Fixing jig for lens light transmittance detection

Abstract

The utility model discloses a fixing jig for detecting the light transmittance of a lens, which comprises a fixing table, an adjustable sliding frame arranged at the upper end of the fixing table, an adjustable moving plate arranged in the sliding frame, and a lifting driving mechanism, the lifting driving mechanism comprises first supports, supporting rods and a connecting base, the first supports are fixedly connected to the left end and the right end of the upper surface of the moving plate correspondingly, the left end and the right end of the top wall of the sliding frame are fixedly connected with second supports correspondingly, and the lower ends of the second supports and the upper ends of the first supports are rotationally connected with the supporting rods correspondingly; the ends, close to the center of the sliding frame, of every two vertically adjacent supporting rods are rotationally connected with the end, away from the center of the sliding frame, of the same connecting base, the fixing jig for lens light transmittance detection achieves simultaneous stable clamping and fixing of a plurality of lenses by driving the connecting rod mechanism through the electric push rods, meanwhile, electric transverse movement of the lenses is achieved, and the detection accuracy is improved. And the detection efficiency of lens light transmittance detection is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of optical microlens manufacturing and processing technology, specifically a fixture for testing the light transmittance of a lens. Background Technology

[0002] Car front-facing dashcams, rear-facing reversing cameras, security monitoring lenses, facial recognition lenses, and small drone aerial photography lenses all utilize microlenses. Light transmittance testing is a crucial step in the production process of these microlenses. The basic principle of lens transmittance testing is to illuminate the lens from one side, measure the intensity of the light transmitted through the lens, and compare it to the intensity of the incident light to calculate the transmittance. Transmittance is usually expressed as a percentage, reflecting the lens's ability to transmit light.

[0003] Some existing lens transmittance testing fixtures use a single electric push rod to directly drive the clamping plate to position and clamp the optical microlens. Other lens transmittance testing fixtures use a manual replacement method for individual optical microlenses. After the transmittance of an optical microlens is tested, the fixture is manually opened to replace the optical microlens.

[0004] There are some problems with the fixtures used for transmitting light to these lenses. For example, the method of directly driving the clamping plate with a single electric push rod results in a single point of force on the clamping plate, which affects the overall stability of the clamping plate during the clamping process. The method of manually replacing individual optical microlenses greatly limits the efficiency of continuous transmitting light to these microlenses. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide a fixing fixture for lens transmittance testing. It uses an electric push rod to drive a linkage mechanism to achieve stable clamping and fixing of multiple lenses at the same time, and at the same time realizes the electric lateral movement of the lenses, which greatly improves the detection efficiency of lens transmittance testing and can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a fixed fixture for testing lens transmittance, comprising a fixed platform, an adjustable sliding frame at the upper end of the fixed platform, an adjustable movable plate inside the sliding frame, and a lifting drive mechanism.

[0007] The lifting drive mechanism includes a support 1, a support rod, and a connecting seat. The support 1 is fixedly connected to the left and right ends of the upper surface of the moving plate, and the left and right ends of the top wall of the sliding frame are fixedly connected to the support 2. The lower end of the support 2 and the upper end of the support 1 are rotatably connected to the support rod. The ends of two vertically adjacent support rods near the center of the sliding frame are rotatably connected to the ends of the same connecting seat away from the center of the sliding frame. The linkage mechanism is driven by an electric push rod to achieve simultaneous stable clamping and fixing of multiple lenses, and at the same time realizes the electric horizontal movement of the lenses, which greatly improves the detection efficiency of lens transmittance detection.

[0008] Furthermore, a controller is provided on the left end of the upper surface of the fixed platform. The input terminal of the controller is electrically connected to an external power supply to control various electrical appliances.

[0009] Furthermore, the lifting drive mechanism also includes an electric push rod, a drive seat, and drive handles. The electric push rod is disposed at the upper end of the sliding frame. The telescopic end of the electric push rod is fixedly connected to the drive seat. The lower end of the drive seat is rotatably connected to symmetrically distributed drive handles. The lower ends of the drive handles are rotatably connected to the ends of the laterally adjacent connecting seats near the center of the sliding frame. The input end of the electric push rod is electrically connected to the output end of the controller to provide driving force for the opposite movement of the connecting seats.

[0010] Furthermore, guide posts are fixedly connected to both the left and right ends inside the sliding frame, and the outer surfaces of the guide posts are slidably connected to the corresponding ends of the moving plate. The lower end of the moving plate and the bottom wall of the sliding frame are fixedly connected to evenly distributed arc-shaped clamps, which provide guidance for the movement of the moving plate and simultaneously achieve stable clamping of the optical microlens.

[0011] Furthermore, the fixed platform has symmetrically distributed sliding openings in the middle, and sliding rods are slidably connected inside each sliding opening. The lower end of each sliding rod is fixedly connected to the upper end of the support plate, and a transmittance meter is installed at the upper end of each sliding rod. The transmittance meter is bidirectionally electrically connected to the controller. A horizontal plate is fixedly connected to the lower end of the fixed platform, and an electric push rod II is installed in the middle of the upper surface of the horizontal plate. The telescopic end of the electric push rod II is fixedly connected to the lower end of the support plate, and the input end of the electric push rod II is electrically connected to the output end of the controller to realize the transmittance detection of the optical lens.

[0012] Furthermore, the fixed platform is provided with a sliding groove inside, the lower end of the sliding frame is slidably connected to the inside of the sliding groove, and a screw is rotatably connected inside the sliding groove. The middle part of the screw is threadedly connected to the lower end of the sliding frame, so as to realize the lateral movement of the sliding frame.

[0013] Furthermore, a motor is provided at the left end of the upper surface of the horizontal plate, a drive pulley is fixedly connected to the left end of the motor output shaft, a driven pulley is fixedly connected to the left end of the screw, the drive pulley and the driven pulley are connected by a transmission belt, and the input end of the motor is electrically connected to the output end of the controller to provide driving force for the lateral movement of the sliding frame.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This lens transmittance testing fixture has the following advantages:

[0015] 1. The electric push rod drives the linkage mechanism to achieve simultaneous and stable clamping and fixing of multiple lenses, replacing the method of a single electric push rod. This makes the force on the moving plate more uniform, further improves the stability of clamping and fixing multiple lenses, and greatly improves the detection accuracy of lens transmittance.

[0016] 2. The motor drives the screw through the pulley mechanism to realize the lateral movement of the sliding frame, and finally realizes the lateral movement of the optical microlens. There is no need to manually replace the optical microlens after the transmittance of each optical microlens is tested, which greatly improves the detection efficiency of lens transmittance testing. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a cross-sectional view of the internal structure of this utility model;

[0019] Figure 3 This is an enlarged structural diagram of point A in this utility model.

[0020] In the diagram: 1 Fixed platform, 2 Lifting drive mechanism, 21 Electric push rod one, 22 Support one, 23 Support rod, 24 Connecting seat, 25 Drive seat, 26 Drive handle, 3 Slide groove, 4 Sliding frame, 5 Screw, 6 Driven pulley, 7 Drive pulley, 8 Motor, 9 Horizontal plate, 10 Moving plate, 11 Guide column, 12 Arc-shaped clamp, 13 Slide rod, 14 Transmittance meter, 15 Electric push rod two, 16 Controller. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-3This embodiment provides a technical solution: a fixed fixture for testing lens transmittance, including a fixed platform 1, an adjustable sliding frame 4 is provided at the upper end of the fixed platform 1, an adjustable moving plate 10 is provided inside the sliding frame 4, a controller 16 is provided at the left end of the upper surface of the fixed platform 1, the input end of the controller 16 is electrically connected to an external power supply, and a lifting drive mechanism 2 is also included.

[0023] Lifting drive mechanism 2 includes a support 22, a support rod 23, and a connecting seat 24. The support 22 is fixedly connected to the left and right ends of the upper surface of the moving plate 10. Supports 2 are fixedly connected to the left and right ends of the top wall of the sliding frame 4. Support rods 23 are rotatably connected to the lower end of support 2 and the upper end of support 22. The ends of two vertically adjacent support rods 23 closest to the center of the sliding frame 4 are rotatably connected to the ends of the same connecting seat 24 furthest from the center of the sliding frame 4. The lifting drive mechanism 2 also includes an electric push rod 21, a drive seat 25, and... The drive handle 26 and the electric push rod 21 are located at the upper end of the sliding frame 4. The telescopic end of the electric push rod 21 is fixedly connected to the drive seat 25. The lower end of the drive seat 25 is rotatably connected to the symmetrically distributed drive handles 26. The lower ends of the drive handles 26 are rotatably connected to the ends of the laterally adjacent connecting seats 24 near the center of the sliding frame 4. The input end of the electric push rod 21 is electrically connected to the output end of the controller 16. The left and right ends of the sliding frame 4 are fixedly connected to the guide posts 11. The outer surfaces of the guide posts 11 are slidably connected to the corresponding ends of the moving plate 10. Next, the lower end of the moving plate 10 and the bottom wall of the sliding frame 4 are both fixedly connected with evenly distributed arc-shaped clamping plates 12. The optical microlens to be tested is placed vertically on the upper end of the lower arc-shaped clamping plate 12. Then, the controller 16 realizes the operation of the electric push rod 21. The extension end of the electric push rod 21 extends and pushes the drive seat 25 to move down. The downward movement of the drive seat 25 drives the upper ends of the two drive handles 26 to move down. The lower ends of the drive handles 26 push the horizontally adjacent connecting seats 24 to rotate away from the center of the sliding frame 4, thereby causing the support rods 23 to rotate. Rotating away from the center of the sliding frame 4, the two vertically adjacent support rods 23 support each other (the included angle between the two vertically adjacent support rods 23 does not exceed 180 degrees), the overall support length is stretched and a downward thrust is generated, which ultimately causes the two lower support rods 23 to push the moving plate 10 through the corresponding support 22, and move down under the guidance of the guide column 11. The downward movement of the moving plate 10 drives the previous arc-shaped clamping plate 12 to move down. The two vertically adjacent arc-shaped clamping plates 12 work together to achieve stable clamping of the optical microlens.

[0024] The fixed platform 1 has symmetrically distributed sliding openings in its center. Each sliding opening has a sliding rod 13 slidably connected inside. The lower end of each sliding rod 13 is fixedly connected to the upper end of a support plate. Each sliding rod 13 has a transmittance meter 14 installed at its upper end, and the transmittance meter 14 is bidirectionally electrically connected to a controller 16. A horizontal plate 9 is fixedly connected to the lower end of the fixed platform 1. An electric push rod 15 is installed in the center of the upper surface of the horizontal plate 9. The telescopic end of the electric push rod 15 is fixedly connected to the lower end of the support plate. The input end of the electric push rod 15 is electrically connected to the output end of the controller 16. When the electric push rod 15 is in operation, the telescopic end of the electric push rod 15 retracts and drives the two slide rods 13 to move down through the support plate. The downward movement of the slide rods 13 drives the vertically adjacent transmittance meters 14 to move down. When the light emission port of the transmittance meter 14 is longitudinally aligned with the central axis of the optical microlens, the controller 16 closes the electric push rod 15 and enables the transmittance meter 14 to operate. The transmittance meter 14 emits light to the optical microlens. By the ratio of the emitted light to the received light, the transmittance of the optical microlens is calculated, and the transmittance information is sent to the signal receiving end of the controller 16.

[0025] The fixed platform 1 has a sliding groove 3 inside. The lower end of the sliding frame 4 is slidably connected to the inside of the sliding groove 3. The inside of the sliding groove 3 is rotatably connected to a screw 5. The middle part of the screw 5 is threadedly connected to the lower end of the sliding frame 4. The left end of the upper surface of the horizontal plate 9 is equipped with a motor 8. The left end of the output shaft of the motor 8 is fixedly connected to a drive pulley 7. The left end of the screw 5 is fixedly connected to a driven pulley 6. The drive pulley 7 and the driven pulley 6 are connected by a transmission belt. The input end of the motor 8 is electrically connected to the output end of the controller 16. After the transmittance detection of one optical microlens is completed, the controller 16 starts the motor 8. The output shaft of the motor 8 rotates, which drives the drive pulley 7 to rotate. The drive pulley 7 drives the driven pulley 6 to rotate through the transmission belt, which in turn drives the screw 5 to rotate, so that the sliding frame 4 slides to the right inside the sliding groove 3. When the next optical microlens reaches the designated position, the controller 16 shuts off the motor 8 and then performs the transmittance detection of the next optical microlens.

[0026] The working principle of the fixed fixture for lens transmittance testing provided by this utility model is as follows: During operation, the operator first places the fixed platform 1, the sliding frame 4, and other mechanisms stably in the horizontal working area. After the placement is stable, the operator vertically places the small optical lens to be tested on the upper end of the lower arc-shaped clamp 12. Then, the controller 16 drives the electric push rod 21. The extension end of the electric push rod 21 extends and pushes the drive seat 25 downward. The downward movement of the drive seat 25 drives the upper ends of the two drive handles 26 downward. The lower ends of the drive handles 26 push the horizontally adjacent connecting seats. 24 rotates away from the center of the sliding frame 4, causing all support rods 23 to rotate away from the center of the sliding frame 4. Two vertically adjacent support rods 23 support each other (the included angle between two vertically adjacent support rods 23 does not exceed 180 degrees). The overall support length is extended, generating a downward thrust. Ultimately, the two lower support rods 23 push the moving plate 10 through their corresponding supports 22, moving it downward under the guidance of the guide column 11. The downward movement of the moving plate 10 causes the previously lowered arc-shaped clamping plate 12 to move downward as well. The two vertically adjacent arc-shaped clamping plates 12 cooperate... To achieve stable clamping of the optical microlens, once the clamping is stable, the operator uses controller 16 to close electric push rod 21 and activate electric push rod 15. The retraction end of electric push rod 15 retracts, causing two sliding rods 13 to move downwards via a support plate. The downward movement of sliding rods 13 causes the vertically adjacent transmittance meters 14 to move downwards. When the light emission port of transmittance meter 14 aligns longitudinally with the central axis of the optical microlens, controller 16 closes electric push rod 15 and activates transmittance meter 14. Transmittance meter 14 emits light towards the optical microlens. The emitted and received light... The transmittance of the optical microlens is calculated by the ratio of the lines, and the transmittance information is sent to the signal receiving end of the controller 16. After the transmittance detection of one optical microlens is completed, the controller 16 starts the motor 8. The output shaft of the motor 8 rotates, which drives the drive pulley 7 to rotate. The drive pulley 7 drives the driven pulley 6 to rotate through the transmission belt, which in turn drives the screw 5 to rotate, so that the sliding frame 4 slides to the right inside the slide groove 3. When the next optical microlens reaches the designated position, the controller 16 shuts off the motor 8 and then performs the transmittance detection of the next optical microlens.

[0027] It is worth noting that the transmittance meter 14 disclosed in the above embodiments can be a DP-KTJ-100 transmittance meter, and the controller 16 controls the operation of the electric push rod 21, the motor 8, the transmittance meter 14 and the electric push rod 15 using methods commonly used in the prior art.

[0028] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A fixture for testing the transmittance of a lens, comprising a fixed stage (1), an adjustable sliding frame (4) provided at the upper end of the fixed stage (1), and an adjustable movable plate (10) provided inside the sliding frame (4), characterized in that: It also includes a lifting drive mechanism (2); Lifting drive mechanism (2): It includes support one (22), support rod (23) and connecting seat (24). Support one (22) is fixedly connected to the left and right ends of the upper surface of the moving plate (10). Support two is fixedly connected to the left and right ends of the top wall of the sliding frame (4). Support rod (23) is rotatably connected to the lower end of support two and the upper end of support one (22). The ends of two vertically adjacent support rods (23) near the center of the sliding frame (4) are rotatably connected to the end of the same connecting seat (24) away from the center of the sliding frame (4).

2. The fixing fixture for detecting lens transmittance according to claim 1, characterized in that: A controller (16) is provided on the left end of the upper surface of the fixed platform (1), and the input end of the controller (16) is electrically connected to an external power supply.

3. The fixing fixture for detecting lens transmittance according to claim 2, characterized in that: The lifting drive mechanism (2) further includes an electric push rod (21), a drive seat (25), and a drive handle (26). The electric push rod (21) is located at the upper end of the sliding frame (4). The extension end of the electric push rod (21) is fixedly connected to the drive seat (25). The lower end of the drive seat (25) is rotatably connected to symmetrically distributed drive handles (26). The lower ends of the drive handles (26) are rotatably connected to the end of the transversely adjacent connecting seat (24) near the center of the sliding frame (4). The input end of the electric push rod (21) is electrically connected to the output end of the controller (16).

4. The fixing fixture for detecting lens transmittance according to claim 1, characterized in that: The sliding frame (4) has guide columns (11) fixedly connected to both the left and right ends. The outer surfaces of the guide columns (11) are slidably connected to the corresponding ends of the moving plate (10). The lower end of the moving plate (10) and the bottom wall of the sliding frame (4) are fixedly connected to evenly distributed arc-shaped clamps (12).

5. The fixing fixture for detecting lens transmittance according to claim 2, characterized in that: The fixed platform (1) has symmetrically distributed sliding openings in the middle. Each sliding opening is slidably connected to a sliding rod (13). The lower end of each sliding rod (13) is fixedly connected to the upper end of the support plate. Each sliding rod (13) is equipped with a transmittance meter (14) at the upper end. Each transmittance meter (14) is bidirectionally electrically connected to the controller (16). The lower end of the fixed platform (1) is fixedly connected to a horizontal plate (9). The middle of the upper surface of the horizontal plate (9) is equipped with an electric push rod II (15). The telescopic end of the electric push rod II (15) is fixedly connected to the lower end of the support plate. The input end of the electric push rod II (15) is electrically connected to the output end of the controller (16).

6. The fixing fixture for detecting lens transmittance according to claim 5, characterized in that: The fixed platform (1) is provided with a sliding groove (3) inside. The lower end of the sliding frame (4) is slidably connected to the inside of the sliding groove (3). A screw (5) is rotatably connected inside the sliding groove (3). The middle part of the screw (5) is threadedly connected to the lower end of the sliding frame (4).

7. A fixture for detecting lens transmittance according to claim 6, characterized in that: A motor (8) is provided on the left end of the upper surface of the horizontal plate (9). A drive pulley (7) is fixedly connected to the left end of the output shaft of the motor (8). A driven pulley (6) is fixedly connected to the left end of the screw (5). The drive pulley (7) and the driven pulley (6) are connected by a transmission belt. The input end of the motor (8) is electrically connected to the output end of the controller (16).

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