Lens detection tool
By designing a central convex point corresponding to a pillar and a control side pillar for lens testing, combined with scale lines and a pressure device, the problem of position adjustment during the testing of lenses of different specifications was solved, achieving high-precision lens testing.
Patent Information
- Application Number
- CN202423280471.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-30
AI Technical Summary
Existing lens testing equipment requires multiple position adjustments when testing lenses of different sizes, which affects the accuracy of the testing.
A lens testing tool was designed, including a testing stage, a central convex point corresponding column, and a reference testing side column. By adjusting the position and scale lines of the reference testing side column, it can adapt to the curvature of lenses of different specifications. Combined with the pressure adjustment of the pressure device, accurate testing can be achieved.
It improves the accuracy of lens testing and can automatically adjust the position according to different lens specifications to ensure the accuracy of test results.
Smart Images
Figure CN223623817U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of lens testing technology, and specifically relates to a lens testing tool. Background Technology
[0002] Lenses are transparent materials with one or more curved surfaces, made of optical materials such as glass or resin. After the lens is processed, a series of indicators need to be inspected, including the surface of the lens and the stress of the lens.
[0003] For the outer surface of a lens, some trigger-type detectors can effectively detect the concave points on the lens surface, measure the height difference of the lens surface, and determine the existence of concave points by calculating or comparing the difference between the actual surface and the ideal surface. However, for lenses of different specifications, the position often needs to be adjusted multiple times during the test. If the position is not accurate, it will affect the accuracy of the test. Utility Model Content
[0004] This invention provides a lens inspection tool that can detect the surface condition of a lens and is easy to adjust its position according to different lens specifications, thereby improving the accuracy of the inspection.
[0005] This utility model provides the following technical solution: a lens testing tool, including a testing platform, a placement truncated cone fixedly connected to the top of the testing platform, a central convex point corresponding column fixedly connected inside the placement truncated cone, the central convex point corresponding column being located at the center of the testing platform, and reference testing side columns provided on both sides of the central convex point corresponding column, the reference testing side columns being slidably connected to the testing platform, and a pressure contact head provided at the top of the reference testing side column, the pressure contact head contacting the concave end of the lens, and the top of the central convex point corresponding column contacting the convex end of the lens, and testing the lens surface based on the pressure value analyzed according to the height difference.
[0006] The detection platform is provided with an adjustment slot, and the control detection side column is slidably connected in the adjustment slot.
[0007] The truncated cone contains scale lines, which are distributed on the outer sides of the column corresponding to the central protrusion and the control detection side column.
[0008] The detection stage has an operating cavity, one end of the control detection side column passes through the detection stage, and the other end of the control detection side column is located inside the operating cavity.
[0009] The outer wall of the control detection side column is threaded with a locking nut, and there is a detection cavity between the pressure contact head and the control detection side column.
[0010] The detection chamber is equipped with a pressure device. When the lens curvature is large, the pressure detected by the pressure device is small. When the lens curvature is small, the pressure detected by the pressure device is large.
[0011] The placement pedestal is provided with two positioning slides, and an adjusting telescopic rod is fixedly connected to the outside of each of the two positioning slides. The adjusting telescopic rod is slidably connected to the placement pedestal, and a fixing pin is provided on the placement pedestal for securing the position of the adjusting telescopic rod.
[0012] The beneficial effects of this utility model are:
[0013] A central convex corresponding column is fixedly connected inside the placement truncated cone. The central convex corresponding column is located at the center of the testing stage. There are reference testing side columns on both sides of the central convex corresponding column. The positions of the two reference testing side columns can be adjusted according to the specifications of the lens. The lens can be directly placed into the placement truncated cone facing the central convex corresponding column. Through the pressure device in the testing chamber, the pressure detected by the pressure device is lower when the lens curvature is larger and higher when the lens curvature is smaller. The pressure detection values of the pressure devices distributed on the two reference testing side columns are consistent, so the surface condition of the lens can be detected. It is also easy to adjust the position according to different specifications of lenses, thus improving the accuracy of the test.
[0014] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is the front view of the present invention;
[0017] Figure 3 This is a top view of the present invention;
[0018] Figure 4 This is a schematic diagram of the structure of the column corresponding to the central protrusion in this utility model;
[0019] In the diagram: 1. Testing platform; 11. Operating chamber; 12. Adjustment groove; 2. Placement truncated cone; 21. Corresponding column to the central protrusion; 22. Comparison and testing side column; 221. Locking nut; 222. Pressure contact head; 223. Testing chamber; 224. Pressure device; 23. Scale line; 3. Positioning slide plate; 31. Adjustment telescopic rod; 32. Fixing lock pin. Detailed Implementation
[0020] Please see Figures 1-4The present invention provides the following technical solution: it includes a testing platform 1, a placement truncated cone 2 fixedly connected to the top of the testing platform 1, a central protrusion corresponding column 21 fixedly connected inside the placement truncated cone 2, the central protrusion corresponding column 21 being located at the center of the testing platform 1, and a reference testing side column 22 being provided on both sides of the central protrusion corresponding column 21, the reference testing side column 22 being slidably connected to the testing platform 1, and a pressure contact head 222 being provided at the top of the reference testing side column 22, the pressure contact head 222 contacting the concave end of the lens, and the top of the central protrusion corresponding column 21 contacting the convex end of the lens, and the surface of the lens being tested based on the pressure value analyzed according to the height difference.
[0021] In this implementation scheme: A central convex point corresponding column 21 is fixedly connected inside the placement frustum 2. The central convex point corresponding column 21 is located at the center of the detection stage 1. Reference detection side columns 22 are provided on both sides of the central convex point corresponding column 21. The positions of the two reference detection side columns 22 can be adjusted according to the lens specifications. The reference detection side columns 22 are slidable within the adjustment groove 12. The scale line 23 facilitates the adjustment of the reference detection side columns 22. After adjustment to the desired position, the position of the reference detection side columns 22 can be locked using the locking nut 221. The lens can then be directly placed into the placement frustum 2 with the central convex point corresponding column 21 facing it. The pressure sensor 224 inside the detection chamber 223 detects the pressure of the lens, which has a large curvature. With low force and small lens curvature, the pressure detected by pressure gauge 224 is high, and the detection values of pressure gauges 224 distributed on the two reference detection side columns 22 are consistent, thus enabling the detection of the surface condition of the lens. It is also easy to adjust the position according to different lens specifications, improving the accuracy of the detection. According to different lens specifications, qualified products can be placed in the detection stage 1 in advance to determine the normal pressure value range. In subsequent detection, the condition of the lens can be analyzed and judged according to the pressure value range. Before placing the lens, the two positioning slides 3 can be adjusted to the appropriate size of the lens. When placed in the placement round table 2, the position of the lens can be positioned, thus stabilizing the central protrusion corresponding column 21 and the reference detection side column 22 facing the lens.
[0022] The testing station 1 has an adjustment slot 12, and the reference testing side column 22 is slidably connected in the adjustment slot 12. Sliding the reference testing side column 22 in the adjustment slot 12 makes it easy to adjust its position according to the lens specification strip.
[0023] The truncated cone 2 has a scale line 23 inside, which is distributed on the outside of the central protrusion corresponding to the column 21 and the control detection side column 22. The control detection side column 22 is slid in the adjustment groove 12, and the scale line 23 can facilitate the adjustment of the position of the control detection side column 22.
[0024] The testing table 1 has an operating cavity 11. One end of the reference testing side column 22 passes through the testing table 1 and is located inside the operating cavity 11. The outer wall of the reference testing side column 22 is threaded with a locking nut 221. There is a testing cavity 223 between the pressure contact head 222 and the reference testing side column 22. The position of the reference testing side column 22 can be easily adjusted when it is located inside the operating cavity 11. The outer wall of the reference testing side column 22 has external threads, which can be locked and fixed with the locking nut 221.
[0025] The placement platform 2 is equipped with two positioning slide plates 3. Each of the two positioning slide plates 3 is fixedly connected to an adjusting telescopic rod 31. The adjusting telescopic rod 31 is slidably connected to the placement platform 2. The placement platform 2 is equipped with a fixing pin 32 for securing the position of the adjusting telescopic rod 31. When the two positioning slide plates 3 are adjusted to the appropriate size of the lens and placed into the placement platform 2, the position of the lens can be positioned, thereby stabilizing the central protrusion corresponding post 21 and the reference detection side post 22 facing the lens. The fixing pin 32 restricts the position of the adjusting telescopic rod 31.
[0026] The working principle and usage process of this utility model are as follows: The positions of the two reference detection side posts 22 can be adjusted according to the lens specifications. The reference detection side posts 22 are slidable within the adjusting groove 12. The scale line 23 facilitates the adjustment of the position of the reference detection side posts 22. After adjustment to the desired position, the position of the reference detection side posts 22 can be locked using the locking nut 221. The lens can then be directly placed into the placement frustum 2, aligning with the post 21 corresponding to the central convex point. Through the pressure device 224 within the detection chamber 223, the pressure detected by the pressure device 224 is lower for lenses with greater curvature and higher for lenses with smaller curvature. Furthermore, the two reference detection... The pressure gauges 224 distributed on the side column 22 have consistent detection values, which can detect the surface condition of the lens. The position can be easily adjusted according to different lens specifications to improve the accuracy of the test. According to different lens specifications, qualified products can be placed in the test stage 1 in advance to determine the normal pressure value range. In subsequent tests, the condition of the lens can be analyzed and judged according to the pressure value range. Before placing the lens, the two positioning slides 3 can be adjusted to the appropriate size of the lens. When placed in the placement round table 2, the position of the lens can be positioned, so that the central protrusion corresponding column 21 and the reference test side column 22 are stably facing the lens.
Claims
1. A lens testing tool, comprising a testing stage (1), characterized in that: The top of the testing platform (1) is fixedly connected to a frustum (2), and a central protrusion corresponding column (21) is fixedly connected inside the frustum (2). The central protrusion corresponding column (21) is located at the center of the testing platform (1). A reference testing side column (22) is provided on both sides of the central protrusion corresponding column (21). The reference testing side column (22) is slidably connected to the testing platform (1). A pressure contact head (222) is provided at the top of the reference testing side column (22). The pressure contact head (222) contacts the concave end of the lens, and the top of the central protrusion corresponding column (21) contacts the convex end of the lens. The surface of the lens is tested based on the pressure value analyzed according to the height difference.
2. The lens testing tool according to claim 1, characterized in that: The testing platform (1) is provided with an adjustment slot (12), and the control testing side column (22) is slidably connected in the adjustment slot (12).
3. The lens testing tool according to claim 1, characterized in that: The placement truncated cone (2) is provided with scale lines (23), which are distributed on the outside of the central protrusion corresponding column (21) and the control detection side column (22).
4. The lens testing tool according to claim 1, characterized in that: The testing platform (1) has an operating cavity (11), one end of the control detection side column (22) passes through the testing platform (1), and the other end of the control detection side column (22) is located inside the operating cavity (11).
5. A lens testing tool according to claim 1, characterized in that: The outer wall of the control detection side post (22) is threaded with a locking nut (221), and there is a detection cavity (223) between the pressure contact head (222) and the control detection side post (22).
6. A lens testing tool according to claim 5, characterized in that: The detection chamber (223) is equipped with a pressure device (224). When the lens curvature is large, the pressure detected by the pressure device (224) is small. When the lens curvature is small, the pressure detected by the pressure device (224) is large.
7. A lens testing tool according to claim 1, characterized in that: The placement pedestal (2) is provided with two positioning slide plates (3), and an adjusting telescopic rod (31) is fixedly connected to the outside of each of the two positioning slide plates (3). The adjusting telescopic rod (31) is slidably connected to the placement pedestal (2), and a fixing pin (32) is provided on the placement pedestal (2) for fastening the position of the adjusting telescopic rod (31).