Myopic lens suitable for assembling large-frame glasses

Abstract

The utility model relates to a myopic lens suitable for assembling large-frame glasses. The technical problem that an existing lens is too heavy is solved. Comprising a lens body, the lens body is provided with a central area, the circumferential outer side of the lens body is provided with an annular thinning area located on the circumferential periphery of the central area, the circumferential inner side of the thinning area and the circumferential outer side of the central area are in smooth transition connection through a transition area, and the circumferential outer side of the thinning area extends to the circumferential outer edge of the lens body. The outer surfaces of the central area and the thinned area adopt spherical or aspheric convex surface structures, the inner surface of the central area adopts a spherical concave surface structure, and the inner surface of the thinned area adopts a spherical convex surface structure with progressive curvature. The lens has the advantages that the thickness of the periphery of the lens can be effectively reduced through the lens body with partition design, so that the weight of the lens is reduced, and the user experience is improved. The inner surfaces of the transition area and the thinning area are respectively processed by adopting parabola fitting ring cutting and progressive curvature forms, so that the thicknesses of the transition area and the thinning area of the lens can be effectively reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of lenses, and in particular relates to a myopia lens suitable for assembling large-frame glasses. Background Art

[0002] Large-frame glasses have many benefits, such as strong fashion sense, more fashionable, can create a trendy look, and give people a relaxed and unique feeling; large-frame glasses not only have the function of protecting the eyes, but also can highlight the facial features of the wearer, enhance personal temperament, and help cover facial flaws, making the wearer look more beautiful. Large-frame glasses can also modify the face shape, especially for people with long or big faces, choosing the right frame can make the face look more three-dimensional; large-frame glasses can effectively weaken the observer's attention to the wearer's dark circles or eye bags, and become a "magic weapon" after staying up late. However, large-frame glasses also have some potential risks and disadvantages, such as their heavy weight may increase the burden on the bridge of the nose, the lenses may be thicker, affecting the appearance, and may cause vision problems or other health problems. Therefore, these factors should be taken into account when choosing suitable large-frame glasses. Especially for myopia correction glasses with a large refractive power, due to the large diameter of the lenses of large-frame glasses, the lens edges are significantly thickened, and the lens weight is large. Lens users wear a pair of bulging, thick and heavy glasses, which seriously affects the user's daily wearing experience. Summary of the invention

[0003] The purpose of the utility model is to provide a myopia lens suitable for assembling large-frame glasses in view of the above problems.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a myopia lens suitable for fitting large-frame glasses, comprising a lens body, the lens body having a central area, the circumferential outer side of the lens body having a thinning area located at the circumferential periphery of the central area and in an annular shape, the transition area between the circumferential inner side of the thinning area and the circumferential outer side of the central area is smoothly connected, and the circumferential outer side of the thinning area extends to the circumferential outer edge of the lens body, the outer surfaces of the central area and the thinning area adopt a spherical or aspherical convex structure, the inner surface of the central area adopts a spherical concave structure, and the inner surface of the thinning area adopts a spherical convex structure with a progressive curvature, the inner surface of the thinning area is processed in the form of a progressive curvature, which can reduce the weight of the lens body and improve the user experience.

[0005] In the above-mentioned myopia lens suitable for fitting large-frame glasses, the central area is circular and the center of the central area coincides with the center of the lens body.

[0006] In the above-mentioned myopia lens suitable for fitting large-frame glasses, the diameter of the central area is 35.0-50.0 mm, and the diopter of the central area is -2.00 to -12.00 D.

[0007] In the above-mentioned myopia lens suitable for fitting large-frame glasses, the thickness of the thinned area gradually decreases from the inner side to the outer side, which can effectively reduce the overall weight of the lens body.

[0008] In the above-mentioned myopia lens suitable for fitting large-frame glasses, the edge thickness of the thinned area on the circumferential outer side is 1.0-1.5 mm, which reduces the weight of the lens body and effectively improves the overall appearance of the lens.

[0009] In the above-mentioned myopia lens suitable for fitting large-frame glasses, the transition zone is an annular area radially outward by 10.0±0.1 mm from the edge of the lens body relative to the central zone, and a smooth transition between the central zone and the thinning zone can be achieved through the transition zone.

[0010] In the above-mentioned myopia lens suitable for fitting large-frame glasses, the outer surface curvature radius of the transition zone and the thinning zone is consistent with the outer surface curvature radius of the central zone, which can ensure the smoothness of the outer surface of the lens body.

[0011] In the above-mentioned myopia lens suitable for fitting large-frame glasses, the inner surface of the transition zone adopts a parabola to connect the central zone and the thinning zone along the radial direction, which can improve the connection smoothness between the central zone and the thinning zone.

[0012] In the above-mentioned myopia lens suitable for fitting large-frame glasses, the thickness of the transition zone from the circumferential inner side close to the central area to the circumferential outer side close to the thinning area gradually decreases, which can ensure the smoothness of the connection between the transition zone and the thinning zone, and can further reduce the weight of the lens body and improve the aesthetics of the lens.

[0013] In the above-mentioned myopia lens suitable for fitting large-frame glasses, the central area, transition area and thinning area are connected as an integrated structure, which can facilitate the processing of the lens body and improve the structural strength of the lens body.

[0014] Compared with the existing technology, the advantages of the utility model are:

[0015] 1. The partitioned design of the lens body can effectively reduce the thickness of the lens periphery, thereby reducing the weight of the lens and improving the user experience.

[0016] 2. The outer surfaces of the central area, transition area and thinning area adopt a spherical or aspherical convex structure with the same outer surface curvature, so as to ensure that the outer surface of the lens body remains smooth as a whole.

[0017] 3. The inner surfaces of the transition zone and the thinning zone are processed by parabola fitting circular cutting and progressive curvature respectively, which can effectively reduce the thickness of the transition zone and the thinning zone of the lens. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model.

[0019] Figure 2 It is a structural sectional view of the utility model.

[0020] In the figure: lens body 1, central area 11, thinning area 12, transition area 13, outer surface 2, inner surface 3. DETAILED DESCRIPTION

[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0022] Embodiment 1

[0023] like Figure 1 , Figure 2 As shown, a myopia lens suitable for fitting large-frame glasses includes a lens body 1, the lens body 1 has a central area 11, and the lens body 1 has a thinning area 12 on the circumferential outer side thereof, which is located on the circumferential periphery of the central area 11 and is in an annular shape. A transition area 13 between the circumferential inner side of the thinning area 12 and the circumferential outer side of the central area 11 is smoothly connected, and the circumferential outer side of the thinning area 12 extends to the circumferential outer edge of the lens body 1. The outer surfaces 2 of the central area 11 and the thinning area 12 adopt a spherical or aspherical convex structure, which can ensure the smoothness of the outer surface 2 of the lens body 1, the inner surface 3 of the central area 11 adopts a spherical concave structure, and the inner surface 3 of the thinning area 12 adopts a spherical convex structure with a progressive curvature. The inner surface 3 of the thinning area 12 is processed in the form of progressive curvature, which can reduce the weight of the lens body 1 and improve the user experience.

[0024] Specifically, the central area 11 is circular and the center of the central area 11 coincides with the center of the lens body 1 .

[0025] The diameter of the central area 11 is 35.0-50.0 mm, and the diopter of the central area 11 is -2.00 to -12.00 D.

[0026] like Figure 1 , Figure 2 As shown, the thickness of the thinned area 12 gradually decreases from the inner side to the outer side, which can effectively reduce the overall weight of the lens body 1.

[0027] Furthermore, the outer edge thickness of the thinned area 12 is 1.0-1.5 mm, which reduces the weight of the lens body 1 and effectively improves the overall appearance of the lens.

[0028] The transition zone 13 is an annular area radially outward by 10.0±0.1 mm from the edge of the lens body 1 relative to the central zone 11 , and a smooth transition between the central zone 11 and the thinning zone 12 can be achieved through the transition zone 13 .

[0029] Combination Figure 1 , Figure 2 As shown, the curvature radius of the outer surface 2 of the transition zone 13 and the thinning zone 12 is consistent with the curvature radius of the outer surface 2 of the central zone 11 , which can ensure the smoothness of the outer surface 2 of the lens body 1 .

[0030] The inner surface 3 of the transition zone 13 adopts a parabola to connect the central zone 11 and the thinning zone 12 in the radial direction, which can improve the connection smoothness between the central zone 11 and the thinning zone 12 .

[0031] Specifically, the thickness of the transition zone 13 from the circumferential inner side close to the central zone 11 to the circumferential outer side close to the thinning zone 12 gradually decreases, which can ensure the smoothness of the connection between the transition zone 13 and the thinning zone 12, and can further reduce the weight of the lens body 1 and improve the aesthetics of the lens.

[0032] Combination Figure 1 , Figure 2 As shown, the central area 11 , the transition area 13 and the thinning area 12 are connected as an integrated structure, which can facilitate the processing of the lens body 1 and improve the structural strength of the lens body 1 .

[0033] The principle of this embodiment is that when the refractive index of the lens body 1 is 1.61 and the diameter is 75mm, the central area 11 is a circular area with a diameter of 45.0mm, a diopter of -10.00D, an outer surface 2 is a spherical surface with a radius of curvature R of 135.3mm, and an inner surface 3 is a concave mirror design with a radius of curvature of 174.9mm. The width of the transition zone 13 is a ring-shaped area of ​​10.0mm, and the width of the thinning zone 12 is a ring-shaped area of ​​10mm, with an edge thickness of 1.2mm. The curvature radius of the outer surface 2 of the transition zone 13 and the thinning zone 12 is the same as that of the central area 11, and the inner surface 3 of the filtering zone 13 and the thinning zone 12 are processed in the form of parabola fitting annular cutting and progressive curvature respectively. After processing, the maximum thickness of the lens transition zone is 3.45mm.

[0034] Embodiment 2

[0035] The structure and working principle of this embodiment are basically the same as those of the first embodiment, except that when the refractive index of the lens body 1 is 1.56 and the diameter is 75 mm. The central area 11 is a circular area with a diameter of 40.0 mm and a diopter of -6.00D. The outer surface 2 is a spherical surface with a radius of curvature R of 82.1 mm, and the inner surface 3 is a concave mirror design with a radius of curvature of 103.7 mm. The transition zone 13 is an annular area with a width of 10.1 mm, and the thinning zone 12 is a ring-shaped area with a width of 14.8 mm and an edge thickness of 1.1 mm. The curvature radius of the outer surface 2 of the transition zone 13 and the thinning zone 12 is the same as that of the central area 11, and the inner surface 3 of the filtering zone 13 and the thinning zone 12 are processed in the form of parabola fitting annular cutting and progressive curvature, respectively. After processing, the maximum thickness of the lens transition zone is 2.86 mm.

[0036] Comparative Example 1

[0037] A large-frame myopia lens, single vision type, refractive index 1.56, diameter 75mm, diopter -6.00D, outer surface 2 is spherical, curvature radius R is 82.1mm, inner surface 3 is concave mirror design, curvature radius is 103.7mm. After processing, the edge thickness of the lens is 10.1mm.

[0038] It can be concluded from the above embodiments and comparative examples that the lens with the partition design of the utility model further reduces the peripheral thickness of the lens body 1 compared with the conventional spherical lens, so the overall weight of the lens is effectively reduced, ensuring wearing comfort.

[0039] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0040] Although the terms lens body 1, central area 11, thinning area 12, transition area 13, outer surface 2, inner surface 3, etc. are used more frequently in this article, the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A myopia lens suitable for fitting large-frame glasses, comprising a lens body (1), characterized in that: The lens body (1) has a central area (11), and the lens body (1) has a thinning area (12) on the circumferential outer side, which is located outside the central area (11) and is annular. The transition area (13) between the circumferential inner side of the thinning area (12) and the circumferential outer side of the central area (11) is smoothly connected, and the circumferential outer side of the thinning area (12) extends to the circumferential outer edge of the lens body (1). The outer surfaces (2) of the central area (11) and the thinning area (12) have spherical or aspherical convex structures, the inner surface (3) of the central area (11) has a spherical concave structure, and the inner surface (3) of the thinning area (12) has a spherical convex structure with a progressive curvature.

2. A myopia lens suitable for fitting large-frame glasses according to claim 1, characterized in that: The central area (11) is circular and the center of the central area (11) coincides with the center of the lens body (1).

3. A myopia lens suitable for fitting large-frame glasses according to claim 1, characterized in that: The diameter of the central area (11) is 35.0-50.0 mm, and the diopter of the central area (11) is -2.00 to -12.00 D.

4. A myopia lens suitable for fitting large-frame glasses according to claim 1, characterized in that: The thickness of the thinned area (12) gradually decreases from the inner side in the circumferential direction to the outer side in the circumferential direction.

5. The myopia lens suitable for fitting large-frame glasses according to claim 1, characterized in that: The thickness of the edge of the thinned area (12) on the circumferential outer side is 1.0-1.5 mm.

6. The myopia lens suitable for fitting large-frame glasses according to claim 1, characterized in that: The transition zone (13) is an annular area radially outward of 10.0±0.1 mm from the edge of the lens body (1) relative to the central zone (11).

7. The myopia lens suitable for fitting large-frame glasses according to claim 1, characterized in that: The curvature radius of the outer surface (2) of the transition zone (13) and the thinning zone (12) is consistent with the curvature radius of the outer surface (2) of the central zone (11).

8. The myopia lens suitable for fitting large-frame glasses according to claim 1, characterized in that: The inner surface (3) of the transition zone (13) adopts a parabola in the radial direction to connect the central zone (11) and the thinning zone (12).

9. The myopia lens suitable for fitting large-frame glasses according to claim 1, characterized in that: The thickness of the transition zone (13) gradually decreases from the circumferential inner side close to the central zone (11) to the circumferential outer side close to the thinning zone (12).

10. The myopia lens suitable for fitting large-frame glasses according to claim 1, characterized in that: The central area (11), transition area (13) and thinning area (12) are connected to form an integrated structure.

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