Optical fiber light guide structure

Abstract

The utility model relates to a light guiding fiber technology field, concretely relates to a kind of optical fiber light guiding structure, adopt optical fiber body, and the optical fiber body includes light inlet part, and the light guide of light inlet part, the top surface of light guide is arc-shaped and is arranged, the bottom surface of light guide is plane, the bottom surface of light guide is light exit surface, the top surface of light guide is equipped with gradually changing type mesh tooth structure, and gradually changing type mesh tooth structure's mesh tooth density gradually increases along the direction of away from light inlet part.Using the V-shaped angle of each mesh tooth of gradually changing type mesh tooth structure, light is reflected by the slope of V-shaped angle to form light collecting effect, and the mesh tooth density of gradually changing type mesh tooth structure gradually increases along the direction of away from light inlet part, so that the whole optical fiber body can more evenly emit light, compared with the whole brightness of the optical fiber body of the prior art light guiding mesh point, the whole brightness of the optical fiber body after the slope reflection of V-shaped angle light collecting of the application is significantly improved, and light efficiency utilization can be more improved.

Description

Technical Field

[0001] This utility model relates to the field of optical fiber technology, specifically to an optical fiber guiding structure. Background Technology

[0002] Typically, the transmitting device at one end of an optical fiber uses a light-emitting diode (LED) or a laser beam to transmit light pulses to the optical fiber. The fiber is then bent to emit light for a decorative effect. However, existing optical fiber light guiding and luminescence effects are poor, often resulting in extremely bright light at the light-inlet end of the fiber, while the brightness of the light decreases significantly along the direction away from the light-inlet end, leading to low light efficiency.

[0003] To address the aforementioned issues, existing technologies, such as the one disclosed in application number CN202410190581.3, include an injection-molded optical fiber structure and its fabrication method. This structure utilizes a smooth transition at the corner between the top and bottom surfaces of the light guide section to form a multi-ray reflection loop, resulting in higher light reflection efficiency. Furthermore, the use of light-guiding dots on the bottom surface of the light guide section enhances light utilization. However, while this injection-molded optical fiber structure enables uniform light emission from the light guide section, the light reflection efficiency remains insufficient, and the overall brightness and luminous efficiency of the optical fiber still need improvement. Summary of the Invention

[0004] In order to overcome the shortcomings and deficiencies of the existing technology, the purpose of this utility model is to provide an optical fiber guiding structure.

[0005] The objective of this utility model is achieved through the following technical solution: an optical fiber light guide structure, comprising an optical fiber body, the optical fiber body including a light-inlet section and a light guide section that is in optical communication with the light-inlet section, the top surface of the light guide section being arc-shaped, the bottom surface of the light guide section being planar, the bottom surface of the light guide section being a light-outlet surface, and the top surface of the light guide section being provided with a gradient mesh structure, the mesh density of the gradient mesh structure gradually increasing in the direction away from the light-inlet section.

[0006] Preferably, the depth of the teeth in the gradient mesh structure gradually increases in the direction away from the light-gathering part.

[0007] Preferably, the opening angle of the teeth in the gradient mesh structure gradually increases in the direction away from the light-gathering part.

[0008] Preferably, the light-incoming end face of the light-incoming part is circular.

[0009] Preferably, the optical fiber body further includes an optical transition section, wherein the light-inlet section, the optical transition section and the light-guide section are connected in sequence and conduct light, the top surface of the optical transition section is arc-shaped, and the bottom surface of the optical transition section gradually slopes from the light-inlet section to the light-guide section to form a planar structure.

[0010] Preferably, the corner between the top surface and the bottom surface of the light guide is rounded.

[0011] The beneficial effects of this utility model are as follows: The optical fiber light guide structure of this utility model adopts an optical fiber body, which includes a light-inlet section and a light-guide section that communicates with the light-inlet section. The top surface of the light-guide section is arc-shaped, and the bottom surface of the light-guide section is flat. The bottom surface of the light-guide section is the light-emitting surface. The top surface of the light-guide section has a gradient mesh structure, and the mesh density of the gradient mesh structure gradually increases in the direction away from the light-inlet section. Utilizing the V-angle of each mesh of the gradient mesh structure, light is reflected by the slope of the V-angle to form a focusing effect. Furthermore, the mesh density of the gradient mesh structure gradually increases in the direction away from the light-inlet section, thereby enabling the entire optical fiber body to emit light more uniformly. Compared with the overall brightness of the optical fiber body with existing light guide meshes, the overall brightness of the optical fiber body after focusing light through the slope reflection of the V-angle in this application is significantly improved, thus further enhancing the light efficiency. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a structural schematic diagram from another perspective of the present invention; Figure 3 This is a partial cross-sectional schematic diagram of the present invention; Figure 4 This is a partial structural schematic diagram of the present invention; Figure 5 yes Figure 4 An enlarged diagram of A in the diagram.

[0013] The attached figures are labeled as follows: 1, light-entry section; 2, light transition section; 3, light guide section; 4, gradient mesh structure; H, mesh depth; α, mesh opening angle. Detailed Implementation

[0014] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention.

[0015] Example 1 like Figure 1-5 As shown, an optical fiber light guide structure includes an optical fiber body, which includes a light-inlet section 1 and a light guide section 3 that is in optical communication with the light-inlet section 1. The top surface of the light guide section 3 is arc-shaped, and the bottom surface of the light guide section 3 is flat and serves as the light-emitting surface. The top surface of the light guide section 3 is provided with a gradient mesh structure 4, and the mesh density of the gradient mesh structure 4 gradually increases in the direction away from the light-inlet section 1.

[0016] This optical fiber light guide structure utilizes the V-shaped angle of each tooth in the gradient mesh structure 4. Light is reflected by the slope of the V-shaped angle to form a focusing effect. Furthermore, the density of the teeth in the gradient mesh structure 4 gradually increases in the direction away from the light-inlet part 1, thereby enabling the entire optical fiber to emit light more uniformly towards the light-outlet surface. Compared with the overall brightness of the optical fiber body after the slope reflection and focusing of the V-shaped angle in this application, the overall brightness of the optical fiber body is significantly improved, which can further improve the light efficiency utilization rate.

[0017] Furthermore, the depth H of the teeth in the gradient mesh structure 4 gradually increases in the direction away from the light-inlet section 1, so that the slope reflection area of ​​the V-shaped angle of each tooth gradually increases in the direction away from the light-inlet section 1, resulting in better light focusing effect, higher overall brightness, and the entire optical fiber body can emit light more uniformly towards the light-emitting surface.

[0018] Furthermore, the opening angle α of the teeth in the gradient mesh structure 4 gradually increases in the direction away from the light-inlet part 1, which further increases the slope reflection area of ​​the V-shaped angle of each tooth in the direction away from the light-inlet part 1, resulting in better light focusing effect, higher overall brightness, and the entire optical fiber body can emit light more uniformly towards the light-emitting surface.

[0019] Furthermore, the light-inlet end face of the light-inlet section 1 is circular, which is beneficial for the light-inlet end face of the light-inlet section 1 to receive more light sources and transmit them to the light source body, thereby reducing light loss, improving brightness, and avoiding increased energy consumption.

[0020] Furthermore, the optical fiber body also includes an optical transition section 2. The light-inlet section 1, the optical transition section 2, and the light guide section 3 are sequentially connected and conduct light. The top surface of the optical transition section 2 is arc-shaped, and the bottom surface of the optical transition section 2 gradually slopes from the light-inlet section 1 to the light guide section 3, transitioning to a planar structure. Light enters the optical fiber body through the light-inlet section 1, and is uniformly transmitted to the light guide section 3 through the optical transition section 2, ensuring that the light can be uniformly transmitted to the light guide section 3 and improving the light efficiency.

[0021] Furthermore, the corner between the top surface and the bottom surface of the light guide 3 is smoothly transitioned, and the light is reflected back and forth to form a multi-light reflection circuit, which makes the light reflection efficiency higher, and the brightness and uniformity will be greatly improved, which is conducive to improving the light efficiency utilization rate.

[0022] Comparative Example 1 An optical fiber body, taken from the optical fiber body of Example 1 of Application No. CN202410190581.3, "An Injection Molded Optical Fiber Structure and Its Fabrication Method".

[0023] Performance testing: Taking the optical fiber body from Example 1, with the side of the optical fiber body having a gradient mesh structure as the bottom surface and the other side as the top surface for light emission, a CCD brightness meter was used to test the brightness. The test results showed that its maximum brightness was 2847 cd / m². 2 The minimum brightness is 2745 cd / m². 2 The average brightness is 2802 cd / m². 2 ; Taking the optical fiber body of Comparative Example 1, with the side of the optical fiber body containing the light-guiding dots as the bottom surface and the other side as the top surface for light emission, a CCD brightness meter was used to test the brightness. The test results showed that its maximum brightness was 993 cd / m². 2 The minimum brightness is 969 cd / m². 2 The average brightness is 982 cd / m². 2 ; As can be seen from the above test results, compared with the optical fiber body of Comparative Example 1, the average brightness of the optical fiber body of Example 1 is increased by about 285%, indicating that compared with the overall brightness of the optical fiber body of the existing light guide network, the overall brightness of the optical fiber body after the V-shaped angle slope reflection and focusing is significantly improved.

[0024] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this utility model are within the protection scope of this utility model.

Claims

1. An optical fiber light guide structure, comprising an optical fiber body, the optical fiber body including a light-inlet section and a light-guide section communicating with the light-inlet section, the top surface of the light-guide section being arc-shaped and the bottom surface of the light-guide section being planar, characterized in that: The bottom surface of the light guide is the light emitting surface, and the top surface of the light guide is provided with a gradient mesh structure. The mesh density of the gradient mesh structure gradually increases in the direction away from the light receiving part.

2. The optical fiber guiding structure according to claim 1, characterized in that: The depth of the mesh teeth in the gradient mesh structure gradually increases in the direction away from the light-gathering part.

3. The optical fiber guiding structure according to claim 1, characterized in that: The opening angle of the teeth in the gradient mesh structure gradually increases in the direction away from the light-gathering part.

4. The optical fiber guiding structure according to claim 1, characterized in that: The light-inlet end face of the light-inlet section is circular.

5. The optical fiber guiding structure according to claim 1, characterized in that: The optical fiber body also includes an optical transition section. The light-inlet section, the optical transition section and the light-guide section are connected in sequence and conduct light. The top surface of the optical transition section is arc-shaped, and the bottom surface of the optical transition section gradually slopes from the light-inlet section to the light-guide section to form a planar structure.

6. The optical fiber guiding structure according to claim 1, characterized in that: The corner between the top and bottom surfaces of the light guide is smoothly transitioned.

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