Wide-angle ultraviolet glass optical fiber structure

Abstract

The utility model discloses a wide-angle ultraviolet glass optical fiber structure which comprises an optical fiber bundle, and a diffusion lens capable of increasing the ultraviolet light emission angle is printed on the light-emitting end face of the optical fiber bundle in a 3D mode. The optical fiber laser is reasonable in structural design, the diffusion lens is directly printed on the light emitting end face of the optical fiber bundle in a 3D mode through the 3D technology, the emission angle of ultraviolet light is effectively increased through the diffusion lens, and therefore the lighting effect of the optical fiber is improved. Compared with the traditional scheme, the design reduces the dependence on an external optical lens, reduces the cost, reduces additional assembly steps and assembly structures, avoids increasing the outer diameter and occupied space of the optical fiber, keeps the compact design and use convenience of the endoscope, and is beneficial to wide popularization and application.

Description

Technical Field

[0001] This utility model relates to the field of optical fiber technology, and in particular to a large-angle ultraviolet glass optical fiber structure. Background Technology

[0002] Although current quartz optical fibers can transmit ultraviolet light, their NA is only 0.22, resulting in a small light output angle, making them unsuitable for endoscopic illumination.

[0003] Sumita Optical's specialized ultraviolet glass fiber, model ST365-35, boasts a high numerical aperture (NA) of 0.32. Compared to traditional silica fiber (NA typically around 0.22), this fiber can more effectively collect and transmit light, improving endoscope illumination to some extent. However, it still doesn't fully meet the requirements of endoscope illumination. Further enhancement typically involves adding optical lenses, which is not only costly but also increases the fiber's outer diameter and space requirements, impacting the endoscope's overall design and ease of use. Therefore, how to further improve illumination performance while maintaining the fiber's small diameter remains a pressing technical challenge. Utility Model Content

[0004] To address the aforementioned shortcomings, the purpose of this invention is to provide a large-angle ultraviolet glass fiber structure with a reasonable structural design and good diffused illumination effect.

[0005] The technical solution adopted by this utility model to achieve the above objectives is as follows:

[0006] A large-angle ultraviolet glass fiber structure includes an optical fiber bundle, wherein the light-emitting end face of the optical fiber bundle is 3D printed with a diffusion lens that can increase the ultraviolet light emission angle.

[0007] In a preferred embodiment of this invention, the diffusion lens is a concave lens structure. This structure is simple, and the concave lens effectively diffuses light outward, increasing the emission angle of ultraviolet light and improving the illumination effect. Furthermore, the curvature and shape of the concave lens structure can be adjusted according to specific needs to achieve optimal diffusion effect and illumination performance.

[0008] In a preferred embodiment of this invention, the central axis of the diffusion lens is coaxially aligned with the axis of the light-emitting end face of the optical fiber bundle. This results in more precise light propagation, optimizes the light emission effect, ensures light uniformity and efficient beam diffusion, and improves lighting quality.

[0009] In a preferred embodiment of this invention, a metal tube is further included, which is sleeved on the light-emitting end of the optical fiber bundle. The metal tube provides protection to the light-emitting end of the optical fiber bundle, preventing it from scattering, and also helps to fix the diffusion lens, ensuring its stability, extending its service life, and enhancing its durability and reliability.

[0010] In a preferred embodiment of this invention, the outer diameter of the metal tube is consistent with the outer diameter of the diffusion lens. This ensures the compactness of the overall structure and reduces the outer diameter of the endoscope and the space it occupies.

[0011] The beneficial effects of this invention are as follows: The invention features a rational structural design, directly utilizing 3D technology to 3D print a diffusion lens on the light-emitting end face of the optical fiber bundle. This diffusion lens effectively increases the emission angle of ultraviolet light, thereby improving the illumination effect of the optical fiber. Compared to traditional solutions, this design reduces reliance on external optical lenses, lowers costs, reduces additional assembly steps and structures, and avoids increasing the outer diameter of the optical fiber and occupying space. It maintains the compact design and ease of use of the endoscope, facilitating its widespread application.

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0014] Example: See Figure 1 This invention provides a large-angle ultraviolet glass fiber structure, comprising an fiber bundle 1 and a metal tube 2. The light-emitting end face of the fiber bundle 1 is 3D-printed with a diffusion lens 3 that increases the ultraviolet light emission angle. In this embodiment, the diffusion lens 3 is preferably a concave lens structure. This structure is simple, and the concave lens structure can effectively diffuse light outward, increasing the ultraviolet light emission angle and improving the illumination effect. Furthermore, the curvature and shape of the concave lens structure can be adjusted according to specific needs to achieve optimal diffusion effect and illumination performance. In other embodiments, the diffusion lens 3 can also adopt other structures, as long as they can increase the ultraviolet light emission angle.

[0015] The central axis of the diffuser lens 3 is preferably coaxial with the axis of the light-emitting end face of the optical fiber bundle 1. This makes the light propagation more precise, optimizes the light emission effect, ensures the uniformity of light and the efficient diffusion of the beam, and improves the lighting quality.

[0016] The metal tube 2 is fitted onto the light-emitting end of the optical fiber bundle 1. The metal tube 2 provides protection to the light-emitting end of the optical fiber bundle 1, preventing it from scattering, and also helps to fix the diffusion lens 3, ensuring its stability, extending its service life, and enhancing its durability and reliability. Preferably, the outer diameter of the metal tube 2 matches the outer diameter of the diffusion lens 3. This ensures the compactness of the overall structure, reducing the outer diameter of the endoscope and the space it occupies.

[0017] During production, the diffusion lens 3 is directly 3D printed on the light-emitting end face of the fiber bundle 1 using 3D technology. For usage, please refer to... Figure 1 , Figure 1 The arrow in the image represents ultraviolet light. The diffusion lens 3 can effectively increase the emission angle of ultraviolet light, thereby improving the illumination effect of the optical fiber.

[0018] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model. Other structures that are the same as or similar to these terms are all within the protection scope of this utility model.

Claims

1. A large-angle ultraviolet glass fiber structure, comprising a fiber bundle, characterized in that: The light-emitting end face of the optical fiber bundle is 3D printed with a diffusion lens that can increase the ultraviolet light emission angle, and the central axis of the diffusion lens is coaxial with the axis of the light-emitting end face of the optical fiber bundle.

2. The large-angle ultraviolet glass fiber structure according to claim 1, characterized in that, The diffusion lens has a concave lens structure.

3. The large-angle ultraviolet glass fiber structure according to any one of claims 1-2, characterized in that, It also includes a metal tube, which is sleeved at the light-emitting end of the optical fiber bundle.

4. The large-angle ultraviolet glass fiber structure according to claim 3, characterized in that, The outer diameter of the metal tube is the same as the outer diameter of the diffusion lens.

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