Long-life light-equalizing flexible lens optical fiber

Abstract

The utility model discloses a long-life light-equalizing flexible lens optical fiber, which comprises an optical fiber bundle, a metal tube and a hexagonal light-equalizing rod, the light-in end face of the optical fiber bundle is bonded with the light-out end face of the hexagonal light-equalizing rod through UV (ultraviolet) glue, and the metal tube is sleeved at the joint of the hexagonal light-equalizing rod and the optical fiber bundle. According to the utility model, the structural design is reasonable, the hexagonal light equalizing rod is ingeniously arranged, the internal total emission principle is utilized, light is reflected and homogenized for multiple times in the hexagonal light equalizing rod, non-uniform light source incident light is changed into uniform light to be directly input into an optical fiber, and the light equalizing effect is good; the light spot of the light source is located at the front section position of the hexagonal light equalizing rod, so that the bonding position and the optical fiber bundle are prevented from forming a high-temperature position, and the service life of the optical fiber is prolonged; in addition, a metal tube is sleeved at the joint of the optical fiber bundle and the hexagonal light equalizing rod, so that the resistance of the whole structure to external interference is improved, the stability and durability of the structure are enhanced, and the service life is further prolonged.

Description

Technical Field

[0001] This utility model relates to the field of optical fiber technology, and in particular to a long-life homogenizing soft mirror optical fiber. Background Technology

[0002] In the field of optical transmission, beam guides, as a key component, are widely used in various applications such as medical endoscopes, scientific instruments, and industrial inspection to transmit light for illumination or observation. However, traditional beam guides, especially those using conventional adhesive structures, have some drawbacks in practical applications. For example, they lack a light-uniforming structure, resulting in an uneven light spot. Furthermore, the adhesive material is prone to aging, cracking, or detachment under long-term exposure to light, temperature changes, or mechanical stress, leading to adhesive failure and consequently affecting the beam guide's transmission performance and stability, resulting in a shorter lifespan. Utility Model Content

[0003] To address the aforementioned problems, the purpose of this invention is to provide a long-life homogenizing flexible optical fiber with a reasonable structural design, good light homogenization effect, and long service life.

[0004] The technical solution adopted by this utility model to achieve the above objectives is as follows:

[0005] A long-life homogenizing flexible optical fiber includes an optical fiber bundle, a metal tube, and a hexagonal homogenizing rod. The light-incident end face of the optical fiber bundle is bonded to the light-outcident end face of the hexagonal homogenizing rod with UV adhesive. The metal tube is sleeved at the connection between the hexagonal homogenizing rod and the optical fiber bundle.

[0006] As a preferred embodiment of this utility model, the cross-sectional outline of the hexagonal light-diffusing rod is a regular hexagon. The regular hexagonal cross-section design helps the light to be distributed more evenly inside the light-diffusing rod, thereby further improving the uniformity of the light spot.

[0007] In a preferred embodiment of this invention, the central axis of the hexagonal light-distributing rod is coaxial with the central axis of the fiber bundle. This ensures efficient light transmission from the hexagonal light-distributing rod to the fiber bundle and reduces light loss.

[0008] In a preferred embodiment of this invention, a sleeve is further included, which is fitted over the light-inlet end of the optical fiber bundle. The sleeve provides additional protection to the light-inlet end of the optical fiber bundle, preventing it from disintegrating.

[0009] As a preferred embodiment of this utility model, the metal tube is sleeved on the sleeve, providing double protection for the connection between the optical fiber bundle and the hexagonal light-distributing rod.

[0010] The beneficial effects of this utility model are as follows: The utility model has a reasonable structural design, cleverly incorporating a hexagonal light-averaging rod. Utilizing the principle of total emission, light undergoes multiple reflections within the hexagonal light-averaging rod, resulting in uniform light from an uneven light source being directly input into the optical fiber, thus achieving excellent light equalization. Furthermore, the light spot of the light source is located at the front of the hexagonal light-averaging rod, preventing high temperatures at the bonding points and fiber bundle, thereby increasing the lifespan of the optical fiber. Additionally, a metal tube is fitted at the connection between the fiber bundle and the hexagonal light-averaging rod, improving the overall structure's resistance to external interference, enhancing its stability and durability, and further extending its service life.

[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is an exploded structural diagram of the present invention.

[0014] Figure 3 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0015] Example: See Figures 1-3 This utility model provides a long-life, homogenizing flexible optical fiber, which includes an optical fiber bundle 1, a metal tube 2, a hexagonal homogenizing rod 3, and a sleeve 4. The cross-sectional shape of the hexagonal homogenizing rod 3 is preferably a regular hexagon. The regular hexagonal cross-section design helps the light to be distributed more evenly inside the homogenizing rod, thereby further improving the uniformity of the light spot.

[0016] The light-incident end face of the optical fiber bundle 1 is bonded to the light-exit end face of the hexagonal light-distributing rod 3 using UV adhesive 5. Preferably, the central axis of the hexagonal light-distributing rod 3 and the central axis of the optical fiber bundle 1 are coaxial. This ensures efficient light transmission from the hexagonal light-distributing rod 3 to the optical fiber bundle 1 and reduces light loss.

[0017] The sleeve 4 is fitted onto the light-inlet end of the optical fiber bundle 1. The sleeve 4 provides additional protection for the light-inlet end of the optical fiber bundle 1, preventing it from coming apart.

[0018] The metal tube 2 is fitted over the connection between the hexagonal light-distributing rod 3 and the optical fiber bundle 1, and covers the sleeve 4. This provides double protection for the connection between the optical fiber bundle 1 and the hexagonal light-distributing rod 3, improves the overall structure's resistance to external interference (such as temperature changes and mechanical stress), further enhances the structure's stability and durability, and thus extends its service life.

[0019] When using, please refer to Figure 2Because of the hexagonal light-averaging rod 3, the light emitted by the LED light source 6 is homogenized by multiple reflections within the hexagonal light-averaging rod 3 before being input into the fiber bundle 1, resulting in good light-averaging effect. At the same time, since the light from the LED light source 6 is homogenized by the hexagonal light-averaging rod 3 before entering the fiber bundle 1, the light spot of the LED light source is located at the front end of the hexagonal light-averaging rod 3, which avoids high-temperature areas at the bonding points and the fiber bundle 1, resulting in a long service life.

[0020] 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 optical fiber structures that are the same as or similar to these structures are all within the protection scope of this utility model.

Claims

1. A long-life homogenizing flexible mirror fiber, comprising a fiber bundle, characterized in that: It also includes a metal tube and a hexagonal light-distributing rod. The light-incident end face of the optical fiber bundle is bonded to the light-outcident end face of the hexagonal light-distributing rod with UV adhesive. The metal tube is sleeved at the connection between the hexagonal light-distributing rod and the optical fiber bundle.

2. The long-lifetime homogenizing flexible mirror fiber according to claim 1, characterized in that, The cross-sectional shape of the hexagonal light-distributing rod is a regular hexagon.

3. The long-lifetime homogenizing flexible mirror fiber according to claim 1, characterized in that, The central axis of the hexagonal light-distributing rod is coaxial with the central axis of the optical fiber bundle.

4. The long-lifetime homogenizing flexible mirror fiber according to any one of claims 1-3, characterized in that, It also includes a sleeve, which is fitted onto the light-inlet end of the optical fiber bundle.

5. The long-lifetime homogenizing flexible mirror fiber according to claim 4, characterized in that, The metal tube is fitted onto the sleeve.

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