Lens coating tool
By designing coating disks and limit ring structures that are adapted to different lens specifications, the gap problem caused by inconsistent through-hole sizes of lenses and coating umbrellas is solved, and the pass rate of lens coating is improved.
Patent Information
- Application Number
- CN202421803928.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-29
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-07-29
AI Technical Summary
In the existing lens coating technology, the through-hole sizes of the lens and the coating umbrella are inconsistent, resulting in the generation of gaps. The evaporated film layer material passes through the gaps and contaminates the rear surface of the lens, reducing the coating effect and improving the defect rate.
A lens coating tool is designed, using a coating disk and limit ring structure, and the limit ring is used to adapt to lenses of different sizes by replacing limit rings of different inner hole sizes, eliminating the gap between the lens and through holes.
The adaptation and fixation of multiple lens specifications is achieved, gaps are eliminated, and the film layer material is prevented from contaminating the rear surface of the lens, which improves the pass rate of coating.
Smart Images
Figure CN222961523U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of lens coating, and particularly relates to a lens coating tool. Background Art
[0002] At present, a coating umbrella is used as a tool for carrying and fixing lenses in lens coating. The lens is fixed on the holes of the coating umbrella and placed in a vacuum environment. The film layer material is bombarded by a high-voltage electron gun at a fixed point to evaporate and adhere to the surface to achieve the effect of surface coating. However, the size of the lens does not always match the size of the through holes of the coating umbrella. Therefore, a gap will be generated between the lens and the through holes. The evaporated film layer material will pass through the gap and contaminate the back surface of the lens that is not coated, resulting in a decline in the coating effect and an increase in the defective rate. Summary of the Utility Model
[0003] The purpose of the utility model is to provide a lens coating tool, which can overcome the above defects, adapt to a variety of lens specifications and fix them, avoid the generation of gaps in the holes of the coating umbrella, and improve the coating qualification rate.
[0004] To achieve the above purpose, the solution of the utility model is as follows:
[0005] A lens coating tool includes a coating disk. Through holes are formed in the coating disk, and a limiting ring is embedded in the through holes. The limiting ring has an inner hole for the lens to be embedded. Limiting rings with different inner hole sizes are provided for different sizes of lenses. By replacing the limiting rings with different inner hole sizes in the through holes, lenses of different sizes can be installed on the coating disk through the limiting rings.
[0006] Furthermore, there are multiple through holes on the coating disk, and a limiting ring is embedded in each through hole.
[0007] Furthermore, a first stop edge protrudes inward from the bottom of the side wall of the inner hole towards the center of the inner hole, so that when the lens is embedded in the inner hole, the lens is placed on the upper surface of the first stop edge.
[0008] Furthermore, a second stop edge protrudes away from the limiting ring at the top of the outer side wall of the limiting ring, so that when the limiting ring is embedded in the through hole, the lower surface of the second stop edge abuts against the coating disk around the through hole.
[0009] Furthermore, the through hole is circular with a diameter of 90 mm.
[0010] After adopting the above scheme, the beneficial effects of the utility model are as follows:
[0011] In the present utility model, lenses of different sizes are embedded into limiting rings with different inner hole sizes. By embedding the limiting rings into the through holes of the coating disk, the coating disk is adapted to various lens specifications and fixed, and the gap between the lens and the through hole is eliminated, preventing the evaporated film layer material from passing through the gap and contaminating the back surface of the lens that is not coated, thereby improving the qualification rate of coating. Description of the Drawings
[0012] Figure 1 is the schematic diagram of the overall structure of the present utility model;
[0013] Figure 2 is the schematic diagram of the structure of the limiting ring of the present utility model;
[0014] Figure 3 is the cross-sectional schematic diagram of the limiting ring of the present utility model.
[0015] Reference numeral description: 10, coating disk; 11, through hole; 20, limiting ring; 21, inner hole; 22, first flange; 23, second flange; 30, lens. Detailed Embodiment
[0016] The following will make a detailed description of the present utility model in conjunction with the drawings and specific embodiments.
[0017] As Figures 1 to 3 shown, the present utility model provides a lens 30 coating tool, including a coating disk 10. A through hole 11 is formed on the coating disk 10. A limiting ring 20 is embedded in the through hole 11. The limiting ring 20 has an inner hole 21 for the lens 30 to be embedded. A plurality of limiting rings 20 with different inner hole 21 sizes are provided corresponding to lenses of different sizes. By replacing the limiting rings 20 with different inner hole 21 sizes in the through hole 11, lenses 30 of different sizes are installed on the coating disk 10 through the limiting rings 20; preferably, the coating disk 10 is in an umbrella shape; specifically, the limiting ring 20 is made of a rigid material, such as hard PVC material, etc.; preferably, the through hole 11 is circular with a diameter of 90 mm, and the corresponding limiting ring 20 is also circular; preferably, the lens is circular, and the inner hole 21 is also circular. A plurality of limiting rings 20 with different inner hole 21 diameters are provided corresponding to lenses of different diameters.
[0018] Specifically, in the present utility model, lenses 30 of different sizes are embedded into limiting rings 20 with different inner hole 21 sizes. By embedding the limiting rings 20 into the through holes 11 of the coating disk 10, the coating disk 10 is adapted to various lens 30 specifications and fixed, and the gap between the lens 30 and the through hole 11 is eliminated, preventing the evaporated film layer material from passing through the gap and contaminating the back surface of the lens 30 that is not coated, thereby improving the qualification rate of lens 30 coating.
[0019] Preferably, the coating disk 10 is provided with a plurality of the through holes 11, and a limiting ring 20 is embedded in each through hole 11, so as to coat a plurality of lenses 30 at one time, improve production efficiency and save working time.
[0020] Furthermore, a first stop edge 22 is formed by protruding inwards towards the center of the inner hole 21 at the bottom of the side wall of the inner hole 21, so that when the lens 30 is embedded in the inner hole 21, the lens 30 is placed on the upper surface of the first stop edge 22 to prevent the lens 30 from falling off from the lower end of the inner hole 21.
[0021] Furthermore, a second stop edge 23 is formed by protruding away from the limiting ring 20 at the top of the outer side wall of the limiting ring 20, so that when the limiting ring 20 is embedded in the through hole 11, the lower surface of the second stop edge 23 abuts against the coating disk 10 around the through hole 11 to prevent the limiting ring 20 from falling off from the lower end of the through hole 11.
[0022] Furthermore, the diameter of the inner hole 21 of the limiting ring 20 is, for example, 70mm, 73mm, 75mm, 77mm, 78mm, etc., which can be determined according to the actual needs of the user and are not limited herein, for the lens 30 with different diameter specifications to be embedded; specifically, the diameters of the inner holes 21 of the limiting rings 20 embedded in each through hole 11 can be different from each other, or some can be the same, or all can be the same, depending on the actual needs of the user and are not limited herein.
[0023] To further illustrate the embodiments, the present invention provides drawings. These drawings are a part of the disclosure of the present invention, which are mainly used to illustrate the embodiments and can be used to explain the operating principle of the embodiments in conjunction with the relevant descriptions in the specification. With reference to these contents, those of ordinary skill in the art should be able to understand other possible implementation manners and the advantages of the present invention. The components in the drawings are not drawn to scale, and similar component symbols are usually used to represent similar components.
[0024] Meanwhile, the front, rear, left, right and other orientations involved in this embodiment are only for reference of an orientation and do not represent the orientation in actual use. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0025] The above are only the preferred embodiments of the present utility model and do not limit the design of this case. All equivalent changes made according to the key design of this case fall within the protection scope of this case.
Claims
1. A lens coating tool, characterized in that: It includes a coating plate, which has a through hole, in which a limiting ring is embedded, and the limiting ring has an inner hole for the lens to be embedded. Corresponding to lenses of different sizes, a plurality of limiting rings with different inner hole sizes are provided. By replacing the limiting rings with different inner hole sizes, lenses of different sizes can be installed on the coating plate through the limiting rings.
2. A lens coating tool as claimed in claim 1, characterized in that: The coating disk is provided with a plurality of through holes, and a limiting ring is embedded in each through hole.
3. The lens coating tool as claimed in claim 1, characterized in that: A first stop edge is formed at the bottom of the side wall of the inner hole and extends toward the center of the inner hole so that when the lens is embedded in the inner hole, the lens is placed on the upper surface of the first stop edge.
4. The lens coating tool as claimed in claim 1, characterized in that: A second retaining edge is formed on the top of the outer side wall of the limiting ring and extends away from the limiting ring so that when the limiting ring is embedded in the through hole, the lower surface of the second retaining edge abuts against the coating disk around the through hole.
5. The lens coating tool as claimed in claim 1, characterized in that: The through hole is circular and has a diameter of 90 mm.