Diffuse reflection optical system, vehicle lamp, and vehicle

Abstract

The utility model relates to a kind of diffuse reflection optical system, car light and vehicle, diffuse reflection optical system, including light source, light guide strip, light guide thick wall and homogenizing lens;Light source is used to output light;The light guide strip of light guide strip is towards the light exit surface of light source, and light guide strip is used to change the propagation direction of light;The light guide thick wall of light guide thick wall is towards the light exit surface of light guide strip, and light guide thick wall is used to conduct light and disturb the propagation path of light;Homogenizing lens homogenizing lens is oppositely arranged with the light exit surface of light guide thick wall, and homogenizing lens is used to disturb the propagation path of light.The utility model passes through multistage light guide and disturbing mechanism, effectively eliminates the direct characteristics of light, makes light fully diffuse in propagation process, finally outputs uniform diffuse reflection light spot, no visible pattern or bright spot, improves illumination uniformity and visual comfort.

Description

Technical Field

[0001] This utility model relates to the field of vehicle parts technology, specifically to a diffuse reflection optical system, a vehicle lamp, and a vehicle. Background Technology

[0002] In the field of vehicle lighting, light uniformity and diffuse reflection are crucial for visual comfort and safety.

[0003] Traditional automotive headlights often use direct light sources combined with light guide elements, but this results in uneven light distribution and the formation of visible patterns or light spots. For example, existing light guide structures often cannot effectively change the direction of light propagation within a limited space, causing bright and dark stripes or localized bright spots on the light-emitting surface, affecting aesthetics and performance. Utility Model Content

[0004] Based on the above description, this utility model provides a diffuse reflection optical system, a vehicle lamp, and a vehicle, aiming to solve the problems of poor uniformity and easy formation of visible patterns in existing vehicle lamps.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: In a first aspect, this utility model provides a diffuse reflection optical system, comprising: A light source, used to output light; A light guide strip, wherein the light-inlet surface of the light guide strip faces the light-outlet surface of the light source, and the light guide strip is used to change the propagation direction of the light; A light-guiding thick wall, the light-inlet surface of which faces the light-outlet surface of the light guide strip, is used to conduct the light and disrupt the propagation path of the light. A light-diffusing lens is disposed opposite to the light-emitting surface of the light-guiding thick wall, and the light-diffusing lens is used to disrupt the propagation path of the light.

[0006] Based on the above technical solution, the present invention can be further improved as follows.

[0007] Furthermore, the light guide thick wall is constructed in a figure-7 shape.

[0008] Furthermore, a slope is formed at the connection between the first surface of the light guide wall and the second surface of the light guide wall.

[0009] Furthermore, the inclined surface is provided with a plurality of first optical teeth arranged in an array.

[0010] Furthermore, the cross-section of the first optical tooth is constructed into a triangle.

[0011] Furthermore, the light-emitting surface of the light-guiding thick wall is provided with a plurality of arrayed second optical teeth.

[0012] Furthermore, it includes a bracket, which is disposed below the light guide strip and is used to support the light guide strip.

[0013] Furthermore, the homogenizing lens is made of a highly diffusive material.

[0014] Secondly, this utility model provides a vehicle light, comprising: The diffuse reflection optical system according to the first aspect; The housing contains the diffuse reflection optical system.

[0015] Thirdly, this utility model provides a vehicle including the headlights described in the second aspect.

[0016] Compared with the prior art, the technical solution of this application has the following beneficial technical effects: (1) This utility model effectively eliminates the direct characteristics of light through multi-level light guiding and disturbance mechanism, so that the light can be fully diffused during the propagation process and finally output a uniform diffuse reflection light spot without visible patterns or bright spots, thereby improving the uniformity of illumination and visual comfort.

[0017] (2) This utility model enhances the bending effect of the light angle through the inclined surface and the first optical tooth, making the conversion of light from vertical to horizontal more efficient, and the light forms diffuse reflection in the thick wall of the light guide. This reduces light loss and improves the uniformity and consistency of light distribution.

[0018] (3) The second optical tooth of this utility model can further homogenize the light, prevent the light from being concentrated and output, form a fine diffuse reflection pattern, and ensure that the final light spot has no visible pattern. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of a diffuse reflection optical system provided in an embodiment of the present invention; Figure 2 for Figure 1 Enlarged view of a section at point A in the middle; Figure 3 This is a cross-sectional view of a diffuse reflection optical system provided in an embodiment of this utility model.

[0021] Explanation of reference numerals in the attached figures: 1. Light source; 2. Light guide strip; 3. Light guide thick wall; 31. First surface; 32. Second surface; 33. Inclined surface; 331. First optical tooth; 34. Second optical tooth; 4. Uniform lens; 5. Bracket; 6. Shell. Detailed Implementation

[0022] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0024] It is understood that spatial relation terms such as "below," "under," "below," "below," "above," "over," etc., can be used here to describe the relationship between one element or feature shown in the figure and other elements or features. It should be understood that, in addition to the orientation shown in the figure, spatial relation terms also include different orientations of the device in use and operation. For example, if the device in the figure is flipped, the element or feature described as "below" or "under" or "below" of other elements or features will be oriented "over" of other elements or features. Therefore, the exemplary terms "below" and "under" can include both upper and lower orientations. Furthermore, the device may also include other orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptive terms used herein will be interpreted accordingly.

[0025] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” or “having,” etc., specify the presence of the stated feature, whole, step, operation, component, part, or combination thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.

[0026] Reference Figures 1 to 3As shown, this utility model provides a technical solution: a diffuse reflection optical system, including a light source 1, a light guide strip 2, a light guide thick wall 3, and a light-diffusing lens 4; the light source 1 is used to output light; the light guide strip 2 has its light-inlet surface facing the light-outlet surface of the light source 1, and the light guide strip 2 is used to change the propagation direction of the light; the light guide thick wall 3 has its light-inlet surface facing the light-outlet surface of the light guide strip 2, and the light guide thick wall 3 is used to conduct light and disrupt the propagation path of the light; the light-diffusing lens 4 is arranged opposite to the light-outlet surface of the light guide thick wall 3, and the light-diffusing lens 4 is used to disrupt the propagation path of the light.

[0027] For example, light source 1 can be an LED light panel, etc.

[0028] In this embodiment, light source 1 outputs light, which directly enters the light-incoming surface of light guide strip 2. Light guide strip 2 alters the propagation direction of the light through its internal optical patterns, dispersing the light both laterally and longitudinally. Subsequently, the light enters the light-incoming surface of light guide thick wall 3, which further conducts and disrupts the propagation path through its material and structure, increasing the number of reflections and refractions. Finally, uniform light lens 4, through its optical properties, ultimately disrupts the light path, achieving uniform output. The diffuse reflection optical system, through multi-stage light guiding and disruption mechanisms, effectively eliminates the direct characteristics of light, allowing the light to diffuse fully during propagation, ultimately outputting a uniform diffuse reflection light spot without visible patterns or bright spots, thus improving illumination uniformity and visual comfort.

[0029] Reference Figure 1 As shown, in some embodiments, the light guide thick wall 3 is configured in a figure-7 shape.

[0030] In this embodiment, the figure-7 shaped structure includes a vertical portion and a horizontal portion. After light enters the light guide wall 3 from the light guide strip 2, it first propagates along the vertical portion and then turns through the horizontal portion, increasing the propagation path length and reflection opportunities. This shape optimizes space utilization, effectively extends the light path, enhances the light disturbance effect, and thus improves diffuse reflection uniformity.

[0031] Reference Figure 2 As shown, in some embodiments, a slope 33 is formed at the junction of the first surface 31 and the second surface 32 of the light guide wall 3.

[0032] In this embodiment, the inclined plane 33 acts as a turning point for light rays, changing the incident angle of the light rays and deflecting them from the vertical direction to the horizontal direction, thus increasing the complexity of the path. The design of the inclined plane 33 further disrupts the propagation of light rays, reduces the possibility of direct light rays, and helps to form multiple diffuse reflections inside the thick wall, thereby improving the uniformity of light mixing.

[0033] Reference Figure 2 As shown, in some embodiments, the inclined surface 33 is provided with a plurality of arrayed first optical teeth 331.

[0034] For example, the array distribution can be a point array, etc.

[0035] In this embodiment, the first optical tooth 331, as a microstructure, changes the direction of light through refraction and reflection when light shines on the inclined surface 33. The array distribution ensures that the light is uniformly processed at multiple points. The first optical tooth 331 enhances the bending effect on the light angle, making the conversion of light from vertical to horizontal more efficient, and causing diffuse reflection of the light within the thick light guide wall 3. This reduces light loss and improves the uniformity and consistency of light distribution.

[0036] Reference Figure 2 As shown, in some embodiments, the cross-section of the first optical tooth 331 is configured as a triangle.

[0037] In this embodiment, the triangular cross-section has sharp edges, which can more effectively scatter and refract light, increasing the interaction between light and the tooth surface. This shape optimizes the light disturbance efficiency, allowing light to form a more complex diffuse reflection path within the thick wall, further eliminating local bright spots and ensuring a soft and uniform output light spot.

[0038] Reference Figure 2 As shown, in some embodiments, the light-emitting surface of the light-guiding thick wall 3 is provided with a plurality of arrayed second optical teeth 34.

[0039] For example, the cross-section of the second optical tooth 34 can be rectangular or the like.

[0040] In this embodiment, the second optical teeth 34 process the light again before it exits the thick wall, diffusing the light through a fine textured design. The second optical teeth 34 can further homogenize the light, prevent concentrated light output, form a fine diffuse reflection pattern, and ensure that the final light spot has no visible patterns.

[0041] Reference Figure 1 As shown, in some embodiments, the diffuse reflection optical system includes a bracket 5, which is disposed below the light guide strip 2 and is used to support the light guide strip 2.

[0042] In this embodiment, the bracket 5 provides mechanical support, fixing the position of the light guide strip 2 and ensuring that its light-incoming surface is aligned with the light source 1, preventing displacement from affecting the optical path. This enhances the structural stability of the light guide strip 2 and ensures the accuracy of light transmission.

[0043] Optionally, the homogenizing lens 4 is made of a highly diffusive material.

[0044] For example, highly dispersible materials can be special plastics or polymers, etc.

[0045] In this embodiment, the highly dispersive material has a high refractive index and scattering properties. After light enters the homogenizing lens 4, it undergoes multiple internal refractions, further disrupting the light path. The homogenizing lens 4 ultimately diffuses the light uniformly onto the visible surface, forming a non-directional diffuse reflection spot, which improves the softness and coverage of the illumination.

[0046] This utility model provides a technical solution: a vehicle light, comprising: Based on the above diffuse reflection optical system; The diffuse reflection optical system is located inside the housing 6.

[0047] This utility model provides a technical solution: a vehicle including the aforementioned vehicle lights.

[0048] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A diffuse reflection optical system, characterized in that, include: Light source (1), used to output light; A light guide strip (2) with its light-inlet surface facing the light-outlet surface of the light source (1) is used to change the propagation direction of the light. A light-guiding thick wall (3) is provided, with its light-inlet surface facing the light-outlet surface of the light guide strip (2). The light-guiding thick wall (3) is used to conduct the light and disrupt the propagation path of the light. A light-diffusing lens (4) is provided opposite to the light-emitting surface of the light-guiding thick wall (3). The light-diffusing lens (4) is used to disrupt the propagation path of the light.

2. The diffuse reflection optical system according to claim 1, characterized in that, The light-guiding thick wall (3) is constructed in the shape of a number 7.

3. The diffuse reflection optical system according to claim 2, characterized in that, A slope (33) is formed at the junction of the first surface (31) of the light guide thick wall (3) and the second surface (32) of the light guide thick wall (3).

4. The diffuse reflection optical system according to claim 3, characterized in that, The inclined surface (33) is provided with a plurality of arrayed first optical teeth (331).

5. The diffuse reflection optical system according to claim 4, characterized in that, The cross section of the first optical tooth (331) is constructed as a triangle.

6. The diffuse reflection optical system according to claim 5, characterized in that, The light-guiding thick wall (3) has multiple arrayed second optical teeth (34) on its light-emitting surface.

7. The diffuse reflection optical system according to claim 2, characterized in that, Includes a bracket (5), which is located below the light guide strip (2) and is used to support the light guide strip (2).

8. The diffuse reflection optical system according to claim 1, characterized in that, The homogenizing lens (4) is made of a highly dispersive material.

9. A vehicle light, characterized in that, include: The diffuse reflection optical system according to any one of claims 1 to 8; The housing (6) contains the diffuse reflection optical system.

10. A vehicle, characterized in that, Including the vehicle lights according to claim 9.

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