Wear-resistant multi-point out-of-focus spectacle lens

Abstract

The utility model relates to the technical field of multi-point out-of-focus spectacle lenses, in particular to a wear-resistant multi-point out-of-focus spectacle lens which comprises a lens body, an open groove is formed in the edge of the lens body, and at least one limiting groove is formed in each of the two sides of the open groove. A pressing piece is arranged along the edge of the lens, at least one mounting groove is formed along the outer side of the pressing piece, an insertion block is vertically mounted along the middle of the inner side of the pressing piece and corresponds to the open groove, and limiting blocks are mounted on the two sides of the insertion block and correspond to the limiting grooves. Through the arrangement of the pressing sheets, friction between the lens frame and the lenses can be buffered, abrasion caused by frequent contact or extrusion is reduced, and the service life of the lenses is prolonged; through the elastic interference fit design of the pressing pieces, the inserting blocks and the limiting blocks, the lenses are fixed in the glasses frame more firmly, and the problem that the lenses are loosened or fall off due to daily wearing or glasses frame adjustment is effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of multi-point defocus eyeglass lens technology, and in particular to a wear-resistant multi-point defocus eyeglass lens. Background Technology

[0002] Defocus lenses are a type of eyeglass that uses special optical design to alter the position of light rays, thereby slowing down the growth of the eye axis and controlling the progression of myopia. The core principle is to use defocus signals in the peripheral area of ​​the lens to ensure that the image on the periphery of the retina falls in front of or directly opposite the retina, rather than behind the retina as in traditional single-vision lenses.

[0003] When installing defocus lenses, a limiting groove is cut along the edge of the lens to secure it to the frame. However, during use, wearers inevitably need to touch the glasses with their hands, such as bending the frame to better fit the head's contours and improve comfort. These actions cause wear and tear between the frame and the lens, potentially leading to the lens loosening or even falling off. To address this, we propose a wear-resistant multi-point defocus lens. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned shortcomings in the existing technology by proposing a wear-resistant multi-point defocus eyeglass lens.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a wear-resistant multi-point defocus spectacle lens, including a lens, a groove is provided along the edge of the lens, and at least one limiting groove is provided on both sides of the groove.

[0006] A pressure plate is provided along the edge of the lens, and at least one mounting groove is provided along the outer side of the pressure plate. An insert block is vertically installed along the middle of the inner side of the pressure plate, with the insert block corresponding to the groove. Limiting blocks are installed on both sides of the insert block, with the limiting blocks corresponding to the limiting groove.

[0007] Preferably, the lens is composed of two spectacle lenses combined together, and multiple spaced arc-shaped grooves are provided on the side of the two spectacle lenses that are relatively close to each other. The arc-shaped grooves on the two spectacle lenses correspond one to one and are arranged in a ring. A convex mirror is provided in the arc-shaped groove.

[0008] Preferably, both the compression plate and the insert are elastic rubber blocks.

[0009] Preferably, the side of the compressed tablet corresponds to the side of the lens.

[0010] Preferably, arc-shaped cut surfaces are provided on both sides of the outer wall of the tablet.

[0011] Preferably, the insert block and the slot are interference fit, and the limiting block and the limiting slot are interference fit.

[0012] Preferably, an opening is provided on the tablet press, and the opening passes through the insert block and the tablet press.

[0013] The design scheme proposed in this utility model has the following beneficial effects in application:

[0014] 1. This utility model, through the setting of the pressure plate, can buffer the friction between the frame and the lens, reduce wear caused by frequent contact or squeezing, and extend the service life of the lens.

[0015] 2. This utility model uses the elastic interference fit design of the pressure plate, the insert block and the limiting block to make the lens more securely fixed in the frame, effectively preventing the lens from loosening or falling off due to daily wear or frame adjustment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the lens structure of this utility model;

[0018] Figure 3 This is a cross-sectional view of the lens of this utility model;

[0019] Figure 4 This is a schematic diagram of the tablet compression structure of this utility model.

[0020] In the diagram: 1. Lens; 2. Arc groove; 3. Groove; 4. Limiting groove; 5. Pressing plate; 6. Insert block; 7. Limiting block; 8. Arc-shaped cut surface; 9. Mounting groove; 10. Opening. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Example

[0023] Reference Figures 1-4 A wear-resistant multi-point defocus spectacle lens, comprising lens 1, wherein, as Figure 2 and Figure 3 As shown, lens 1 is composed of two spectacle lenses combined together, and multiple spaced arc-shaped grooves 2 are provided on the side of the two spectacle lenses that are relatively close to each other. The arc-shaped grooves 2 on the two spectacle lenses correspond one to one and are arranged in a ring. A convex mirror is provided in the arc-shaped groove 2 to form a multi-point defocus spectacle lens.

[0024] like Figure 2As shown, a groove 3 is provided along the edge of the lens 1, and at least one limiting groove 4 is provided on both sides of the groove 3. In actual use, the limiting grooves 4 on both sides of the groove 3 can be staggered or symmetrically arranged.

[0025] like Figure 2 and Figure 4 As shown, a pressure plate 5 is provided along the edge of the lens 1, and an insert 6 is vertically installed along the middle of the inner side of the pressure plate 5. The insert 6 corresponds to the slot 3, and limit blocks 7 are installed on both sides of the insert 6. The limit blocks 7 correspond to the limit grooves 4. In use, the pressure plate 5 is taken out and the insert 6 is placed in the slot 3. Then, the insert 6 is pressed into the slot 3 by pressing. At this time, the limit blocks 7 will also be embedded in the limit grooves 4, so that the insert 6 is fixed in the slot 3, and the pressure plate 5 will be attached to the outer wall of the lens 1.

[0026] In order to facilitate the installation of the pressure plate 5 on the lens 1, an opening 10 is provided on the pressure plate 5. The opening 10 passes through the insert block 6 and the pressure plate 5, so that one end of the pressure plate 5 can be taken out and pressed onto the lens 1, and installed around the outer wall of the lens 1 until the other end of the pressure plate 5 is also installed on the lens 1.

[0027] Furthermore, both the pressing plate 5 and the insert block 6 are elastic rubber blocks. The insert block 6 and the slot 3 are interference-fitted, and the limiting block 7 and the limiting groove 4 are interference-fitted, thereby improving the stability of the pressing plate 5 fixed on the lens 1.

[0028] Specifically, at least one mounting groove 9 is provided along the outer side of the pressure plate 5. In use, the lens 1 can be placed into the frame from the port of the frame. In order to ensure the stability of the lens 1 in the frame, a mounting protrusion corresponding to the mounting groove 9 is provided on the inner wall of the frame. After the lens 1 is placed in the frame, the mounting protrusion can be embedded in the mounting groove 9, thereby limiting and stabilizing the lens 1 in the frame. Moreover, since the pressure plate 5 is an elastic rubber block, after the lens 1 is placed in the frame, the frame will squeeze the pressure plate 5, causing the pressure plate 5 to undergo elastic deformation and generate a reaction force acting on the frame, thereby further improving the stability of the lens 1 in the frame. As a connecting medium between the lens 1 and the frame, when the frame is bent or subjected to other operations, the friction generated by the frame displacement will act on the pressure plate 5, thereby reducing the wear of the frame on the lens 1 and improving the wear resistance of the lens 1.

[0029] Furthermore, to make pressing the lens 1 into the frame easier, arc-shaped cut surfaces 8 are provided on both sides of the outer wall of the pressure plate 5, with the side of the pressure plate 5 corresponding to the side of the lens 1.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A wear-resistant multi-point defocus spectacle lens, characterized in that: Includes a lens (1), a groove (3) is provided along the edge of the lens (1), and at least one limiting groove (4) is provided on both sides of the groove (3). A pressure plate (5) is provided along the edge of the lens (1). At least one mounting groove (9) is provided along the outer side of the pressure plate (5). An insert (6) is vertically installed along the middle of the inner side of the pressure plate (5). The insert (6) corresponds to the groove (3). Limiting blocks (7) are installed on both sides of the insert (6). The limiting blocks (7) correspond to the limiting groove (4).

2. The wear-resistant multi-point defocus spectacle lens according to claim 1, characterized in that: The lens (1) is composed of two eyeglass lenses combined together, and multiple arc-shaped grooves (2) are provided on the side of the two eyeglass lenses that are relatively close to each other. The arc-shaped grooves (2) on the two eyeglass lenses correspond one to one and are arranged in a ring. A convex mirror is provided in the arc-shaped groove (2).

3. The wear-resistant multi-point defocus spectacle lens according to claim 1, characterized in that: The compression plate (5) and the insert (6) are both elastic rubber blocks.

4. The wear-resistant multi-point defocus spectacle lens according to claim 1, characterized in that: The side of the compression tablet (5) corresponds to the side of the lens (1).

5. The wear-resistant multi-point defocus spectacle lens according to claim 2, characterized in that: Arc-shaped cut surfaces (8) are provided on both sides of the outer wall of the tablet (5).

6. The wear-resistant multi-point defocus spectacle lens according to claim 1, characterized in that: The insert (6) and the slot (3) are interference fit, and the limit block (7) and the limit slot (4) are interference fit.

7. The wear-resistant multi-point defocus spectacle lens according to claim 1, characterized in that: An opening (10) is provided on the tablet (5), and the opening (10) passes through the insert block (6) and the tablet (5).

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