Biconvex lens detection protection tool for DUI detection
By using a simple structural design and damping cloth, the problem of damage to optical lenses during the fixing process in DUI testing was solved, thus achieving lens protection and improved testing accuracy.
Patent Information
- Application Number
- CN202520541924.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-03-25
AI Technical Summary
In the process of optical lens inspection, existing technologies are difficult to effectively prevent lens scratches and have insufficient inspection accuracy, especially when using a DUI profilometer, where lens fixation can easily cause damage.
A lens inspection protective fixture was designed, which adopts a combination of a simple structure and a damping cloth. It includes a fixture base, a positioning ring, and a damping cloth. The softness of the damping cloth and the protection of the insulating adhesive prevent the lens from being damaged during the fixing process, while enhancing stability.
It effectively protects the lens surface, reduces scratches and indentations, improves detection accuracy, ensures the lens is stably fixed on the DUI equipment, prevents damage caused by hard contact, and improves the accuracy of test results.
Smart Images
Figure CN223856690U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of optical fixing device technology, specifically a biconvex lens detection and protection fixture for DUI detection. Background Technology
[0002] A biconvex lens is a type of lens element comprising an incident surface and an exit surface. Its distinguishing feature is that the focal length is longer in the middle portion of the lens surface and shorter at the ends of each lens surface. Biconvex lenses are primarily used to converge light from point sources or to transmit images to other optical systems.
[0003] DUI profilometers are mainly used for the inspection of optical lenses, which are mainly divided into spherical, aspherical, and planar lenses. With the continuous development of society and the optical industry, aspherical lenses are widely used in light collection, projection, lighting, inspection, and focusing, and are indispensable, especially in the military, civilian, and aerospace fields. The demand for aspherical lenses will continue to grow in the future.
[0004] As an advanced optical inspection device, the DUI profilometer has demonstrated unique technological advantages and broad application prospects in multiple fields. Its non-contact measurement avoids surface damage that can occur with traditional contact measurements, and its rapid data acquisition enables the measurement of large-area surface morphology in a short time. With continuous technological advancements, its position in optical inspection will be further solidified, providing more industries with efficient and accurate measurement solutions.
[0005] However, when inspecting optical lenses, they need to be fixed, which can easily scratch them. Moreover, the current inspection accuracy for optical lenses is not high enough. Therefore, there is an urgent need for an improved technology to solve this problem in the existing technology. Utility Model Content
[0006] The purpose of this invention is to provide a biconvex lens testing and protection fixture that, through a simple structural design and the use of damping cloth, enables biconvex lenses with a diameter range of 320mm-500mm to be tested on a DUI device. While fixing the lens body, it also protects the convex surface, preventing damage to the processed lens surface caused by hard contact between the lens body and the fixture, reducing the stress caused by the lens's own weight, and making the test results more accurate, thereby solving the problems mentioned in the background art.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a biconvex lens detection and protection fixture for DUI detection, comprising a lens detection and protection fixture, wherein the lens detection and protection fixture includes a fixture base, a fixture positioning ring A, and a fixture positioning ring B;
[0008] The tooling base is square, with a circular slot in the center that passes through the tooling base, and the four outer corners of the tooling base are rounded.
[0009] The tooling positioning ring A and tooling positioning ring B are two identical semi-circular arc retaining rings.
[0010] Preferably, a limiting support ring is provided in the circular groove in the center of the tooling base. The limiting support ring and the tooling base are an integral structure. The bottom of the limiting support ring is at the same level as the bottom surface of the tooling base, and the upper surface of the limiting support ring is lower than the upper surface of the tooling base. The width of the limiting support ring is the same as the width of the tooling positioning ring A and the tooling positioning ring B.
[0011] The bottom of the tooling base is a rectangle of 320x320mm, and the thickness of the tooling base is 10mm.
[0012] Preferably, the tooling positioning ring A and tooling positioning ring B are spliced together to form a complete cylinder with an inner diameter of 280mm, an outer diameter of 300mm, and a height of 30mm.
[0013] The upper surface of the cylindrical positioning ring formed by splicing the tooling positioning ring A and tooling positioning ring B is provided with six damping cloths at equal angles.
[0014] Preferably, the surfaces of the lens inspection and protection fixture that come into contact with the lens are covered with insulating adhesive.
[0015] Preferably, the overall height of the lens inspection and protection fixture is 30mm.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] (1) The tooling positioning ring A and tooling positioning ring B are spliced together to form a cylindrical positioning ring. Six damping cloths are provided at equal angles on the upper surface of the positioning ring. The damping cloths are attached at six evenly distributed points to further improve the softness, reduce the scratches and indentations caused by the tooling due to the weight, and increase the friction to make the lens more stable on the tooling and less prone to sliding and rotating.
[0018] (2) The surfaces of the lens inspection protective fixture that come into contact with the lens are covered with insulating adhesive, which can effectively prevent the fixture from scratching the lens surface.
[0019] (3) The lens inspection and protection fixture proposed in this paper is a biconvex lens inspection and protection fixture for DUI inspection. Through the simple structural design and the use of damping cloth, biconvex lenses in the diameter range of 320mm-500mm can be inspected on DUI equipment. While fixing the lens body, it also protects the convex surface, preventing the lens body and the fixture from making hard contact and causing damage to the processed lens surface, reducing the stress caused by the lens's own weight, and making the inspection results more accurate. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of the lens inspection and protection fixture of this utility model;
[0021] Figure 2 This is a top view of the practical lens inspection and protection fixture;
[0022] Figure 3 This is a schematic diagram of the tooling positioning ring A of this utility model;
[0023] Figure 4 This is a schematic diagram of the tooling positioning ring B of this utility model;
[0024] Figure 5 This is a side view of the lens inspection and protection fixture of this utility model;
[0025] Figure 6 This is a schematic diagram of the tooling base of this utility model;
[0026] Figure 7 This is a schematic diagram of the lens inspection and protection fixture of this utility model with damping cloth added.
[0027] In the diagram: 1. Lens inspection and protection fixture; 2. Fixture base; 3. Fixture positioning ring A; 4. Fixture positioning ring B; 5. Damping cloth; 6. Limiting and lifting ring. Detailed Implementation
[0028] 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.
[0029] Please see Figures 1-7 This utility model provides a technical solution: a biconvex lens detection and protection fixture for DUI detection, including a lens detection and protection fixture 1, which includes a fixture base 2, a fixture positioning ring A3, and a fixture positioning ring B4.
[0030] The fixture base 2 is square, with a circular slot in the center that runs through it. The four outer corners of the fixture base 2 are rounded. A limiting support ring 6 is installed in the circular slot in the center of the fixture base 2. The limiting support ring 6 is an integral structure with the fixture base 2. The bottom of the limiting support ring 6 is at the same level as the bottom surface of the fixture base 2, and the upper surface of the limiting support ring 6 is lower than the upper surface of the fixture base 2. The width of the limiting support ring 6 is the same as the width of the fixture positioning ring A3 and the fixture positioning ring B4. The bottom of the fixture base 2 is a rectangle of 320x320mm, and the thickness of the fixture base 2 is 10mm.
[0031] Tooling positioning ring A3 and tooling positioning ring B4 are two identical semi-circular arc retaining rings. Tooling positioning ring A3 and tooling positioning ring B4 are spliced together to form a complete cylinder with an inner diameter of 280mm, an outer diameter of 300mm, and a height of 30mm.
[0032] The tooling positioning ring A3 and tooling positioning ring B4 are spliced together to form a cylindrical positioning ring. Six damping cloths are provided at equal angles on the upper surface of the positioning ring. The damping cloths are attached at six evenly distributed points to further improve flexibility and reduce scratches and indentations on the mirror surface caused by the weight of the tooling. At the same time, the friction is increased so that the lens can be more stable on the tooling and is less likely to slide or rotate.
[0033] The lens inspection and protection fixture 1 has insulating adhesive on all surfaces that come into contact with the lens. The insulating adhesive can effectively prevent the fixture from scratching the lens surface. The overall height of the lens inspection and protection fixture 1 is 30mm.
[0034] Lens inspection and protection fixture 1 is a general-purpose fixture with a diameter of 320mm-500mm, which needs to withstand the weight of the lens. The minimum diameter of the fixture is set to 300mm, and then extended to withstand more weight.
[0035] This invention presents a protective fixture for biconvex lenses used in DUI testing. Through its simple structural design and the use of damping cloth, it enables the testing of biconvex lenses with a diameter range of 320mm-500mm on DUI equipment. While fixing the lens body, it also protects the convex surface, preventing damage to the processed lens surface caused by hard contact between the lens body and the fixture. It also reduces the stress caused by the lens's own weight, resulting in more accurate test results.
[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A bi-convex lens detection protection tool for DUI detection, comprising a lens detection protection tool (1), characterized in that: The lens detection protection tool (1) comprises a tool base (2), a tool positioning ring A (3), and a tool positioning ring B (4). The tool base (2) is square, and a circular hole is arranged in the center of the tool base (2) and penetrates the tool base (2), wherein four outer corners of the tool base (2) are arc corners. The tool positioning ring A (3) and the tool positioning ring B (4) are two identical semicircular arc rings.
2. The lenticular lens detection protection tool for DUI detection according to claim 1, wherein: A limiting lifting ring (6) is arranged in the circular hole in the center of the tool base (2), and the limiting lifting ring (6) and the tool base (2) are an integral structure, wherein the bottom of the limiting lifting ring (6) is at the same horizontal height as the bottom surface of the tool base (2), the upper surface of the limiting lifting ring (6) is lower than the upper surface of the tool base (2), and the width of the limiting lifting ring (6) is the same as the width of the tool positioning ring A (3) and the tool positioning ring B (4). The bottom of the tool base (2) is a rectangle with a size of 320x320mm, and the thickness of the tool base (2) is 10mm.
3. The lenticular lens detection protection tool for DUI detection according to claim 1, wherein: The tool positioning ring A (3) and the tool positioning ring B (4) are spliced into a complete cylinder, wherein the inner diameter of the cylinder is 280mm, the outer diameter of the cylinder is 300mm, and the height of the cylinder is 30mm. The upper surface of the cylindrical positioning ring formed by splicing the tool positioning ring A (3) and the tool positioning ring B (4) is provided with six damping cloths at equal angles.
4. The lenticular lens detection protection tool for DUI detection according to claim 1, wherein: The surface of the lens detection protection tool (1) in contact with the lens is pasted with insulating glue.
5. The lenticular lens detection protection tool for DUI detection according to claim 1, wherein: The overall height of the lens detection protection tool (1) is 30mm.