Black material gasket for optical lens
By designing structures such as placement grooves, limit grooves, and positioning rods in the optical lens, the force strength of the gasket is enhanced, and the problem of deformation of the gasket in the optical lens is solved, and the imaging quality and applicability are improved.
Patent Information
- Application Number
- CN202420472393.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-12
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2034-03-12
AI Technical Summary
The plastic gaskets in optical lenses are prone to deform after assembly, resulting in unstable air spacing and easily warping and deforming after being subjected to stress, affecting the imaging quality.
Design a new black material structure to enhance the force strength and stability of the gasket by setting placement grooves, limit grooves, jacks, positioning rods, extrusion springs, clamps and insertion blocks in the optical lens body to prevent Deformation.
It effectively prevents deformation after the gasket assembly, improves the imaging quality, MTF (blurity) and straightness of the lens, and is suitable for optical lenses of different diameters.
Smart Images
Figure CN222337384U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of optical lenses, and in particular relates to a black material gasket for an optical lens. Background Art
[0002] Optical lenses are essential components in machine vision systems, which directly affect the quality of imaging and the implementation and effect of algorithms. Optical lenses can be divided into short-focus lenses, medium-focus lenses, and long-focus lenses based on focal length; wide-angle, standard, and telephoto lenses based on field of view; and fixed-aperture fixed-focus lenses, manual-aperture fixed-focus lenses, automatic-aperture fixed-focus lenses, manual-variable-focus lenses, automatic-variable-focus lenses, automatic-aperture electric-variable-focus lenses, and electric three-variable lenses based on structure.
[0003] The utility model discloses a patent for a new black material structure shape. In the optical lens industry, the plastic gasket is deformed after the lens is assembled, resulting in unstable air gap, which has always been a common and difficult to overcome problem. Moreover, after the gasket is assembled, it is subjected to forces from top to bottom, causing the gasket to warp and deform in the middle. The inclined surface of the gasket is thin and is easily deformed after being subjected to forces. Therefore, in order to solve this problem, a new black material structure is designed to prevent the gasket from deforming after assembly. Utility Model Content
[0004] In view of the problems existing in the prior art, the utility model provides a black material gasket for an optical lens, which has the advantages of increasing the thickness of the gasket slope and increasing the force-bearing strength. It solves the problems that the existing gasket is subjected to force from top and bottom after assembly, causing the gasket to warp and deform in the middle, and the gasket slope is thin and easily deformed after being subjected to force.
[0005] The utility model is implemented as follows: a black material gasket for an optical lens, the black material gasket is built into an optical lens body through a mounting structure, the inner cavity of the optical lens body is provided with a placement groove for placing a gasket body, the top of the inner cavity of the optical lens body is provided with a limiting groove for limiting the gasket body, the bottom of the inner cavity of the placement groove is provided with a plug hole, the bottom of the inner cavity of the placement groove is provided with a gasket body, the top of the gasket body is provided with a lens body, the top of the gasket body is provided with four grooves, the semi-sectional shape of the gasket body is a rectangle, and the inclined surface of the rectangle is in contact with the lens body.
[0006] As a preferred embodiment of the present invention, the inner cavity of the groove is movably connected with a positioning rod, the positioning rod is L-shaped, and opposite sides of the four positioning rods all penetrate to the outside of the gasket body and extend to the inside of the limiting groove.
[0007] As a preferred embodiment of the present invention, one side opposite to the four positioning rods is fixedly connected to a compression spring, and one side opposite to the four compression springs is fixedly connected to the inner wall of the groove.
[0008] As a preferred embodiment of the utility model, a plurality of clamping blocks are arranged in an annular array on the top of the gasket body, and the clamping blocks are in a horizontal V-shape, and opposite sides of the plurality of clamping blocks are clamped with the lens body.
[0009] As a preferred embodiment of the utility model, a plurality of plug-in blocks are arranged in a circular shape at the bottom of the gasket body, and the surfaces of the plug-in blocks are movably connected to the inner cavity of the jack.
[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0011] 1. The utility model solves the problem that after the existing gasket is assembled, it is subjected to upper and lower forces, causing the gasket to warp and deform in the middle, and the gasket inclined surface is thin and easy to deform after being subjected to force, by arranging the optical lens body, the placement groove, the limit groove, the jack, the gasket body, the lens body and the groove for coordinated use.
[0012] 2. The utility model provides a positioning rod, which extends to the inside of the limiting groove, so as to position and clamp the gasket body, and is suitable for the inside of optical lens bodies of different calibers. By providing an extrusion spring, which is fixedly connected to the inner wall of the groove, the positioning rod is squeezed. By providing a clamping block, which is clamped with the lens body, it is convenient for the staff to clamp the lens body above the gasket body. By providing an inserting block, which is movably connected with the inner cavity of the plug hole, the gasket body is positioned. When the staff needs to install the lens body, the gasket body is first placed in the placement groove. At this time, multiple inserting blocks at the bottom of the gasket body will be inserted into the inside of the plug hole to limit the gasket body. After the gasket body is placed in the optical lens body, the gasket body is fixedly connected to the inner wall of the groove. When the lens body is inside, the four positioning rods will extend outwards through the compression of the compression springs. At this time, one end of the four positioning rods extending out of the gasket body will contact the inner wall of the optical lens body. After contact, the positioning rods will be squeezed toward the compression springs until the positioning rods move to the position of the limit grooves. Then the positioning rods will no longer contact the inner wall of the optical lens body, and the compression springs will drive the positioning rods to rebound so that one end of the positioning rods is inserted into the interior of the limit grooves, thereby positioning the gasket body. At the same time, the above method can also be used to install the gasket body and clamp it to the interior of optical lens bodies of different calibers. The inclined surface of the gasket body can prevent the gasket inside the lens from deforming poorly, thereby improving the MTF and straightness rate. The inclined surface of the gasket body can prevent the deformation of the black material after assembly, which causes poor MTF. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a structural schematic diagram provided by an embodiment of the utility model;
[0014] Figure 2 It is a schematic diagram of the internal structure of the optical lens body provided by an embodiment of the utility model;
[0015] Figure 3 It is a schematic diagram of the internal structure of the optical lens body provided by the embodiment of the utility model.
[0016] In the figure: 1. optical lens body; 2. placement slot; 3. limit slot; 4. plug hole; 6. lens body; 7. gasket body; 8. groove; 9. positioning rod; 10. extrusion spring; 11. clamp block; 12. plug block. DETAILED DESCRIPTION
[0017] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.
[0018] The structure of the utility model is described in detail below in conjunction with the accompanying drawings.
[0019] like Figures 1 to 3 As shown, an embodiment of the utility model provides a black material gasket for an optical lens, wherein the black material gasket is built into an optical lens body 1 through a mounting structure, a placement groove 2 for placing a gasket body 7 is provided in the inner cavity of the optical lens body 1, a limiting groove 3 for limiting the gasket body 7 is provided at the top of the inner cavity of the optical lens body 1, a plug hole 4 is provided at the bottom of the inner cavity of the placement groove 2, a gasket body 7 is provided at the bottom of the inner cavity of the placement groove 2, a lens body 6 is provided at the top of the gasket body 7, four grooves 8 are provided at the top of the gasket body 7, and the semi-sectional shape of the gasket body 7 is a rectangle, and the inclined surface of the rectangle is in contact with the lens body 6.
[0020] refer to Figure 2 and Figure 3 The inner cavity of the groove 8 is movably connected with a positioning rod 9, and the positioning rod 9 is L-shaped. The opposite sides of the four positioning rods 9 all penetrate the outside of the gasket body 7 and extend to the inside of the limiting groove 3. The opposite sides of the four positioning rods 9 are fixedly connected with extrusion springs 10, and the opposite sides of the four extrusion springs 10 are fixedly connected to the inner wall of the groove 8. The top of the gasket body 7 is provided with a plurality of card blocks 11 in an annular array, and the card blocks 11 are in a horizontal V-shape. The opposite sides of the plurality of card blocks 11 are clamped with the lens body 6, and the bottom of the gasket body 7 is provided with a plurality of plug blocks 12 in an annular array, and the surface of the plug blocks 12 is movably connected to the inner cavity of the jack 4.
[0021] The above scheme is adopted: by setting a positioning rod 9, the positioning rod 9 extends to the inside of the limiting groove 3, which plays a role in positioning and clamping the gasket body 7, and is suitable for the inside of optical lens bodies 1 of different calibers; by setting an extrusion spring 10, the extrusion spring 10 is fixedly connected to the inner wall of the groove 8, which plays a role in squeezing the positioning rod 9; by setting a clamping block 11, the clamping block 11 is clamped with the lens body 6, which plays a role in facilitating the staff to clamp the lens body above the gasket body 7; by setting an insert block 12, the insert block 12 is movably connected with the inner cavity of the socket 4, which plays a role in positioning the gasket body 7; when the staff needs to install the lens body 6, first place the gasket body 7 in the placement groove 2, at this time, multiple insert blocks 12 at the bottom of the gasket body 7 will be inserted into the inside of the socket 4 to limit the gasket body 7, and when the gasket body 7 is When placed into the interior of the optical lens body 1, the four positioning rods 9 will extend outward by the squeezing of the squeezing springs 10. At this time, one end of the four positioning rods 9 extending out of the gasket body 7 will contact the inner wall of the optical lens body 1. After contact, the positioning rod 9 will be squeezed toward the squeezing spring 10 until the positioning rod 9 moves to the position of the limiting groove 3. Then the positioning rod 9 will no longer contact the inner wall of the optical lens body 1, and the squeezing spring 10 will drive the positioning rod 9 to rebound, so that one end of the positioning rod 9 is inserted into the interior of the limiting groove 3, thereby positioning the gasket body 7. At the same time, the above method can also install the gasket body 7 and clamp it to the interior of optical lens bodies 1 of different calibers. The inclined surface of the gasket body 7 can prevent the deformation of the gasket inside the lens from being poor, and improve the MTF and straightness rate. The inclined surface of the gasket body 7 can prevent the deformation of the black material after assembly, which causes poor MTF.
[0022] The working principle of this utility model:
[0023] When in use, when the staff needs to install the lens body 6, first place the gasket body 7 inside the placement groove 2. At this time, the multiple plug blocks 12 at the bottom of the gasket body 7 will be inserted into the inside of the socket 4 to limit the gasket body 7. When the gasket body 7 is placed inside the optical lens body 1, the four positioning rods 9 will be extended outward by the compression of the compression spring 10. At this time, one end of the four positioning rods 9 extending out of the gasket body 7 will contact the inner wall of the optical lens body 1. After contact, the positioning rods 9 will be squeezed toward the compression spring 10 until the positioning rods 9 moves to the position of the limit groove 3, and then the positioning rod 9 will no longer contact the inner wall of the optical lens body 1, and the extrusion spring 10 will drive the positioning rod 9 to rebound, so that one end of the positioning rod 9 is inserted into the inside of the limit groove 3, thereby positioning the gasket body 7. At the same time, the above method can also install and clamp the gasket body 7 to the inside of optical lens bodies 1 with different apertures. The increase in the slope of the gasket body 7 can prevent the gasket inside the lens from deforming poorly, and improve the MTF and straightness rate. The increase in the slope of the gasket body 7 can prevent the deformation of the black material after assembly, which causes poor MTF.
[0024] To sum up: this new patent on the black material structure shape, by setting the optical lens body 1, the placement groove 2, the limit groove 3, the jack 4, the gasket body 7, the lens body 6 and the groove 8, solves the problem that after the existing gasket is assembled, it is subjected to upper and lower forces, causing the gasket to warp and deform in the middle, and the gasket inclined surface is thin and easy to deform after being subjected to force.
[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A black material gasket for an optical lens, the black material gasket being built into an optical lens body (1) through a mounting structure, characterized in that: The inner cavity of the optical lens body (1) is provided with a placement groove (2) for placing a gasket body (7); the top of the inner cavity of the optical lens body (1) is provided with a limiting groove (3) for limiting the gasket body (7); the bottom of the inner cavity of the placement groove (2) is provided with a plug hole (4); the bottom of the inner cavity of the placement groove (2) is provided with a gasket body (7); the top of the gasket body (7) is provided with a lens body (6); the top of the gasket body (7) is provided with four grooves (8); the gasket body (7) has a rectangular shape in a half-section view, and the inclined surface of the rectangle contacts the lens body (6).
2. A black material gasket for an optical lens as claimed in claim 1, characterized in that: The inner cavity of the groove (8) is movably connected to a positioning rod (9), and the positioning rod (9) is L-shaped. The opposite sides of the four positioning rods (9) all penetrate the outside of the gasket body (7) and extend to the inside of the limiting groove (3).
3. A black material gasket for an optical lens as claimed in claim 1, characterized in that: The opposite sides of the four positioning rods (9) are all fixedly connected with a pressing spring (10), and the opposite sides of the four pressing springs (10) are all fixedly connected with the inner wall of the groove (8).
4. A black material gasket for an optical lens as claimed in claim 1, characterized in that: A plurality of clamping blocks (11) are arranged in a circular array on the top of the gasket body (7); the clamping blocks (11) are in a horizontal V-shape; opposite sides of the plurality of clamping blocks (11) are clamped with the lens body (6).
5. The black material gasket for an optical lens as claimed in claim 1, characterized in that: The bottom of the gasket body (7) is provided with a plurality of insert blocks (12) in an annular arrangement, and the surface of the insert blocks (12) is movably connected to the inner cavity of the insertion hole (4).