Micro lens coating clamp
By designing a combination structure of limiting recess and clearance recess and elastic clamping, the problem of edge chipping of square columnar lenses in coating fixtures was solved, achieving efficient lens protection and processing stability, and improving yield and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI NEXTREND TECH
- Filing Date
- 2025-05-23
- Publication Date
- 2026-04-24
AI Technical Summary
In the prior art, prismatic Clens lenses are prone to chipping at the edges and corners due to rigid clamping in coating fixtures, making it difficult to effectively protect their fragile prismatic structure.
A microlens coating fixture is designed, which adopts a combination structure of limiting recess and clearance recess, combined with the elastic clamping of spring sheet and protrusion block to avoid edge contact. It uses a synchronous drive mechanism of multiple sets of transverse plates, and achieves rapid clamping and disassembly through the cooperation of bolts and push plates.
It effectively reduces the loss rate of microlenses during coating and cleaning processes, improves the yield and production efficiency of precision optical processing, and ensures the safety and stability of lens edges and corners.
Smart Images
Figure CN224160680U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lens processing technology, specifically a microlens coating fixture. Background Technology
[0002] Microlenses are widely used in various optical devices, such as optical communication devices and consumer electronics devices. Clens lenses used in optical communication are usually axially transparent cylindrical with dimensions such as a diameter of 1.0 mm and a length of 1.3 mm.
[0003] In the application of new technologies, the shape of the Clens is changed to axial light transmission but with a rectangular cross-section (e.g., a cross-section of 1.0mm*0.8mm and a length of 1.3mm). Therefore, a special coating fixture needs to be designed for this type of prismatic Clens lens. Since the four prisms of the prismatic lens are relatively fragile and can be chipped by slight contact, a new type of coating fixture needs to be developed to ensure that the lens edges do not come into contact with any other objects as much as possible during the processes of loading the lens into the fixture, ultrasonic cleaning, coating, and removing it from the fixture. Utility Model Content
[0004] Therefore, the purpose of this utility model is to provide a microlens coating fixture to solve the technical problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a microlens coating fixture, comprising a tray, wherein a clamping mechanism is slidably mounted on the tray for clamping and fixing a rectangular lens;
[0006] The clamping mechanism includes multiple sets of transverse sliding plates that are slidably installed in the holding tray. A limiting recess corresponding to the rectangular lens is provided on the outer wall of one side of the transverse sliding plate, and a clearance and root clearing recess communicating with the limiting recess is provided on the transverse sliding plate.
[0007] A spring sheet is installed on the outer wall of the other side of the transverse plate, and a protrusion for limiting the rectangular lens is installed on the outer wall of the spring sheet. The positions of the positioning socket and the protrusion are offset from the corners of the rectangular lens.
[0008] By adopting the above technical solution, the design of the limiting socket and the clearance socket ensures that the lens edges and corners completely avoid the clamping contact points. Combined with the elastic clamping structure of the spring and the protrusion, it avoids the edge and corner chipping problem caused by traditional rigid clamping. It is especially suitable for microlenses with rectangular or prismatic cross-sections that are fragile. It effectively reduces the loss rate of microlenses in processes such as coating and cleaning, and improves the yield and production efficiency of precision optical processing.
[0009] Furthermore, the limiting socket has a rectangular design corresponding to the rectangular lens, and the corners of the inner wall of the limiting socket are provided with clearance and root clearing sockets.
[0010] By adopting the above technical solution, it is ensured that after the rectangular lens enters the limiting socket, its corners will be located in the clearance socket.
[0011] Furthermore, multiple sets of the limiting sockets and spring pieces are correspondingly provided on both sides of the transverse plate, and the side wall of the transverse plate is provided with a relief groove corresponding to the spring piece.
[0012] By adopting the above technical solution, sufficient space is ensured on the transverse plate for the deformation of the spring sheet.
[0013] Furthermore, the cross-section of the protrusion is designed in an arc shape.
[0014] By adopting the above technical solution, the contact area between the protrusion and the rectangular lens is reduced, thereby reducing the probability of damage to the rectangular lens.
[0015] Furthermore, the limiting socket is designed as a triangle corresponding to the rectangular lens, and the inner corner of the limiting socket is provided with a clearance and root clearing socket. The cross-section of the protrusion is designed as a trapezoid, and the outer wall of the protrusion near the limiting socket is provided with a clearance and root clearing socket.
[0016] By adopting the above technical solution, this fixture can successfully clamp and fix the square rectangular lens and ensure the safety of its corners.
[0017] Furthermore, multiple sets of limiting blocks are installed on the outer wall of the side with the limiting recess of the transverse plate to prevent the spring sheet from exerting excessive pressure on the rectangular lens when multiple sets of transverse plates approach each other, and the installation position of the limiting blocks is staggered from the setting position of the limiting recess and the spring sheet.
[0018] By adopting the above technical solution, it is ensured that the setting of the limit block will not affect the use of the limit socket and the spring.
[0019] Furthermore, the holding tray is equipped with a central pressure plate and a side pressure plate for restricting the transverse sliding plates, and a push plate is installed inside the holding tray that is in contact with the outermost set of transverse sliding plates. The outer wall of the holding tray with the push plate is threaded with bolts corresponding to the push plate.
[0020] By adopting the above technical solution, the stability of the transverse plate during the movement process is guaranteed.
[0021] In summary, the present invention has the following main advantages:
[0022] This invention utilizes a limiting recess and a clearance recess design to completely avoid the clamping contact point at the lens edges and corners. Combined with the elastic clamping structure of the spring and protrusion, it avoids the edge chipping problem caused by traditional rigid clamping, making it particularly suitable for fragile microlenses with rectangular or prismatic cross-sections. The synchronous drive mechanism of multiple transverse plates, through the cooperation of bolts and push plates, enables rapid clamping and disassembly of batch lenses. The central pressure plate and side pressure plate ensure smooth sliding of the transverse plates, improving clamping accuracy. The elastic clamping force can be controlled by the limiting block to prevent excessive pressure. The overall structure is simple and compact, and easy to operate. It can meet the vertical clamping requirements of rectangular lenses and can also adapt to the rhomboid placement of square lenses by changing the transverse plates, offering strong versatility. This effectively reduces the loss rate of microlenses in processes such as coating and cleaning, improving the yield and production efficiency of precision optical processing. Attached Figure Description
[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0024] Figure 2 This is a three-dimensional structural diagram of the components of this utility model after disassembly;
[0025] Figure 3 This is a schematic diagram of the planar structure of the clamping mechanism of this utility model;
[0026] Figure 4 This is a partial planar structural schematic diagram of the clamping mechanism of this utility model;
[0027] Figure 5 This is a partial enlarged view of the clamping mechanism of this utility model when it compresses and fixes a rectangular lens.
[0028] Figure 6 This is a partial enlarged view of the clamping mechanism pressing and fixing the rectangular lens in the second embodiment of this utility model.
[0029] In the diagram: 1. Holding tray; 10. Rectangular lens; 2. Clamping mechanism; 20. Horizontal sliding plate; 21. Limiting recess; 22. Clearing recess; 23. Spring piece; 24. Protrusion block; 25. Limiting block; 26. Clearing groove; 3. Central pressure plate; 4. Side pressure plate; 5. Push plate; 6. Bolt. Detailed Implementation
[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.
[0031] The embodiments of this utility model will be described below based on its overall structure.
[0032] Example 1
[0033] A microlens coating fixture, such as Figure 1 - Figure 5 As shown, it includes a holding tray 1, on which a clamping mechanism 2 is slidably mounted for clamping and fixing the rectangular lens 10 to ensure the stability of the rectangular lens 10 in subsequent processing.
[0034] Specifically, the clamping mechanism 2 in this embodiment includes a transverse plate 20, a limiting socket 21, a clearance socket 22, a spring piece 23, a protrusion 24, a limiting block 25, and a clearance groove 26.
[0035] Multiple sets of transverse plates 20 are slidably installed in the holding tray 1. A limiting recess 21 corresponding to the rectangular lens 10 is opened on one outer wall of the transverse plate 20. A clearance recess 22 communicating with the limiting recess 21 is opened on the transverse plate 20. The limiting recess 21 is rectangular in design corresponding to the rectangular lens 10. The clearance recess 22 is provided at the corner of the inner wall of the limiting recess 21. Because the clearance recess 22 is set in the limiting recess 21 and its position is offset from the corner of the rectangular lens 10, it avoids the corner of the rectangular lens 10 from bumping against the limiting recess 21 after it is installed in the limiting recess 21, thereby avoiding the safety of the corner of the rectangular lens 10 in the limiting recess 21.
[0036] Meanwhile, multiple sets of limiting sockets 21 and spring pieces 23 are provided on both sides of the transverse plate 20 to ensure that multiple sets of rectangular lenses 10 can be installed on the transverse plate 20.
[0037] In this embodiment, a spring piece 23 is also installed on the outer wall of the other side of the transverse plate 20. At the same time, a protrusion 24 for limiting the rectangular lens 10 is installed on the outer wall of the spring piece 23. The installation position of the protrusion 24 is offset from the corner of the rectangular lens 10, so that when the transverse plates 20 approach each other, the protrusion 24 will disengage from the outer wall of the rectangular lens 10. Since the protrusion 24 is located on the outside of the spring piece 23, the spring piece 23 will not contact the rectangular lens 10, thereby avoiding the outer corner of the rectangular lens 10 from being bumped, and further reducing the probability of damage to the corner of the rectangular lens 10.
[0038] Furthermore, the side wall of the transverse plate 20 is provided with a relief groove 26 corresponding to the spring piece 23, ensuring that there is enough space on the transverse plate 20 for the subsequent spring piece 23 to deform. At the same time, the cross section of the protrusion 24 in this embodiment is designed with an arc shape to reduce the damage to the rectangular lens 10 when the protrusion 24 comes into contact with it.
[0039] In this embodiment, the transverse plate 20 has a limiting recess 21 on one side of its outer wall, on which multiple sets of limiting blocks 25 are installed. These blocks are used to prevent the spring sheet 23 from applying excessive pressure to the rectangular lens 10 when multiple sets of transverse plates 20 are close together. This further reduces the probability of damage to the rectangular lens 10 when the transverse plate 20 moves. Furthermore, the installation position of the limiting block 25 is offset from the setting position of the limiting recess 21 and the spring sheet 23, ensuring that the setting of the limiting block 25 will not affect the use of the limiting recess 21 and the spring sheet 23.
[0040] In this embodiment, the holding tray 1 is equipped with a central pressure plate 3 and a side pressure plate 4 for restricting the transverse sliding plate 20. By setting the central pressure plate 3 and the side pressure plate 4, the middle and top ends of the multiple transverse sliding plates 20 are restricted, thereby ensuring the stability of the transverse sliding plate 20 during movement. At the same time, a push plate 5 is installed inside the holding tray 1 that is in contact with the outermost set of transverse sliding plates 20. The outer wall of the holding tray 1 with the push plate 5 is threaded with a bolt 6 corresponding to the push plate 5. Rotating the bolt 6 will cause the push plate 5 to push the transverse sliding plate 20 under the push of the bolt 6, ensuring that the transverse sliding plate 20 can smoothly obtain the sliding power.
[0041] Example 2
[0042] A microlens coating fixture, such as Figure 6 As shown, the technical solution and parts of this embodiment are basically the same as those of Embodiment 1. The technically similar parts will not be described again here. This embodiment is mainly applicable to square rectangular lenses 10. The difference is that the limiting cavity 21 in this embodiment is a triangular design corresponding to the rectangular lens 10. After the square rectangular lens 10 is placed into the limiting cavity 21, it is in a rhomboid state when viewed from the top, so that only one corner of the rectangular lens 10 is located outside the limiting cavity 21. The inner corner of the limiting cavity 21 is provided with a clearance and clearing cavity 22, so that the innermost corner of the rectangular lens 10 in the limiting cavity 21 is also located in the corresponding clearance and clearing cavity 22, which can prevent it from being damaged.
[0043] Meanwhile, the protrusion 24 in this embodiment has a trapezoidal cross-section, and the outer wall of the protrusion 24 near the limiting socket 21 is provided with a clearance socket 22. This means that when the protrusion 24 approaches the rectangular lens 10, the outer corner of the rectangular lens 10 will enter the clearance socket 22 on the outer wall of the protrusion 24, so that the rectangular lens 10, which is a square in the shape of a rhombus, will also be clamped and fixed by this fixture.
[0044] The working principle of this utility model is as follows: When it is necessary to install the rectangular lens 10 onto the tray 1, the rectangular lens 10 is first placed into the limiting cavity 21. At this time, the two sets of corners of the rectangular lens 10 located in the limiting cavity 21 will be located in the clearance cavity 22. This can prevent the corners of the rectangular lens 10 from colliding with the limiting cavity 21 and causing damage.
[0045] After all the rectangular lenses 10 are placed into their corresponding limiting sockets 21, the bolt 6 is rotated. Under the action of the lead screw, it pushes the transverse plates 20 through the push plate 5, causing multiple sets of transverse plates 20 to move closer to each other. During this process, the central pressure plate 3 and the side pressure plate 4 restrict the transverse plates 20, preventing them from tilting upwards, thus ensuring the stability of the transverse plates 20 during sliding. As the transverse plates 20 gradually move closer together, the protrusion 24 at the end of the spring piece 23 will engage with the rectangular lenses 10. With the outer walls in contact, as the distance between the transverse plates 20 further decreases, the spring piece 23 will be squeezed and deformed. At this time, the spring piece 23 will push the protrusion 24, so that the rectangular lens 10 is fixed under the action of the protrusion 24, the spring piece 23 and the limiting socket 21. At the same time, the limiting block 25 will also control the distance between the two sets of adjacent transverse plates 20 to avoid the distance between the two transverse plates 20 being too small, which would cause the spring piece 23 to put too much pressure on the rectangular lens 10 and damage the rectangular lens 10.
[0046] Once all the transverse plates 20 have moved to their designated positions, the rectangular lens 10 is now fixed. Because the positions of the limiting recess 21 and the protrusion 24 are offset from the corners of the rectangular lens 10, the corners of the rectangular lens 10 are effectively prevented from being squeezed and damaged during the clamping and fixing process.
[0047] When it is necessary to clamp and fix the square rectangular lens 10, the transverse plate 20 in Embodiment 2 is replaced. The operation is basically the same as described above. The difference is that after the square rectangular lens 10 is placed into the limiting cavity 21, it is in a rhomboid state when viewed from above. As the transverse plates 20 move closer to each other, the outer corners of the rectangular lens 10 will enter the clearance cavity 22 at the end of the trapezoidal protrusion 24. The corners of the square rectangular lens 10 will not be squeezed, which can also effectively reduce the probability of damage to the rectangular lens 10 during clamping.
[0048] Once the rectangular lens 10 is fixed, the tray 1 can be placed at the position where the rectangular lens 10 will be coated for subsequent operations.
[0049] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.
Claims
1. A microlens coating jig characterized by comprising: Includes a holding tray (1), on which a clamping mechanism (2) is slidably mounted for clamping and fixing the rectangular lens (10); The clamping mechanism (2) includes multiple sets of transverse plates (20) slidably installed in the holding tray (1), and a limiting recess (21) corresponding to the rectangular lens (10) is provided on one side of the outer wall of the transverse plate (20), and a clearance recess (22) communicating with the limiting recess (21) is provided on the transverse plate (20). A spring sheet (23) is installed on the outer wall of the other side of the transverse plate (20), and a protrusion (24) for limiting the rectangular lens (10) is installed on the outer wall of the spring sheet (23). The positions of the positioning socket (22) and the protrusion (24) are offset from the corners of the rectangular lens (10).
2. The micro-lens coating jig according to claim 1, wherein: The limiting socket (21) has a rectangular design corresponding to the rectangular lens (10), and the corners of the inner wall of the limiting socket (21) are provided with clearance sockets (22).
3. The micro-lens coating jig according to claim 1, wherein: The limiting socket (21) and the spring piece (23) are provided in multiple sets on both sides of the transverse plate (20), and the side wall of the transverse plate (20) is provided with a relief groove (26) corresponding to the spring piece (23).
4. The micro-lens coating jig according to claim 1, wherein: The protrusion (24) has an arc-shaped cross-section.
5. The micro-lens coating jig according to claim 1, wherein: The limiting socket (21) is designed in a triangle shape corresponding to the rectangular lens (10), and the corner of the inner side of the limiting socket (21) is provided with a clearance socket (22). The protrusion (24) has a trapezoidal cross section, and the outer wall of the protrusion (24) near the limiting socket (21) is provided with a clearance socket (22).
6. The micro-lens coating jig of claim 1, wherein: The transverse plate (20) has a limiting recess (21) on one side of its outer wall, and multiple sets of limiting blocks (25) are installed to prevent the spring sheet (23) from exerting excessive pressure on the rectangular lens (10) when multiple sets of transverse plates (20) are close together. The installation position of the limiting block (25) is offset from the setting position of the limiting recess (21) and the spring sheet (23).
7. The micro-lens coating jig of claim 1, wherein: The holding tray (1) is equipped with a central pressure plate (3) and a side pressure plate (4) for limiting the transverse sliding plate (20), and a push plate (5) is installed inside the holding tray (1) to be in contact with the outermost set of transverse sliding plates (20), and a bolt (6) corresponding to the push plate (5) is threaded on the outer wall of the side of the holding tray (1) where the push plate (5) is located.