Light guide membrane and light-emitting assembly

Abstract

The light guide diaphragm comprises a main body and a Fresnel convex lens, the main body is provided with a light inlet surface, a first light outlet surface and a reflecting surface, and the first light outlet surface is provided with a mounting area; the Fresnel convex lens is provided with a second light-emitting surface, the Fresnel convex lens is arranged in the installation area, and the second light-emitting surface and the first light-emitting surface are arranged in the same direction. According to the utility model, the reflection efficiency of light rays is improved through the reflection surface, so that more light rays can enter the Fresnel convex lens, and the brightness of light emitting points is improved. The light can be efficiently emitted through the collimation and beam shrinkage function of the Fresnel lens and is uniformly distributed on the surface of the ornament, so that the light on the surface of the whole ornament is more uniformly and naturally distributed.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, specifically to a light guide film and a light-emitting component. Background Technology

[0002] In automotive interior design, to achieve luminous design, a combination of a light source and a light guide film is usually used. When the light source emits light through the light guide film, the emitting surface of the light guide film reflects the light, and the light is emitted from the light-emitting surface of the light guide film and exits the surface of the decorative part.

[0003] However, the spatial distribution of the light-emitting points on the reflective surface varies, resulting in different geometric angles of the reflected light and creating a divergence angle distribution, which in turn causes light diffusion. This leads to insufficient brightness at the light-emitting points of the light guide film, affecting the overall visual effect and user experience. Utility Model Content

[0004] Based on the above description, this utility model provides a light guide film and a light-emitting component, aiming to solve the problem of insufficient brightness at the light emission point of existing light guide films.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0006] In a first aspect, a light guide film includes:

[0007] The main body has a light-incident surface, a first light-exiting surface, and a reflective surface, and an installation area is formed on the first light-exiting surface;

[0008] A Fresnel convex lens having a second light-emitting surface is disposed within the mounting area and arranged such that the second light-emitting surface and the first light-emitting surface face the same direction.

[0009] Based on the above technical solution, the present invention can be further improved as follows.

[0010] Furthermore, the material of the reflective surface is aluminum or silver.

[0011] Furthermore, the Fresnel lens is made of plastic.

[0012] Furthermore, the Fresnel lens is formed at a designated position using a pressing process.

[0013] Secondly, a light-emitting component includes:

[0014] The light guide film as described in the first aspect;

[0015] A light source, wherein the light-emitting end of the light source faces the light-incident surface.

[0016] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0017] (1) This utility model improves the utilization efficiency of light by using a reflective surface, allowing more light to enter the Fresnel convex lens, thereby increasing the brightness of the light-emitting point. The collimation and beam-contraction function of the Fresnel lens enables the light to be emitted efficiently and evenly distributed on the decorative part, making the light distribution of the entire decorative part more uniform and natural.

[0018] (2) The present invention can not only improve the reflectivity of the reflective surface by using aluminum or silver, but also ensure that the reflected light is relatively uniform.

[0019] (3) This utility model can ensure the good optical performance of Fresnel convex lens by using plastic or glass, and ensure high light transmittance. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a light guide film provided in an embodiment of the present utility model from one perspective;

[0021] Figure 2 This is a structural schematic diagram of a light guide film provided in an embodiment of the present invention from another perspective;

[0022] Figure 3 This is a schematic diagram of the structure of a light-emitting component provided in an embodiment of the present utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 10. Main body; 11. Incident surface; 12. First exiting surface; 13. Reflecting surface;

[0025] 20. Fresnel lens;

[0026] 30. Light source. Detailed Implementation

[0027] 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.

[0028] 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.

[0029] It is understood that spatial relation terms such as "below," "under," "below," "below," "above," "above," 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 "below" of the other element or feature will be oriented "above" the other element or feature. Therefore, the exemplary terms "below" and "below" 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.

[0030] 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.

[0031] Reference Figures 1-2 As shown, this utility model provides a technical solution: a light guide film, including a main body 10 and a Fresnel lens 20. The main body 10 has a light-incident surface 11, a first light-emitting surface 12 and a reflective surface 13. An installation area is formed on the first light-emitting surface 12. The Fresnel lens 20 has a second light-emitting surface. The Fresnel lens 20 is disposed within the installation area and arranged in such a way that the second light-emitting surface and the first light-emitting surface 12 face the same direction.

[0032] In this embodiment, when the light source 30 emits light towards the reflecting surface 13, the reflecting surface 13 reflects the light to the Fresnel lens 20. After the Fresnel lens 20 collimates and locks the light beam, it exits sequentially from the second light-emitting surface and the first light-emitting surface 12. This improves the light reflection efficiency through the reflecting surface 13, allowing more light to enter the Fresnel lens 20, thereby increasing the brightness of the light-emitting point. The collimation and beam-sniffing function of the Fresnel lens enables the light to exit efficiently and be evenly distributed on the starry sky dome, resulting in a more uniform and natural light distribution across the entire starry sky dome.

[0033] Reference Figures 1-2 As shown, in some embodiments, the material of the reflective surface 13 is aluminum or silver.

[0034] In this embodiment, using aluminum or silver can not only improve the reflectivity of the reflective surface 13, but also ensure that the reflected light is more uniform.

[0035] Reference Figures 1-2 As shown, in some embodiments, the Fresnel lens 20 is made of plastic or glass.

[0036] In this embodiment, the Fresnel lens 20 can be made of plastic or glass to ensure good optical performance and high light transmittance.

[0037] In some embodiments, the Fresnel lens 20 is pressed into the mounting area using a press-fitting process.

[0038] In this embodiment, since there is vibration when the vehicle is in motion, the Fresnel lens 20 is installed more securely through a press-fitting process to prevent the Fresnel lens 20 from loosening and detaching from the mounting area.

[0039] Reference Figure 3 As shown, this utility model provides a technical solution: a light-emitting component, comprising:

[0040] Based on the aforementioned light guide film;

[0041] Light source 30, with its light-emitting end facing the incident light surface 11.

[0042] For example, the light source 30 can be an LED light, etc.

[0043] 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 light guide film, characterized in that, include: The main body (10) has a light-incident surface (11), a first light-emitting surface (12) and a reflective surface (13), and an installation area is provided on the first light-emitting surface (12); A Fresnel lens (20) has a second light-emitting surface. The Fresnel lens (20) is located within the mounting area and is arranged such that the second light-emitting surface and the first light-emitting surface (12) are facing the same direction.

2. The light guide film according to claim 1, characterized in that, The material of the reflective surface (13) is aluminum or silver.

3. The light guide film according to claim 1, characterized in that, The Fresnel lens (20) is made of plastic or glass.

4. The light guide film according to claim 3, characterized in that, The Fresnel lens (20) is pressed into the mounting area by a press-fitting process.

5. A light-emitting component, characterized in that, include: The light guide film according to any one of claims 1 to 4; The light source (30) has its light-emitting end facing the light-incident surface (11).

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