Convenient and adjustable optical fiber collimation corner structure
By setting up an adjustment chute and an integrated lens push rod structure in the optical fiber collimator, the problem of focus operation in the traditional optical fiber collimator is solved, and the rapid and convenient lens position adjustment is achieved, and the energy reception efficiency of the spectrometer is improved. .
Patent Information
- Application Number
- CN202421008314.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-10
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-05-10
AI Technical Summary
Traditional fiber optic collimator needs to be disassembled and installed when focusing, which is troublesome and difficult to adjust to the position where the spectrometer receives the most energy in real time, and cannot be adjusted to the appropriate position quickly and conveniently.
A convenient and adjustable optical fiber collimated angle structure is designed. By setting up adjustment slides on both sides of the collimated angle body, the lens and the adjustment push rod are formed into an integrated structure, and the real-time position adjustment of the lens is achieved through the push rod to tilt. , simplify operations.
It realizes the speed and convenience of operation, reduces operating time, and can adjust the lens position in real time, ensures the maximum energy received by the spectrometer and improves the adjustment efficiency.
Smart Images
Figure CN222213006U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of optical fiber transmission equipment, and in particular to a convenient and adjustable optical fiber collimation angle structure. Background Art
[0002] The fiber collimator is mainly composed of a pigtail and a self-focusing lens with precise positioning. It can convert the transmission light in the optical fiber into quasi-parallel light, or couple the external parallel light into the single-mode optical fiber. It is mainly used in circulators, optical switches, passive optical networks and other devices. The basic principle of the fiber collimator is to place the fiber end face at the focus of the collimating lens to collimate the light beam, and then slightly adjust the position of the fiber end face near the focus to obtain the required working distance. Therefore, the working distance of the collimator is related to the distance L between the fiber head and the lens.
[0003] Based on this principle, it can be used to measure the gap between the wafer and the mask as feedback for leveling. After the white light is emitted from the optical fiber and passes through the collimation angle, it passes downward through the mask to the wafer (at this time, part of the light will be reflected on the mask surface), and then reflects to the mask and the reflected light at the lower surface of the mask interferes, and then enters the collimation angle, and then is received by the optical fiber into the spectrometer and the data is analyzed to obtain the distance between the wafer and the mask. Before this, the light needs to be collimated (adjusting the convergence point of the light).
[0004] However, when traditional technology is used to focus and change the position of the lens, it is necessary to first separate the optical fiber and the collimation angle, then remove a gland and the lens from the rear end, rotate the other gland to adjust the position axially, and then insert the lens. It is almost impossible to adjust to the position where the spectrometer receives the most energy. The entire adjustment method is cumbersome to operate and difficult to adjust to the appropriate position, and it cannot be adjusted in real time. Summary of the invention
[0005] The purpose of the utility model is to provide a convenient and adjustable optical fiber collimation angle structure that can conveniently adjust the lens position in real time, is easy and fast to operate, and has a good use effect.
[0006] The embodiment of the utility model is realized through the following technical scheme: a convenient and adjustable optical fiber collimation angle structure, comprising a collimation angle body and a reflector, wherein the reflector is arranged at the front end of the collimation angle body, and at least one side surface of the collimation angle body is provided with an adjustment slide groove; a sliding assembly is arranged in the collimation angle body, and the sliding assembly comprises a fixed cylinder, a lens and an adjustment push rod; a fixed cylinder, wherein the fixed cylinder is arranged in the collimation angle body, and the lens is installed in the fixed cylinder; an adjustment push rod, wherein one end of the adjustment push rod is connected to the outer surface of the fixed cylinder, and the other end of the adjustment push rod extends from the adjustment slide groove, and the sliding assembly is driven to move along the adjustment slide groove by the adjustment push rod.
[0007] Preferably, the sliding assembly further comprises a pressure-covering top cylinder, which is inserted into the rear end of the fixing cylinder and abuts against the lens.
[0008] Preferably, the gland top cylinder is connected to the fixing cylinder by threads.
[0009] Preferably, the collimating corner body is provided with a hollow guide hole, and the fixing cylinder is adapted to the size of the hollow guide hole.
[0010] Preferably, the collimating corner body is provided with a light-transmitting hole, and the light-transmitting hole is located at the lower side of the reflector; the axis of the light-transmitting hole is perpendicular to the hollow guide hole.
[0011] Preferably, a notch for installing the reflector is provided at the front end of the collimating corner body.
[0012] Preferably, the reflector is bonded in the notch.
[0013] Preferably, the collimating corner body adopts a flat structure.
[0014] The technical solution of the embodiments of the utility model has at least the following advantages and beneficial effects: compared with the prior art, the utility model has adjustment grooves on both sides of the collimation angle body, and the lens and the adjustment push rod form an integrated structure. The adjustment push rod extends from the adjustment groove so that the adjustment position can be manually adjusted, thereby achieving a real-time adjustment effect, being easy and fast to operate, and greatly shortening the operation time. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.
[0016] Figure 1 A schematic diagram of a convenient and adjustable optical fiber collimation angle structure provided in an embodiment of the utility model;
[0017] Figure 2 It is a schematic diagram of the internal structure of the convenient and adjustable optical fiber collimation angle structure in the utility model;
[0018] Figure 3 It is a structural schematic diagram of the collimating corner body in the utility model;
[0019] Figure 4 It is a structural schematic diagram of the sliding component in the utility model.
[0020] Icons: 1-collimation angle body, 11-adjustment slide groove, 12-light transmission hole, 13-slot, 14-hollow guide hole, 2-reflector, 3-sliding assembly, 31-lens, 32-fixed cylinder, 33-adjustment push rod, 34-pressure cover top cylinder. DETAILED DESCRIPTION
[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.
[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0023] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings. Specific embodiments
[0024] The following is further described in conjunction with specific embodiments. Figure 1-Figure 4 As shown, this embodiment is a convenient and adjustable optical fiber collimation angle structure, including a collimation angle body 1 and a reflector 2, the reflector 2 is arranged at the front end of the collimation angle body 1, and at least one side of the collimation angle body 1 is provided with an adjustment slide groove 11; a sliding component 3 is arranged in the collimation angle body 1, and the sliding component 3 includes a fixed cylinder 32, a lens 31 and an adjustment push rod 33; the fixed cylinder 32 is arranged in the collimation angle body 1, and the lens 31 is installed in the fixed cylinder 32; the adjustment push rod 33, one end of the adjustment push rod 33 is connected to the outer surface of the fixed cylinder 32, and the adjustment push rod 33 The other end extends out from the adjustment slot 11, and the sliding assembly 3 is driven to move along the adjustment slot 11 through the adjustment push rod 33; specifically, compared with the traditional technology, this solution is achieved by opening adjustment slots 11 on both sides of the collimation angle body 1, and setting an adjustment push rod 33 to be stuck in the adjustment slot 11 to connect the inside and the outside, the lens 31 is first installed tightly in the fixed tube 32, and then the adjustment push rod 33 is used to form an integrated structure with the fixed tube 32 and the lens 31, and then during the working process, the lens 31 can be driven to move its position in real time by manually turning the adjustment push rod 33, so as to facilitate finding the position where the spectrometer receives the maximum energy.
[0025] It should be noted that the adjusting push rod 33 and the fixing tube 32 are connected by threads. When the adjusting push rod 33 is moved to a suitable position, the adjusting push rod 33 is rotated to be tightly attached to the adjusting slide groove 11 to complete the locking to prevent position movement.
[0026] Reference Figure 2 and Figure 4 As shown, the sliding assembly 3 in this embodiment also includes a pressure cover top cylinder 34, which is inserted from the tail end of the fixed cylinder 32 and abuts against the lens 31, and the pressure cover top cylinder 34 and the fixed cylinder 32 are threadedly connected; specifically, in order to ensure that the lens 31 is tightly pressed and correctly positioned, the pressure cover top cylinder 34 is rotated and selected into the fixed cylinder 32, so that the lens 31 is fixed between the pressure cover top cylinder 34 and the fixed cylinder 32.
[0027] like Figure 2 and Figure 3 As shown, the collimating corner body 1 in this embodiment is provided with a hollow guide hole 14, the optical fiber is connected to one end of the collimating corner body 1, the light path passes through the hollow guide hole 14 and the lens 31, and is then reflected by the reflector 2, and the fixing tube 32 is adapted to the size of the hollow guide hole 14 to avoid radial runout.
[0028] This solution achieves a 90° turn of the optical fiber. If there is no turn, the optical fiber needs to pass through a larger bending radius (optical fiber has a larger bending radius due to its own characteristics), thus interfering with the light source.
[0029] In addition, it should be noted that the collimating corner body 1 is provided with a light-transmitting hole 12, which is located at the lower side of the reflector 2; the axis of the light-transmitting hole 12 is perpendicular to the hollow guide hole 14, and the white light passes through the lens 31 and is then emitted from the light-transmitting hole 12 by the reflector 2.
[0030] like Figure 1 and Figure 3 As shown, the front end of the collimating corner body 1 is provided with a notch 13 for installing the reflector 2. The reflector 2 is bonded in the notch 13.
[0031] The collimating corner body 1 in this embodiment has a transfer light source thereon, so a flat structure is adopted so as to have more space above the wafer mask.
[0032] The working principle of this scheme is as follows: after the overall structure is assembled, the collimating angle body 1 can be fixed to the equipment through the mounting hole. At this time, by toggling the end of the adjusting push rod 33, the entire sliding assembly 3 will move together, realizing the movement of the collimating lens 31 along the light path (the light focusing point is different for different positions of the lens 31). And the adjustment process is a real-time adjustment, and there is no need to repeatedly disassemble and assemble the collimating angle body 1. When the sliding assembly 3 moves to a certain position, the spectrometer displays the maximum received energy. Use a wrench to tighten the step bolts on both sides of the adjusting push rod 33 to fix the sliding assembly 3 and complete the debugging.
[0033] In addition, moving the lens 31 will change the convergence point of the light, and the ultimate goal is to ensure that the reflected interference light gathers more energy at the receiving point of the optical fiber. The light starts from the optical fiber and passes through the collimating corner body 1 to the mask and wafer, then reflects back and passes through the collimating lens 31 body again, and finally returns to the optical fiber.
[0034] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A convenient and adjustable optical fiber collimation angle structure, comprising a collimation angle body (1) and a reflector (2), wherein the reflector (2) is arranged at the front end of the collimation angle body (1), characterized in that: At least one side surface of the collimating corner body (1) is provided with an adjustment slide groove (11); A sliding assembly (3) is provided inside the collimating angle body (1), and the sliding assembly (3) comprises a fixing cylinder (32), a lens (31) and an adjusting push rod (33); A fixed cylinder (32), the fixed cylinder (32) being arranged in the collimating corner body (1), and the lens (31) being installed in the fixed cylinder (32); An adjusting push rod (33), one end of which is connected to the outer surface of the fixing tube (32), and the other end of which extends out from the adjusting slide groove (11), and the sliding assembly (3) is driven to move along the adjusting slide groove (11) by the adjusting push rod (33).
2. The convenient and adjustable optical fiber collimation angle structure according to claim 1, characterized in that: The sliding assembly (3) further comprises a pressure-covering top cylinder (34), which is inserted into the rear end of the fixing cylinder (32) and abuts against the lens (31).
3. The convenient and adjustable optical fiber collimation angle structure according to claim 2, characterized in that: The gland top cylinder (34) is connected to the fixing cylinder (32) by means of threads.
4. The convenient and adjustable optical fiber collimation angle structure according to claim 1, characterized in that: The collimating corner body (1) is provided with a hollow guide hole (14), and the fixing cylinder (32) is adapted to the size of the hollow guide hole (14).
5. The convenient and adjustable optical fiber collimation angle structure according to claim 4, characterized in that: The collimating corner body (1) is provided with a light-transmitting hole (12), and the light-transmitting hole (12) is located at the lower side of the reflector (2); The axis of the light-transmitting hole (12) is perpendicular to the hollow guide hole (14).
6. The convenient and adjustable optical fiber collimation angle structure according to claim 1, characterized in that: A notch (13) for mounting the reflector (2) is provided at the front end of the collimating corner body (1).
7. The convenient and adjustable optical fiber collimation angle structure according to claim 6, characterized in that: The reflector (2) is bonded in the notch (13).
8. The convenient and adjustable optical fiber collimation angle structure according to any one of claims 1 to 7, characterized in that: The collimating corner body (1) adopts a flat structure.