Thick-wall light guide structure, automobile lamp and automobile
By designing a first pattern structure in a thick-walled light guide structure and using multiple first inclined surfaces for light reflection and diffusion, the problem of requiring multiple light sources in the prior art to achieve uniform lighting is solved, and efficient and uniform lighting effects are achieved and cost is reduced.
Patent Information
- Application Number
- CN202421691778.7
- 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
The existing thick-walled light guide structure requires more light sources to achieve uniform lighting, which increases the complexity of circuit board design and thermal risk, and increases production costs. At the same time, reducing the number of light sources will cause uneven light diffusion and affect the lighting effect.
A thick-walled light guide structure is designed, including a light-input surface, a first reflective surface and a light-out surface. The first reflective surface has a first pattern structure. Through a plurality of first inclined surfaces, uniform reflection and diffusion of light are achieved.
While reducing the number of light sources, the thick-walled light guide structure can still provide efficient and uniform lighting effects, balancing light efficiency and cost control, and improving the optical performance and energy efficiency of the headlights.
Smart Images
Figure CN222747120U_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 the light source, thereby ensuring excellent lighting effects and showing broad application prospects.
[0003] However, existing thick-walled light guide structures often require more light sources to achieve uniform lighting effects. This method increases the complexity and thermal risks of circuit board design. In addition, more 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. In order to overcome the above problems, some new types of automotive lights have begun to use fewer light sources to match thick-walled light guide structures. Although this reduces costs, it will cause the thick-walled light guide structure to be unable to diffuse light well, resulting in uneven light output, which affects the lighting effect. 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, the thick-walled light guide body having a light incident surface, a first reflection surface and a light emitting surface arranged in sequence along a light path, the first reflection surface having a first pattern structure, the first pattern structure including a plurality of first inclined surfaces, the plurality of first inclined surfaces being arranged in sequence at intervals along a direction perpendicular to the light path, the first light incident through the light incident surface being reflected by the plurality of first inclined surfaces and then emitted from the light emitting surface.
[0007] Optionally, the first pattern structure further includes a first straight surface, and a plurality of first inclined surfaces are symmetrically arranged on both sides of the first straight surface.
[0008] Optionally, a first angle is formed between two adjacent first inclined surfaces.
[0009] Optionally, there is a second included angle between the orthographic projections of adjacent sides of two adjacent first inclined surfaces in the plane where the first straight surface is located.
[0010] Optionally, the distance between two adjacent first inclined surfaces located on one side of the first straight surface increases successively in a direction away from the first straight surface.
[0011] Optionally, the first pattern structure further includes a connecting surface located between two adjacent first inclined surfaces, and the connecting surface connects the two adjacent first inclined surfaces respectively, so that the first pattern structure is arranged in a broken line shape.
[0012] Optionally, a convex portion is provided on the light incident side of the thick-walled light guide body, the light incident surface is located at the end surface of the convex portion facing away from the thick-walled light guide body, the first reflection surface is located at the end surface of the convex portion close to the thick-walled light guide body, and the peripheral side surface of the convex portion has an auxiliary reflection surface, and the second light incident through the light incident surface is reflected by the auxiliary reflection surface and the first pattern structure in sequence and then emitted from the light output surface.
[0013] Optionally, the first reflective surface has a plurality of first pattern structures, and the light incident side of the thick-walled light guide body is provided with a plurality of convex portions, and the convex portions are arranged corresponding to the first pattern structures.
[0014] Optionally, the thick-walled light guide body also has a second reflection surface located between the first reflection surface and the light emitting surface, and the first light incident through the light incident surface is sequentially reflected by the first pattern structure 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 pattern structure and the second reflection surface to the light emitting surface.
[0015] 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.
[0016] 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.
[0017] An embodiment of the present application also provides a car, comprising any of the above-mentioned headlights.
[0018] The beneficial effects of this application include:
[0019] The present application provides a thick-walled light guide structure, including a thick-walled light guide body, which has a light incident surface, a first reflection surface and a light exit surface arranged in sequence along the light path. The light incident surface is responsible for receiving light emitted by an external light source and guiding the light into the interior of the thick-walled light guide body. The first reflection surface is located inside the thick-walled light guide body and has a first pattern structure. The first pattern structure includes a plurality of first inclined surfaces, which are arranged in sequence and spaced in a direction perpendicular to the light path. The first light incident on the first inclined surface will be reflected to form light emitted from different angles. This design enables the first light to be evenly distributed after entering the thick-walled light guide body and finally emitted from the light exit surface. The design of the first pattern structure not only plays an important role in reflecting light, but also plays a role in diffusing and uniformizing light. Through the precise arrangement and spacing of the first inclined surfaces, the incident first light can be effectively reflected and scattered, thereby forming a uniform light distribution, so that the thick-walled light guide structure can still provide efficient and uniform lighting effects while reducing the number of light sources, so that the headlight achieves a good balance between light efficiency and cost control. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] 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.
[0021] Figure 1 One of the structural schematic diagrams of a thick-walled light guide structure provided in an embodiment of the present application;
[0022] Figure 2 for Figure 1 A magnified view of middle;
[0023] Figure 3 A second structural schematic diagram of a thick-walled light guide structure provided in an embodiment of the present application;
[0024] Figure 4 A third structural schematic diagram of a thick-walled light guide structure provided in an embodiment of the present application;
[0025] Figure 5 is a light path diagram of the second light incident through the light incident surface;
[0026] Figure 6 It is the optical path diagram of the light incident through the light incident surface.
[0027] Icon: 1-convex part; 2-light incident surface; 3-auxiliary reflection surface; 4-first reflection surface; 41-first inclined surface; 42-first straight surface; 43-connecting surface; 5-second reflection surface; 6-light emitting surface. DETAILED DESCRIPTION
[0028] 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.
[0029] 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.
[0030] 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.
[0031] 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.
[0032] 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.
[0033] 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.
[0034] The present application embodiment provides a thick-walled light guide structure, such as Figures 1 to 6 As shown, it includes a thick-walled light guide body, which has a light incident surface 2, a first reflection surface 4 and a light output surface 6 arranged in sequence along the light path, the first reflection surface 4 has a first pattern structure, and the first pattern structure includes a plurality of first inclined surfaces 41, and the plurality of first inclined surfaces 41 are arranged in sequence at intervals along a direction perpendicular to the light path, and the first light incident through the light incident surface 2 is reflected by the plurality of first inclined surfaces 41 and then output from the light output surface 6.
[0035] Specifically, the light incident surface 2 is responsible for receiving the light emitted by the external light source and guiding the light into the interior of the thick-walled light guide body. The first reflective surface 4 is located inside the thick-walled light guide body and has a first pattern structure. The first pattern structure includes a plurality of first inclined planes 41, and the first inclined planes 41 are arranged in sequence and spaced apart in a direction perpendicular to the light path. The first light incident on the first inclined plane 41 will be reflected to form light emitted from different angles. This design enables the first light to be evenly distributed after entering the thick-walled light guide body, and finally emitted from the light exit surface 6. The design of the first pattern structure not only plays an important role in reflecting light, but also plays a role in diffusing and uniformizing light. Through the precise arrangement and spacing of the first inclined planes 41, the incident first light can be effectively reflected and scattered, thereby forming a uniform light distribution, so that the thick-walled light guide structure can still provide efficient and uniform lighting effects while reducing the number of light sources, so that the car lights achieve a good balance between light efficiency and cost control.
[0036] 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 convex portion 1 through the concentrator.
[0037] Specifically, in order to further improve the lighting effect and ensure the uniformity of light, a concentrator is provided on the light incident surface 2. The main function of the concentrator is to concentrate the light emitted by the light source and guide it 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 manner, reducing the scattering and loss of light. In order to optimize the incident effect of 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 incident vertically on the concentrator, thereby maximizing the concentration and incident efficiency of the light. The concentrator improves the concentration of light and reduces the loss and scattering of incident light, so that fewer light sources can achieve the desired lighting effect.
[0038] Optionally, the first pattern structure further includes a first straight surface 42 , and a plurality of first inclined surfaces 41 are symmetrically arranged on both sides of the first straight surface 42 .
[0039] Specifically, Figure 1 and Figure 2 As shown, the light incident surface 2 is a concave curved surface design, so that the light entering from the external light source can be incident on the thick-walled light guide body at different angles. The curvature design of the curved surface cleverly utilizes the change in the incident angle of the light, so that the light can be initially dispersed when entering the thick-walled light guide body. Such a design makes the light no longer concentrated at one point or one direction, but enters the thick-walled light guide body at multiple angles, providing a good foundation for subsequent reflection and diffusion.
[0040] The first straight surface 42 of the first pattern knot faces the light incident surface 2, but due to the curvature design of the curved surface, only a small portion of the first light will directly hit the first straight surface 42, and most of the first light will hit the first inclined surfaces 41 symmetrically arranged on both sides of the first straight surface 42 at different angles. This design allows the light to be effectively dispersed in the initial stage, avoiding excessive concentration of light in one area.
[0041] The multiple first inclined surfaces 41 evenly reflect and diffuse the first light incident at different angles. Since the first inclined surfaces 41 are arranged symmetrically, each first inclined surface 41 can guide the light to different directions at different angles when reflecting the light, thereby achieving uniform distribution of the light. This multiple reflection and diffusion process enables the first light entering from the light incident surface 2 to be evenly distributed in the entire thick-walled light guide body after passing through the first straight surface 42 and the first inclined surface 41. Finally, the light that has been reflected and diffused is evenly emitted from the light emitting surface 6, thereby improving the uniformity and light efficiency of the lighting.
[0042] Optionally, a first angle is formed between two adjacent first inclined surfaces 41 .
[0043] Specifically, Figure 2As shown, with the first straight plane 42 as a reference, multiple first inclined planes 41 are gradually inclined at a certain first angle on the same side, that is, a first angle is formed between two adjacent first inclined planes 41. Such a design enables the light to be effectively dispersed and reflected when passing through these first inclined planes 41. The existence of the first angle ensures that the light can be gradually diffused during the transmission process between the multiple first inclined planes 41, avoiding excessive concentration and uneven distribution of the light. Through the precisely designed first angle, each first inclined plane 41 not only reflects the incident light, but also guides the light to different directions, further improving the uniformity and distribution effect of the light. This process of multiple reflections and gradual diffusion enables the light entering from the light incident surface 2 to be fully processed in the thick-walled light guide body, and finally evenly emitted from the light exit surface 6. It should be noted that the design of the first angle can be a specific angle value such as 1°, 2°, 3°, etc. The specific selection of the first angle can be adjusted according to the characteristics of the incident light and the structure of the thick-walled light guide body in actual applications to achieve the best optical performance.
[0044] Optionally, there is a second included angle between the orthographic projections of adjacent sides of two adjacent first inclined surfaces 41 in the plane where the first straight surface 42 is located.
[0045] Specifically, Figure 2 As shown, taking the first straight plane 42 as a reference, the multiple first inclined planes 41 symmetrically arranged on both sides thereof are not only gradually inclined at the first angle, but also by setting the second angle between the adjacent edges of the adjacent first inclined planes 41 in the plane where the first straight plane 42 is located, the gradually inclined inclined plane design is used to achieve the diffusion of light at different angles and directions. This dual-angle design (i.e., the design of the first angle and the second angle) ensures that the light can be gradually diffused during the transmission process between the multiple first inclined planes 41, avoiding excessive concentration and uneven distribution of light. Therefore, when the first light passes through the first inclined plane 41, it is not only effectively reflected, but also guided to different directions, further improving the uniformity and distribution effect of the light. This process of multiple reflections and gradual diffusion allows the first light entering from the light incident surface 2 to be fully processed in the thick-walled light guide body, and finally evenly emitted from the light exit surface 6. Similarly, the design of the second angle can be a specific angle value such as 1°, 2°, 3°, etc. The specific selection of the second angle can be adjusted according to the characteristics of the incident light in actual applications and the structure of the thick-walled light guide body to achieve the best optical performance. In some variations, the first straight surface 42 can be omitted, and the edge of one or more first inclined surfaces 41 facing the light source away from the light incident surface 2 is used as a reference, and multiple first inclined surfaces 41 symmetrically arranged on both sides are set to gradually tilt at the first angle. In this embodiment, the plane where the aforementioned first straight surface 42 is located is also the extension plane of the first reflective surface 4.
[0046] Optionally, the distance between two adjacent first inclined surfaces 41 located on one side of the first straight surface 42 increases sequentially in a direction away from the first straight surface 42 .
[0047] Specifically, Figure 2 As shown, since the first inclined plane 41 is gradually inclined in two directions, the spacing between two adjacent first inclined planes 41 at different positions will be different, that is, there is a maximum spacing and a minimum spacing between two adjacent first inclined planes 41. The maximum spacing between two adjacent first inclined planes 41 located on one side of the first straight plane 42 increases in a direction away from the first straight plane 42, and the minimum spacing between two adjacent first inclined planes 41 also increases in a direction away from the first straight plane 42. For example, the maximum spacing between the first first inclined plane 41 (i.e., the first inclined plane 41 closest to the first straight plane 42) and the second first inclined plane 41 is 0.02mm, and the minimum spacing is 0.015mm; the maximum spacing between the second first inclined plane 41 and the third first inclined plane 41 is 0.035mm, and the minimum spacing is 0.03mm; the maximum spacing between the third first inclined plane 41 and the fourth first inclined plane 41 is 0.05mm, and the minimum spacing is 0.045mm, and so on. The design of this spacing variation should be designed according to the incident angle of the light, so that the reflection and diffusion effects of the light on each first inclined surface 41 can be gradually optimized, thereby achieving a more uniform light distribution and improving the overall lighting effect.
[0048] Optionally, the first pattern structure further includes a connecting surface 43 located between two adjacent first inclined surfaces 41 , and the connecting surface 43 connects two adjacent first inclined surfaces 41 , respectively, so that the first pattern structure is arranged in a broken line shape.
[0049] Specifically, Figure 2 As shown, the connecting surface 43 in the first pattern structure is located between two adjacent first inclined surfaces 41, and each connecting surface 43 connects two adjacent first inclined surfaces 41. This design allows the first pattern structure to form a series of broken line arrangements in space. Moreover, the orthographic projections of two adjacent first inclined surfaces 41 overlap in the plane where the first straight surface 42 is located. This means that an acute angle is formed between the connecting surface 43 and the two adjacent first inclined surfaces 41, and the light incident into the thick-walled optical waveguide body will not hit the connecting surface 43, reducing the loss of light. The connecting surface 43 exists to connect the straight surface with the first inclined surfaces 41 on both sides and the two adjacent first inclined surfaces 41, rather than serving as a reflective surface to process the incident light. Therefore, the light is mainly concentrated on the first inclined surface 41 for reflection and diffusion, while the connecting surface 43 plays a role in maintaining the structural continuity and stability in the overall structure, further enhancing the efficiency of light transmission.
[0050] Optionally, a convex portion 1 is provided on the light incident side of the thick-walled light guide body, the light incident surface 2 is located at the end surface of the convex portion 1 facing away from the thick-walled light guide body, the first reflective surface 4 is located at the end surface of the convex portion 1 close to the thick-walled light guide body, and the peripheral surface of the convex portion 1 has an auxiliary reflective surface 3. The second light incident through the light incident surface 2 is reflected by the auxiliary reflective surface 3 and the first pattern structure in sequence and then emitted from the light emitting surface 6.
[0051] Specifically, Figure 5 As shown, the light incident surface 2 is located at the end surface of the convex portion 1 away from the thick-walled light guide body, and the first reflection surface 4 is located at the end surface of the convex portion 1 close to the thick-walled light guide body. In addition, an auxiliary reflection surface 3 is also provided on the peripheral surface of the convex portion 1. After entering the interior of the thick-walled light guide body, the second light incident through the light incident surface 2 is first reflected by the auxiliary reflection surface 3, changing its propagation path, and then reflected to the first reflection surface 4, and then reflected and diffused by the first pattern structure, and finally uniformly emitted from the light emitting surface 6. The auxiliary reflection surface 3 changes the propagation path of the light, so that more light can reach the first reflection surface 4 more effectively, reducing the loss of light in the propagation process, so that more light can be effectively emitted from the light emitting surface 6, improving the utilization efficiency of the light source, and reducing the loss of light energy. Through the combination of the auxiliary reflection surface 3 and the first pattern structure, the light path is optimized, the light emission efficiency and uniformity are improved, and a more efficient and uniform lighting effect is achieved.
[0052] Optionally, the first reflective surface 4 has a plurality of first pattern structures, and a plurality of convex portions 1 are arranged on the light incident side of the thick-walled light guide body, and the convex portions 1 are arranged corresponding to the first pattern structures.
[0053] Specifically, Figures 1 to 5 As shown, each convex portion 1 corresponds to a light source on the light incident side, and the light emitted by the light source directly enters the corresponding convex portion 1 after passing through the concentrator and the light incident surface 2. In the design of each convex portion 1, an auxiliary reflection surface 3 is provided, and these surfaces can effectively adjust and optimize the incident angle and path of the light. After being reflected by the auxiliary reflection surface 3, the light enters the corresponding first pattern structure, and the first pattern structure evenly reflects and diffuses the light to the corresponding light exiting surface 6 area. Through the close cooperation between each convex portion 1 and its corresponding light source, concentrator, light incident surface 2, auxiliary reflection surface 3 and first pattern structure, precise control and optimized diffusion of light are achieved. This design not only improves the utilization efficiency of light and the uniformity of lighting, but also effectively reduces the loss of light energy, further improving the energy efficiency ratio and performance stability of the overall lighting system. During this process, light from different light sources is reflected in the corresponding convex portion 1 through the corresponding auxiliary reflection surface 3 to the corresponding first pattern structure, ensuring that the propagation of light from the light source to the light output surface 6 is independent and isolated, and will not be affected by the light emitted by adjacent light sources, thereby avoiding the occurrence of light crossing and light leakage, and further ensuring the stability and uniformity of the lighting.
[0054] Optionally, the thick-walled light guide body also has a second reflection surface 5 located between the first reflection surface 4 and the light emitting surface 6, and the first light incident through the light incident surface 2 is reflected by the first pattern structure and the second reflection surface 5 to the light emitting surface 6 in sequence, and the second light incident through the light incident surface 2 is reflected by the auxiliary reflection surface 3, the first pattern structure and the second reflection surface 5 to the light emitting surface 6 in sequence.
[0055] Specifically, 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 straight surface 42 and multiple first inclined surfaces 41 of 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 second reflection surface 5 through the first straight surface 42 and multiple first inclined surfaces 41 of the first reflection surface 4, 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 second reflection surface 5 not only controls the propagation path of the light, but also optimizes the reflection angle and direction of the light, further avoiding the unevenness or direction deviation that may occur when the light is emitted, ensuring 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 achieving efficient lighting effects.
[0056] Optionally, the first reflecting surface 4 and the second reflecting surface 5 are arranged in parallel.
[0057] Specifically, Figure 6 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.
[0058] Optionally, the second reflecting surface 5 and / or the light emitting surface 6 is provided with a second pattern structure.
[0059] Specifically, Figures 3 to 5As shown, the second 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.
[0060] 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.
[0061] 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.
[0062] 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 the thick-walled light guide body comprises a light incident surface (2), a first reflection surface (4) and a light exiting surface (6) which are sequentially arranged along a light path, wherein the first reflection surface (4) has a first pattern structure, wherein the first pattern structure comprises a plurality of first inclined surfaces (41), wherein the plurality of first inclined surfaces (41) are sequentially arranged at intervals along a direction perpendicular to the light path, and a first light beam incident through the light incident surface (2) is reflected by the plurality of first inclined surfaces (41) and then exits from the light exiting surface (6).
2. The thick-walled light guide structure according to claim 1, characterized in that: The first pattern structure further comprises a first straight surface (42), and a plurality of the first inclined surfaces (41) are symmetrically arranged on both sides of the first straight surface (42).
3. The thick-walled light guide structure according to claim 2, characterized in that: A first angle is formed between two adjacent first inclined surfaces (41).
4. The thick-walled light guide structure according to claim 2 or 3, characterized in that: There is a second included angle between the orthographic projections of adjacent edges of two adjacent first inclined surfaces (41) in the plane where the first straight surface (42) is located.
5. The thick-walled light guide structure according to claim 2 or 3, characterized in that: The distance between two adjacent first inclined surfaces (41) located on one side of the first straight surface (42) increases sequentially in a direction away from the first straight surface (42).
6. The thick-walled light guide structure according to claim 2 or 3, characterized in that: The first pattern structure further comprises a connecting surface (43) located between two adjacent first inclined surfaces (41), and the connecting surface (43) respectively connects two adjacent first inclined surfaces (41), so that the first pattern structure is arranged in a broken line shape.
7. The thick-walled light guide structure according to claim 2 or 3, characterized in that: A convex portion (1) is provided on the light incident side of the thick-walled light guide body, the light incident surface (2) is located at the end surface of the convex portion (1) facing away from the thick-walled light guide body, the first reflection surface (4) is located at the end surface of the convex portion (1) close to the thick-walled light guide body, and the peripheral surface of the convex portion (1) has an auxiliary reflection surface (3), and a second light incident through the light incident surface (2) is sequentially reflected by the auxiliary reflection surface (3) and the first pattern structure and then emitted from the light emitting surface (6).
8. The thick-walled light guide structure according to claim 7, characterized in that: The first reflecting surface (4) has a plurality of first pattern structures, and the light incident side of the thick-walled light guide body is provided with a plurality of convex portions (1), and the convex portions (1) are arranged corresponding to the first pattern structures.
9. The thick-walled light guide structure according to claim 7, characterized in that: The thick-walled light guide body further comprises a second reflection surface (5) located between the first reflection surface (4) and the light emitting surface (6); a first light incident through the light incident surface (2) is sequentially reflected by the first pattern structure and the second reflection surface (5) to the light emitting surface (6); and a second light incident through the light incident surface (2) is sequentially reflected by the auxiliary reflection surface (3), the first pattern structure and the second reflection surface (5) to the light emitting surface (6).
10. The thick-walled light guide structure according to claim 7, 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.
11. 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 10, wherein the thick-walled light guide structure is located at the light output side of the light source.
12. A car, characterized in that: The vehicle lamp comprising the vehicle lamp according to claim 11.