Optical fiber beam expanding connector

Abstract

The invention discloses an optical fiber beam expanding connector which comprises a male head structure and a female head structure, and the male head structure and the female head structure are fixed in an inserted mode. A first collimator and a first glass window embedded in the male head structure are arranged in the male head structure, the first glass window is opposite to the first collimator, and the first glass window seals the first collimator in the male head structure; a second collimator and a second glass window are correspondingly arranged in the female head structure, and when the male head structure and the female head structure are connected, the optical axis of the first collimator is aligned with the optical axis of the second collimator. According to the scheme, the beam expanding connector is provided with the glass window I and the glass window II, so that the collimator I and the collimator II are protected, and the beam expanding connector is convenient to clean. The male head structure and the female head structure are fixed in an inserted mode, and rapid insertion and extraction butt joint can be achieved. The fully-closed structure can effectively isolate dust particles and water vapor energy substances in the external environment, and the structure is more stable.

Description

Technical Field

[0001] The present invention relates to the field of connectors, and more particularly to an optical fiber beam expansion connector. Background Art

[0002] The disadvantages of traditional contact-type single-core or multi-core connectors are that the end faces are easily scratched and the number of plug-in and unplug times is limited. Connectors that are frequently plugged and unplugged need to be constantly polished.

[0003] Contactless connectors have the characteristics of less prone to wear on the end face, stronger surface stain resistance and longer service life. However, traditional contactless connectors, whether they are expanded beam fiber optic connectors or MPO connectors, have end faces that are prone to dirt and grime. Once the greasy components contaminate the connector end face, it is difficult to clean. Summary of the invention

[0004] The object of the present invention is to provide a fiber optic expansion connector to solve the technical problems existing in the above-mentioned background technology.

[0005] The technical solution of the present invention provides a fiber beam expansion connector, comprising a male structure and a female structure, wherein the male structure is plugged and fixed with the female structure;

[0006] The male head structure is provided with a collimator 1 and a glass window 1 embedded in the male head structure, the glass window 1 is opposite to the collimator 1, and the glass window 1 seals the collimator 1 inside the male head structure;

[0007] A second collimator and a second glass window are correspondingly arranged in the female head structure. When the male head structure and the female head structure are connected, the optical axes of the first collimator and the second collimator are aligned.

[0008] In a preferred embodiment, a plurality of positioning pins are arranged on the male structure in a circumferential direction, and a plurality of positioning holes are arranged on the female structure, and the positioning holes correspond to the positioning pins one by one.

[0009] In a preferred embodiment, when the male structure and the female structure are plugged and fixed, the glass window 1 and the glass window 2 are close to each other.

[0010] In a preferred embodiment, the male head structure includes a male head shell and a male head seat sealed to the male head shell, and the collimator 1 is mounted on the male head seat.

[0011] In a preferred embodiment, the male head seat is provided with a plurality of mounting holes 1, each of the mounting holes 1 is provided with a ceramic sleeve 1, and the collimator 1 is installed in the ceramic sleeve 1.

[0012] In a preferred embodiment, the male head structure includes a female head shell and a female head seat sealed to the female head shell, and the second collimator is mounted on the female head seat.

[0013] In a preferred embodiment, the female head seat is provided with a plurality of mounting holes 2, each of the mounting holes 2 is provided with a ceramic sleeve 2, and the collimator 2 is installed in the ceramic sleeve 2.

[0014] The beneficial effects of the technical solution of the present invention are:

[0015] The expanded beam connector of this solution is provided with glass window 1 and glass window 2, which can protect collimator 1 and collimator 2 and facilitate cleaning. The male and female structures are plugged and fixed, which can realize quick plug-in and plug-out docking, and can be applied to ship shore power and medical endoscopes. The fully enclosed structure can effectively isolate dust particles, water vapor and energy substances in the external environment, and the structure is more stable. Collimator 1 and collimator 2 use ceramic sleeves as mounting seats, which are more stable in structure, have higher precision, and achieve lower insertion loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 This is a schematic diagram of the male connector structure of the present invention.

[0018] Figure 3 It is a schematic diagram of the female connector structure of the present invention.

[0019] Explanation of the accompanying drawings: 1 male structure, 11 male shell, 12 male seat, 13 mounting hole one, 14 ceramic sleeve one, 15 collimator one, 16 glass window one, 17 positioning pin, 2 female structure, 21 female shell, 22 female seat, 23 mounting hole two, 24 ceramic sleeve two, 25 collimator two, 26 glass window two, 27 positioning hole, 3 optical fiber cable, 4 FC / PC connector. DETAILED DESCRIPTION

[0020] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the sake of illustration and convenience of description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0021] like Figure 1-3As shown, the technical solution of the present invention provides a fiber optic expansion connector, including a male structure 1 and a female structure 2, the male structure 1 is plugged and fixed with the female structure 2, the optical fiber cable 3 is arranged at the tail of the male structure 1 and the female structure 2, and the FC / PC connector 4 is arranged at the tail of the optical fiber cable 3.

[0022] The male structure 1 is provided with a plurality of positioning pins 17 in a circumferential direction, and the female structure 2 is provided with a plurality of positioning holes 27, and the positioning holes 27 correspond to the positioning pins 17 one by one. When the male structure 1 and the female structure 2 are docked, the optical fiber cable at the tail of the male structure 1 and the optical fiber cable at the tail of the female structure 2 can be coaxial by simply inserting the positioning pins 17 into the positioning holes 27. The fixing form of the positioning pins 17 and the positioning holes 27 is convenient for plugging and unplugging, and it is convenient to clean the end faces of the male structure 1 and the end faces of the female structure 2.

[0023] The male structure 1 is provided with a collimator 15 and a glass window 16 embedded in the male structure 1, the glass window 16 is opposite to the collimator 15, and the glass window 16 seals the collimator 15 inside the male structure 1. The female structure 2 is correspondingly provided with a collimator 25 and a glass window 26, and the arrangement of the collimator 2 and the glass window 26 in the female structure 2 is the same as that of the collimator 15 and the glass window 16 in the male structure 1.

[0024] The collimator 1 15 and the collimator 2 25 are sealed in the male structure 1 and the female structure 2, respectively, to prevent dust and other pollutants from contaminating the collimator 1 15 and the collimator 2 25. When the male structure 1 and the female structure 2 are connected, the optical axes of the collimator 1 15 and the collimator 2 25 are aligned.

[0025] Collimator 1 15 is used to expand the light beam emitted from the optical fiber to form parallel light, and collimator 2 25 is used to refocus the parallel light and reconstruct the light beam in the optical fiber at the end. The optical path principle is as follows:

[0026] Beam expansion: When the light signal emerges from the optical fiber, it first encounters the first lens. This lens expands the light beam through its optical properties, turning it from a small and concentrated beam into a larger and parallel beam. In this process, the area of ​​the light beam will be significantly expanded, usually by nearly a hundred times, thereby reducing the impact of dust, dirt, etc. on the transmission of optical signals.

[0027] Parallel light transmission: The expanded parallel light is transmitted in space until it encounters the second lens. During this process, since the light beam is parallel, it is able to maintain relatively stable light intensity and spot size over a longer distance.

[0028] Beam reconstruction: When parallel light reaches a focusing lens, the lens refocuses it and reconstructs the beam in a second fiber of the same size as the original beam.

[0029] When the male structure 1 and the female structure 2 are plugged and fixed, the glass window 1 16 and the glass window 2 26 are close to each other. The glass window 1 16 and the glass window 2 26 are close to each other but do not touch each other, avoiding wear caused by contact and ensuring the transparency of the glass window 1 16 and the glass window 2 26. The glass window 1 16 and the glass window 2 26 are both high-transmittance glass, and the surface is coated with a reflective coating to increase its transparency and reduce the impact on the light beam. If there are dust and other pollutants on the surface of the glass window 1 16 and the glass window 2 26, just wipe and clean the surface of the glass window 1 16 and the glass window 2 26.

[0030] The male head structure 1 includes a male head shell 11 and a male head seat 12 sealed with the male head shell 11, and the collimator 15 is installed on the male head seat 12. The male head seat 12 is provided with a plurality of mounting holes 13, each of which is provided with a ceramic sleeve 14, and the collimator 15 is installed in the ceramic sleeve 14.

[0031] The male head structure 1 includes a female head outer 21 and a female head seat 22 sealed and connected to the female head outer 21, and the collimator 25 is installed on the female head seat 22. The female head seat 22 is provided with a plurality of mounting holes 23, each of which is provided with a ceramic sleeve 24, and the collimator 25 is installed in the ceramic sleeve 24.

[0032] In the above scheme, collimator 1 15 and collimator 2 25 are arranged correspondingly, and ceramic sleeve 1 14 and ceramic sleeve 2 24 are used as mounting seats respectively, which have good stability compared with the existing metal mounting seats. The male head structure 1 and the female head structure 2 are reasonably designed, compact, small in size, easy to disassemble and assemble, and highly practical.

[0033] The expanded beam connector of this scheme is provided with a glass window 16 and a glass window 26, which can protect the collimator 15 and the collimator 25 and facilitate cleaning. The male structure 1 and the female structure 2 are plugged and fixed, which can realize quick plug-in and plug-out docking, and can be applied to ship shore power and medical endoscopes. The fully enclosed structure can effectively isolate dust particles, water vapor and energy substances in the external environment, and the structure is more stable. The collimator 15 and the collimator 2 25 use a ceramic sleeve 24 as a mounting seat, which has a more stable structure, higher precision, and lower insertion loss.

[0034] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. An optical fiber expansion beam connector, characterized in that: It comprises a male structure and a female structure, wherein the male structure is plugged and fixed with the female structure; The male head structure is provided with a collimator 1 and a glass window 1 embedded in the male head structure, the glass window 1 is opposite to the collimator 1, and the glass window 1 seals the collimator 1 inside the male head structure; A second collimator and a second glass window are correspondingly arranged in the female head structure. When the male head structure and the female head structure are connected, the optical axes of the first collimator and the second collimator are aligned.

2. The optical fiber expansion beam connector according to claim 1, characterized in that: The male structure is provided with a plurality of positioning pins in a circumferential direction, and the female structure is provided with a plurality of positioning holes, and the positioning holes correspond to the positioning pins one by one.

3. The optical fiber expansion beam connector according to claim 2, characterized in that: When the male structure and the female structure are plugged and fixed, the glass window 1 and the glass window 2 are close to each other.

4. The optical fiber expansion beam connector according to claim 1, characterized in that: The male head structure comprises a male head shell and a male head seat sealed with the male head shell, and the collimator 1 is mounted on the male head seat.

5. The optical fiber expansion beam connector according to claim 4, characterized in that: The male head seat is provided with a plurality of mounting holes 1, each of the mounting holes 1 is provided with a ceramic sleeve 1, and the collimator 1 is installed in the ceramic sleeve 1.

6. The optical fiber expansion beam connector according to claim 1, characterized in that: The male head structure includes a female head shell and a female head seat sealed with the female head shell, and the second collimator is mounted on the female head seat.

7. The optical fiber expansion beam connector according to claim 6, characterized in that: The female head seat is provided with a plurality of mounting holes 2, each of the mounting holes 2 is provided with a ceramic sleeve 2, and the collimator 2 is installed in the ceramic sleeve 2.

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