitted by the adjacent light source, avoiding the occurrence of light crossover and light channeling, thereby ensuring the stability and uniformity of the lighting.
[0049] Optionally, the thick-walled light guide body also has a first reflection surface 4 and a second reflection surface 5 located between the light incident surface 2 and the light emitting surface 6, and the first light incident through the light incident surface 2 is reflected to the light emitting surface 6 via the first reflection surface 4 and the second reflection surface 5 in sequence, and the second light incident through the light incident surface 2 is reflected to the light emitting surface 6 via the auxiliary reflection surface 3, the first reflection surface 4 and the second reflection surface 5 in sequence.
[0050] Specifically, Figure 3 and Figure 4 As shown, the propagation path of the first light is: incident on the first reflection surface 4 through the light incident surface 2, first totally reflected on the first reflection surface 4 to the second reflection surface 5, then totally reflected on the second reflection surface 5 to the light emitting surface 6, and finally emitted from the light emitting surface 6; the propagation path of the second light is: incident on the auxiliary reflection surface 3 through the light incident surface 2, first totally reflected on the first reflection surface 4 through the auxiliary reflection surface 3, then totally reflected on the first reflection surface 4 to the second reflection surface 5, then totally reflected on the second reflection surface 5 to the light emitting surface 6, and finally emitted from the light emitting surface 6. The design of the first reflection surface 4 and the second reflection surface 5 not only controls the propagation path of the light, but also optimizes the reflection angle and direction of the light, avoids the unevenness or direction deviation that may occur when the light is emitted, ensures the uniformity and consistency of the light when it is emitted from the light emitting surface 6 of the thick-walled light guide body, and achieves efficient lighting effects.
[0051] Optionally, the first reflecting surface 4 and the second reflecting surface 5 are arranged in parallel.
[0052] Specifically, Figure 4 As shown, the first reflecting surface 4 and the second reflecting surface 5 are arranged in parallel, so that the light incident through the light incident surface 2 keeps its propagation direction unchanged after being reflected on the two reflecting surfaces in turn, and the light can remain parallel and gradually focus and propagate along the optical axis direction of the concentrator, and finally be emitted from the light emitting surface 6 in parallel along the optical axis direction of the concentrator. The angle and position of the reflecting surface need to be precisely adjusted to ensure that the light can propagate along the expected path after reflection. For example, the angle between the first reflecting surface 4 and the optical axis of the concentrator is 45°, and the angle between the second reflecting surface 5 and the optical axis of the concentrator is 135°. At this time, the light can be concentrated and focused to the middle position after reflection, and emitted from the middle position of the light emitting surface 6, avoiding the deviation and uneven distribution of the light that may occur during the emission process, so as to more effectively guide the light beam to the required target area, reduce the appearance of glare and shadows, and provide a more uniform and soft lighting effect.
[0053] Optionally, the first reflecting surface 4, the second reflecting surface 5 and / or the light emitting surface 6 are provided with a pattern structure.
[0054] Specifically, Figure 1 and Figure 2As shown, the pattern structure includes but is not limited to a mesh pattern or a fisheye pattern to further improve the uniformity of light emission and the performance of the optical system. The mesh pattern structure can make the reflected light evenly distributed over a wider angle. This scattering effect helps to eliminate possible light spots or areas of uneven light intensity, thereby improving the uniformity of light output. The fisheye pattern structure can more accurately control the refraction and reflection angles of light. By accurately depicting the fisheye pattern, the angular distribution of light at the time of emission can be adjusted so that the light can be more concentrated or diffused, thereby meeting specific optical needs and application scenarios.
[0055] The embodiment of the present application also provides a vehicle lamp, comprising a light source and any of the above-mentioned thick-walled light guide structures, wherein the thick-walled light guide structure is located on the light-emitting side of the light source. After being emitted from the light source, the light is guided and optimized reflected by the thick-walled light guide structure to form a uniform and bright lighting effect, which effectively improves the optical performance and energy efficiency. The light source can be LED, laser, etc., and the embodiment of the present application does not limit the type of light source. Since the vehicle lamp adopts the above-mentioned thick-walled light guide structure, it also has the same beneficial effects as the thick-walled light guide structure, which will not be repeated here.
[0056] The embodiment of the present application also provides a car, comprising any of the above-mentioned headlights. The above-mentioned headlights are integrated into the car to improve the lighting effect and / or signal display effect. Since the car adopts the above-mentioned headlights, it also has the same beneficial effects as the headlights, which will not be repeated here.
[0057] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A thick-walled light guide structure, characterized in that: The invention comprises a thick-walled light guide body, wherein a convex portion (1) is arranged on the light incident side of the thick-walled light guide body, the end surface of the convex portion (1) facing away from the thick-walled light guide body is a light incident surface (2), the thick-walled light guide body also has a light emitting surface (6), the peripheral surface of the convex portion (1) has an auxiliary reflection surface (3), a first light incident through the light incident surface (2) is emitted from the light emitting surface (6), and a second light incident through the light incident surface (2) is reflected by the auxiliary reflection surface (3) and then emitted from the light emitting surface (6).
2. The thick-walled light guide structure according to claim 1, characterized in that: The auxiliary reflection surface (3) is an arc-shaped surface that is concave inside the convex portion (1).
3. The thick-walled light guide structure according to claim 1, characterized in that: The auxiliary reflection surface (3) is a plurality of arc-shaped surfaces that are concave in the convex portion (1), and the plurality of arc-shaped surfaces are spliced in sequence.
4. The thick-walled light guide structure according to claim 1, characterized in that: The second light incident through the light incident surface (2) is reflected by the auxiliary reflection surface (3) and then emitted in parallel from the light emitting surface (6).
5. The thick-walled light guide structure according to any one of claims 1 to 4, characterized in that: The convex portion (1) is a platform, and the end of the platform away from the thick-walled light guide body is a small end.
6. The thick-walled light guide structure according to any one of claims 1 to 4, characterized in that: The light incident surface (2) is a curved surface that is concave inside the convex portion (1).
7. The thick-walled light guide structure according to any one of claims 1 to 4, characterized in that: A plurality of convex portions (1) are arranged on the light incident side of the thick-walled light guide body.
8. The thick-walled light guide structure according to any one of claims 1 to 4, characterized in that: The thick-walled light guide structure further comprises a condenser arranged on the light incident surface (2), and the light emitted by the light source is incident on the convex portion (1) through the condenser.
9. The thick-walled light guide structure according to any one of claims 1 to 4, characterized in that: The thick-walled light guide body further comprises a first reflection surface (4) and a second reflection surface (5) located between the light incident surface (2) and the light emitting surface (6); a first light ray incident through the light incident surface (2) is sequentially reflected through the first reflection surface (4) and the second reflection surface (5) to the light emitting surface (6); and a second light ray incident through the light incident surface (2) is sequentially reflected through the auxiliary reflection surface (3), the first reflection surface (4) and the second reflection surface (5) to the light emitting surface (6).
10. The thick-walled light guide structure according to claim 9, characterized in that: The first reflecting surface (4) and the second reflecting surface (5) are arranged in parallel.
11. The thick-walled light guide structure according to claim 9, characterized in that: The first reflecting surface (4), the second reflecting surface (5) and / or the light emitting surface (6) are provided with a pattern structure.
12. A vehicle lamp, characterized in that: It comprises a light source and the thick-walled light guide structure according to any one of claims 1 to 11, wherein the thick-walled light guide structure is located at the light emitting side of the light source.
13. A car, characterized in that: The vehicle lamp comprising the vehicle lamp as claimed in claim 12.