Micro-lens coupling device
By coordinating the adjustment stage with the flip coupling mechanism, and utilizing the buffer spring and electric telescopic rod to distribute pressure, the problems of low yield and high production cost caused by uneven convex lens surface are solved, thus achieving efficient microlens coupling.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-09
- Publication Date
- 2026-03-31
AI Technical Summary
In the prior art, the uneven surface of the convex lens causes it to move during the coupling process, reducing the yield rate. Some products require the use of adjustable precision pressure plates and control mechanisms, which increases production costs.
An adjustment platform and a flip coupling mechanism are used, and the pressure is distributed through the cooperation of a buffer spring and an electric telescopic rod to avoid damage to the optical fiber and microlens and maintain coupling accuracy.
This improved the yield rate, reduced production costs, prevented damage to the optical fiber and microlens, and maintained coupling accuracy.
Smart Images
Figure CN224067039U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of microlens coupling technology, and specifically to a microlens coupling device. Background Technology
[0002] Microlens arrays have important and wide-ranging applications in micro-optical systems, such as optical information processing, optical computing, optical interconnection, optical data transmission, and the generation of two-dimensional point light sources. They are also used in copiers, image scanners, fax machines, cameras, and medical devices. Furthermore, the miniaturization and integration of microlens array devices have made them highly adaptable, allowing for widespread use in communication, display, and imaging devices. Elliptical refractive microlens arrays used in semiconductor lasers can achieve laser focusing and collimation, beam shaping of laser diodes (LDs), and can also be used between optical fibers and integrated optical circuits to achieve effective coupling of optical devices. In fiber optic communication, elliptical microlenses couple light from free space into the fiber and calibrate the light exiting the fiber. Microlens arrays have already been applied in atomic optics, used to create atomic waveguides, beam splitters, Mach-Zehnder interferometers, or to trap atoms or perform quantum information processing on neutral atoms. Therefore, research on the materials, fabrication processes, and applications of microlens arrays is essential. Currently, there are two main methods for coupling microlenses on semiconductor laser arrays in various applications, with manual coupling being one of them.
[0003] During manual coupling, due to the uneven surface of the convex lens, it may move during coupling due to uneven force, thus reducing the yield. Some products use adjustable precision pressure plates to improve the yield. However, the cover plate may affect calibration and optical path focusing during use. Therefore, a fine-tunable control mechanism must be used to control the position of the cover plate, thereby increasing production costs.
[0004] Therefore, it is necessary to invent a microlens coupling device to solve the above problems. Utility Model Content
[0005] The purpose of this invention is to provide a microlens coupling device that improves the practicality of the cover plate through the cooperation of the adjustment stage and the flip coupling mechanism. This addresses the problem in the prior art where the surface of the convex lens is uneven, causing it to move during coupling due to uneven force, thus reducing the yield. Some products use adjustable precision pressure plates to improve the yield, but the cover plate may affect calibration and optical path focusing during use. Therefore, a fine-tunable control mechanism must be used to control the position of the cover plate, which increases production costs.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a microlens coupling device, including an adjustment stage, a flip coupling mechanism on the top of the adjustment stage, a clamping stage on the surface of the adjustment stage, a hidden groove on the left side of the clamping stage, a flip plate hinged to the inner wall of the hidden groove, a fixed plate fixedly connected to the inner wall of the flip plate, a sliding seat slidably connected inside the fixed plate, an arc-shaped groove on the inner side of the sliding seat, a buffer spring sleeved on the outer wall of the sliding seat, the buffer spring fixedly connected to the back side of the fixed plate, an electric telescopic rod fixedly connected to the back side of the fixed plate, a pressing block fixedly connected to the output end of the electric telescopic rod, the shape of the pressing block matching the arc-shaped groove of the fixed plate, the hidden groove accommodating the sliding seat to avoid the sliding seat and other parts affecting the optical path focusing, and during coupling, the cooperation between the pressing block and the fixed plate makes the pressure more evenly distributed and buffers the pressure of the electric telescopic rod, thereby avoiding excessive pressure that could damage the optical fiber and the microlens.
[0007] Preferably, a linkage telescopic rod is fixedly connected to the right side of the flipping plate, and a return spring is sleeved on the outer wall of the linkage telescopic rod. A control button is fixedly connected to the end of the linkage telescopic rod away from the flipping plate. The control button is located on the outer surface of the clamping platform and drives the flipping plate to rotate through the linkage telescopic rod.
[0008] Preferably, the surface of the clamping platform is provided with a limiting groove, the linkage telescopic rod is located inside the hidden groove, the inner side wall of the control button is fixedly connected to a limiting block, the limiting block and the limiting groove mesh with each other, the control button drives the limiting block to move, and the cooperation between the limiting block and the limiting groove is used to limit the angle of the sliding seat.
[0009] Preferably, the surface of the adjusting table is provided with an adjusting groove, and the inner sidewall of the adjusting table is rotatably connected to an adjusting screw. The clamping table is threadedly connected to the surface of the adjusting screw and slides inside the adjusting groove. Rotating the adjusting screw adjusts the position of the clamping table on the surface of the adjusting groove.
[0010] Preferably, the end of the clamping platform away from the sliding seat is fixedly connected to a mounting base, and the surface of the mounting base is provided with a placement groove, which is used to perform preliminary positioning of the optical fiber.
[0011] Preferably, the surface of the clamping platform is provided with a clamping groove, and a clamping screw is rotatably connected to the inner side wall of the clamping platform. One end of the clamping screw is fixedly connected to a handle, and the handle is rotatably connected to the outer side wall of the clamping platform. Rotating the handle drives the clamping screw to move.
[0012] Preferably, the threads at both ends of the clamping screw are in opposite directions, and the surface of the clamping screw is threaded with two sets of sawtooth clamping blocks. The sawtooth clamping blocks slide inside the clamping platform, and the optical fiber is positioned by the cooperation of the handle and the clamping screw. The optical fiber is clamped by the sawtooth clamping blocks driven by the clamping screw.
[0013] The technical effects and advantages provided by this utility model in the above technical solution are as follows:
[0014] By adjusting the stage and the flipping coupling mechanism, pulling out the control button causes the linkage telescopic rod to flip the plate. The elasticity of the return spring causes the control button to reset, thus achieving the engagement and limiting of the limit block and the limit groove. This allows the optical fiber to block the laser beam after adjustment, preventing the laser beam from overheating other parts and causing deformation. Then, the electric telescopic rod is activated, which uses the cooperation of the squeezing block and the fixed plate to distribute the pressure more evenly, thus buffering the pressure of the electric telescopic rod. This prevents excessive pressure from damaging the optical fiber and the microlens when the sliding seat pushes the microlens and maintains the coupling accuracy. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.
[0016] Figure 1 This is a schematic diagram of the overall first-view structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the overall second-view structure of this utility model;
[0018] Figure 3 This is a top view of the sawtooth clamping block of this utility model.
[0019] Figure 4 This is a schematic diagram of the flip-up plate structure of this utility model;
[0020] Figure 5 This is an enlarged schematic diagram of the linkage telescopic rod of this utility model.
[0021] Explanation of reference numerals in the attached figures:
[0022] 1. Adjustment table; 2. Flip coupling mechanism; 201. Clamping table; 202. Control button; 203. Hidden groove; 204. Flip plate; 205. Extrusion block; 206. Fixing plate; 207. Sliding seat; 208. Buffer spring; 209. Linkage telescopic rod; 210. Electric telescopic rod; 211. Return spring; 212. Limiting block; 213. Limiting groove; 3. Mounting seat; 4. Placement groove; 5. Adjustment groove; 6. Adjustment screw; 7. Clamping screw; 8. Serrated clamping block; 9. Clamping groove; 10. Handle. Detailed Implementation
[0023] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.
[0024] This utility model provides, for example Figure 1-5 The microlens coupling device shown includes an adjustment stage 1. A flip coupling mechanism 2 is provided on the top of the adjustment stage 1. The flip coupling mechanism 2 includes a clamping stage 201 disposed on the surface of the adjustment stage 1. A hidden groove 203 is provided on the left side of the clamping stage 201. A flip plate 204 is hinged to the inner wall of the hidden groove 203. A fixing plate 206 is fixedly connected to the inner wall of the flip plate 204. A sliding seat 207 is slidably connected inside the fixing plate 206, and an arc-shaped groove is provided on the inner side of the sliding seat 207. A buffer spring 208 is sleeved on the outer wall of the sliding seat 207. The buffer spring 208 is fixedly connected to the back side of the fixing plate 206. An electric telescopic rod 210 is fixedly connected to the back side of the fixing plate 206. A pressing block 205 is fixedly connected to the output end of the electric telescopic rod 210. The shape of the pressing block 205 matches the arc-shaped groove of the fixing plate 206. The hidden groove 203 accommodates the sliding seat 207, preventing the sliding seat 207 and other components from affecting the optical path focusing. The pressure is more evenly distributed by the cooperation of the squeezing block 205 and the fixed plate 206, and the pressure of the electric telescopic rod 210 is buffered to avoid damage to the optical fiber and microlens due to excessive pressure. A linkage telescopic rod 209 is fixedly connected to the right side of the flip plate 204. A return spring 211 is sleeved on the outer wall of the linkage telescopic rod 209. A control button 202 is fixedly connected to the end of the linkage telescopic rod 209 away from the flip plate 204. The control button 202 is set on the outer surface of the clamping table 201. The flip plate 204 is rotated by the linkage telescopic rod 209. A limit groove 213 is opened on the surface of the clamping table 201. The linkage telescopic rod 209 is located inside the hidden groove 203. A limit block 212 is fixedly connected to the inner wall of the control button 202. The limit block 212 and the limit groove 213 mesh with each other. The limit block 212 is moved by the control button 202, and the angle of the sliding seat 207 is limited by the cooperation of the limit block 212 and the limit groove 213.
[0025] Refer to the instruction manual appendix Figure 1-5The adjustment table 1 has an adjustment groove 5 on its surface. An adjustment screw 6 is rotatably connected to the inner wall of the adjustment table 1. The clamping table 201 is threaded to the surface of the adjustment screw 6 and slides inside the adjustment groove 5. Rotating the adjustment screw 6 adjusts the position of the clamping table 201 on the surface of the adjustment groove 5. A mounting base 3 is fixedly connected to the end of the clamping table 201 away from the sliding seat 207. A placement groove 4 is opened on the surface of the mounting base 3. The optical fiber is initially positioned by the cooperation between the mounting base 3 and the placement groove 4. A clamping groove 9 is opened on the surface of the clamping table 201. A clamping screw 7 is rotatably connected to the inner wall of the clamping table 201. A handle 10 is fixedly connected to one end of the clamping screw 7 and is rotatably connected to the outer wall of the clamping table 201. Rotating the handle 10 moves the clamping screw 7. The threads at both ends of the clamping screw 7 are in opposite directions. Two sets of sawtooth clamping blocks 8 are threadedly connected to the surface of the clamping screw 7. Block 8 slides inside the clamping stage 201. The optical fiber is positioned by the cooperation of the handle 10 and the clamping screw 7. The clamping screw 7 drives the serrated clamping block 8 to clamp the optical fiber. By cooperating with the adjustment stage 1 and the flip coupling mechanism 2, the control button 202 is pulled out to cause the linkage telescopic rod 209 to drive the flip plate 204 to flip. The elasticity of the return spring 211 drives the control button 202 to reset, so as to realize the engagement and limitation of the limit block 212 and the limit groove 213. This allows the optical fiber to block the laser beam after adjustment, preventing the laser beam from overheating other parts and causing deformation. Then, the electric telescopic rod 210 is activated, which uses the cooperation of the squeezing block 205 and the fixed plate 206 to distribute the pressure more evenly, so as to buffer the pressure of the electric telescopic rod 210. This prevents the pressure from being too high when the sliding seat 207 pushes the microlens, thus avoiding damage to the optical fiber and the microlens and maintaining the coupling accuracy.
[0026] The working principle of this practical application is as follows:
[0027] Refer to the instruction manual appendix Figure 1-5After adjusting the position of the adjustment table 1, the optical fiber is placed inside the placement slot 4, and the handle 10 is turned to drive the clamping screw 7 to rotate. The clamping screw 7 drives the serrated clamping block 8 to clamp the optical fiber, thereby achieving the positioning of the optical fiber and aligning it with the laser equipment. When adjusting the position of the clamping table 201 on the surface of the adjustment slot 5, the adjustment screw 6 is turned to adjust the position of the optical fiber and the microlens. After determining the position, the microlens is glued to the surface of the optical fiber. At this time, the control button 202 is pulled out to drive the linkage telescopic rod 209 to rotate the flip plate 204, and the elasticity of the return spring 211 drives the control button 202 to reset. The limiting block 212 and the limiting groove 213 are engaged and limited, thereby blocking the laser beam after the optical fiber is adjusted, preventing the laser beam from overheating the sawtooth clamping block 8 and the optical fiber and causing deformation. Then, the electric telescopic rod 210 is activated, which uses the cooperation of the squeezing block 205 and the fixing plate 206 to distribute the pressure more evenly, so as to buffer the pressure of the electric telescopic rod 210. This prevents the sliding seat 207 from pushing the microlens from excessive pressure, which could damage the optical fiber and the microlens, and maintains the coupling accuracy. After the coupling is completed, the above operation is repeated in reverse, so that the flip plate 204 returns to the inside of the hidden groove 203, avoiding interference with the next adjustment and coupling.
[0028] The above description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A microlens coupling device comprising an adjustment table (1), characterized in that: The top of the adjusting table (1) is provided with a turnover coupling mechanism (2), the turnover coupling mechanism (2) comprises a clamping table (201) arranged on the surface of the adjusting table (1), a hidden groove (203) is formed in the left side of the clamping table (201), a turnover plate (204) is hinged to the inner side wall of the hidden groove (203), a fixed plate (206) is fixedly connected to the inner side wall of the turnover plate (204), a sliding seat (207) is slidably connected in the inner side of the fixed plate (206), and an arc-shaped groove is formed in the inner side of the sliding seat (207), a buffer spring (208) is sleeved on the outer side wall of the sliding seat (207), the buffer spring (208) is fixedly connected to the back side of the fixed plate (206), an electric telescopic rod (210) is fixedly connected to the back side of the fixed plate (206), and an extrusion block (205) is fixedly connected to the output end of the electric telescopic rod (210); the shape of the extrusion block (205) is matched with the arc-shaped groove of the fixed plate (206).
2. The microlens coupling device according to claim 1, wherein: The right side of the turnover plate (204) is fixedly connected with a linkage telescopic rod (209), the linkage telescopic rod (209) is sleeved with a reset spring (211), one end of the linkage telescopic rod (209) away from the turnover plate (204) is fixedly connected with a control knob (202), and the control knob (202) is arranged on the outer side surface of the clamping table (201).
3. A microlens coupling device according to claim 2, characterized in that: The surface of the clamping table (201) is provided with a limiting groove (213), the linkage telescopic rod (209) is located in the hidden groove (203), and the inner side wall of the control knob (202) is fixedly connected with a limiting block (212); the limiting block (212) and the limiting groove (213) are matched with each other.
4. The microlens coupling device of claim 1, wherein: The surface of the adjusting table (1) is provided with an adjusting groove (5), and the inner side wall of the adjusting table (1) is rotatably connected with an adjusting screw rod (6); the clamping table (201) is threadedly connected to the surface of the adjusting screw rod (6) and slidably arranged in the adjusting groove (5).
5. The microlens coupling device of claim 1, wherein: One end of the clamping table (201) away from the sliding seat (207) is fixedly connected with a mounting seat (3), and the surface of the mounting seat (3) is provided with a mounting groove (4).
6. The microlens coupling device of claim 1, wherein: The surface of the clamping table (201) is provided with a clamping groove (9), and the inner side wall of the clamping table (201) is rotatably connected with a clamping screw rod (7); one end of the clamping screw rod (7) is fixedly connected with a handle (10), and the handle (10) is rotatably connected to the outer side wall of the clamping table (201).
7. A microlens coupling device according to claim 6, characterized in that: The screw threads of the clamping screw rod (7) at two ends are opposite in direction, two groups of sawtooth clamping blocks (8) are threadedly connected to the surface of the clamping screw rod (7), and the sawtooth clamping blocks (8) are slidably arranged in the clamping table (201).