CN219302796U

CN219302796U - Concentric ring string point myopia prevention deepening lens

Info

Publication number: CN219302796U
Application number: CN202222689455.1U
Authority: CN
Inventors: 毛华章
Original assignee: Jiangsu Hengmei Optical Glasses Co ltd
Current assignee: Jiangsu Hengmei Optical Glasses Co ltd
Priority date: 2022-10-12
Filing date: 2022-10-12
Publication date: 2023-07-04
Anticipated expiration: 2032-10-12

Abstract

The utility model discloses a concentric ring string point myopia prevention deepening lens which comprises a lens main body, wherein concentric rings are arranged outside the lens main body, the outer surface of the lens main body is positioned at the radius of an optical center by 5-8mm, and salient points are uniformly distributed on the concentric rings. The outer surface adopts concentric rings to combine with convex points to conduct forward guidance, adjusts the focus outside the optical center area of the lens, enables the lens to move forward in imaging, compensates the close-range adjustment hysteresis, ensures that near vision defocus is generated in the far and near directions, and therefore inhibits the growth of the eye axis and plays a role in preventing myopia from deepening.

Description

Concentric ring string point myopia prevention deepening lens

Technical Field

The utility model relates to the field of myopia glasses, in particular to a concentric ring string point myopia prevention deepening lens.

Background

Myopia problems affect up to twenty-five percent of the united states population, and some areas of the world, even up to seventy-five percent of the population, are suffering from myopia. Myopia refers to the elongation of the eye's shape such that light incident on the eye is focused in front of the retina. The traditional treatment for myopia is to wear corrective lenses. However, the general corrective lenses have no effect of preventing myopia progression.

Various methods for reducing myopia progression, especially for children, are known. Conventional methods include utilizing multifocal lenses, aberration-introducing or controlling lenses, off-axis power lenses, corneal reshaping, ocular movement, drug therapy, and the like.

However, the use of multifocal lenses or lenses with aberrations has proven to be disadvantageous, as it reduces the distance vision of the wearer. Other methods have disadvantages including discomfort caused by corneal remodelling and side effects caused by drug therapy. Therefore, the application designs the lens which can ensure the clear long-distance vision and also consider the short-distance vision and can prevent myopia from deepening.

Disclosure of Invention

The utility model aims to solve the problems of the prior art, and provides an improvement scheme or an alternative scheme, in particular to a lens which can ensure clear distance vision, give consideration to near vision and prevent myopia from deepening.

In order to solve the problems, the utility model adopts the following scheme: the concentric ring string point myopia prevention deepening lens comprises a lens main body and is characterized in that concentric rings are arranged outside the outer surface of the lens main body, which is 5-8mm in radius of the optical center, and salient points are uniformly distributed on the concentric rings.

Further, the concentric ring string point myopia prevention deepening lens is characterized in that the ring spacing of the concentric rings is 0.5mm, the bump diameter is 1.4mm, and the adjacent bump spacing on the same concentric ring is 1.4mm.

Further, the concentric ring string point myopia prevention deepening lens is characterized in that the concentric ring is an arc lens protruding outwards and has positive power of +300 to +500D; the convex points are convex lenses with positive degrees ranging from +300 to +500D.

Further, the concentric ring string point myopia prevention deepening lens is characterized in that the concentric rings are evenly distributed outside the optical center with the radius of 8mm, the ring spacing is 0.5mm, and the width of each concentric ring is 1mm.

Further, the concentric ring string point myopia prevention deepening lens is characterized in that the defocus amount of the concentric ring is the same as the defocus amount of the salient points.

Further, the concentric ring string point myopia prevention deepening lens is characterized in that the concentric rings are arc lenses protruding outwards, the ring distance is 0.5mm, the defocus amount of the innermost concentric ring is +300D, and the concentric rings are sequentially increased by +25D from inside to outside.

The utility model has the following technical effects: the concentric ring serial point anti-myopia deepening lens has the advantages that the optical center area of the concentric ring serial point anti-myopia deepening lens is kept unchanged and used for far-distance head-up, a plurality of concentric rings are arranged on the periphery of the optical center area, the concentric rings have positive defocus of +350- +500D, the angle of light entering the eyeball in the area is changed to enable the focus of the concentric rings to move forward, and as the imaging distance of the non-optical center area of the existing lens is larger than that of the optical center area, the imaging quality of the non-optical center area is poor than that of the optical center area, the retina is increased in the width of an eye axis for receiving imaging of the non-optical center area, especially when a person looks close to an object, the person usually rotates the eyeball instead of a low head, and the glasses are motionless, so that imaging of the non-optical center area is received, and myopia deepening is caused by the problems existing lens. Therefore, the concentric ring structure is arranged outside the optical center area of the concentric ring serial point myopia-preventing deepening lens to compensate defocus, so that imaging of the non-optical center area moves forward, and then when a near vision object is seen, the imaging of the non-optical center area can fall on retina without increasing the width of an eye axis, and the purpose of preventing myopia deepening is achieved. The concentric rings are provided with a plurality of salient points, so that the defocus compensation area of the non-optical center region can be effectively increased.

Drawings

FIG. 1 is a schematic view of a concentric ring string point anti-myopia deepening lens structure.

FIG. 2 is a comparative schematic diagram of defocus compensation.

Wherein 1 is the lens body, 2 is concentric ring, 3 is bump, 4 is focal length after concentric ring defocus compensation, 5 is focal length of optical center area, 6 is focal length without concentric ring defocus compensation.

Detailed Description

The utility model is described in further detail below with reference to the accompanying drawings.

Example 1: the concentric ring string point myopia prevention deepening lens comprises a lens main body, wherein concentric rings are arranged outside the outer surface of the lens main body, which is positioned outside the optical center with the radius of 8mm, and salient points are uniformly distributed on the concentric rings; the ring spacing of the concentric rings is 0.5mm, the diameters of the convex points are 1.4mm, and the spacing between adjacent convex points on the same concentric ring is 1.4mm; the concentric rings are arc lenses protruding outwards and have positive power of +300D; the convex point is a convex lens with positive degree of +300D.

Example 2: the concentric ring string point myopia prevention deepening lens comprises a lens main body, wherein concentric rings are arranged outside the outer surface of the lens main body, which is positioned outside the optical center with the radius of 8mm, and salient points are uniformly distributed on the concentric rings; the concentric rings are arc lenses protruding outwards, the ring spacing is 0.5mm, the defocus amount of the innermost concentric ring is 300D, and the defocus amount of the concentric rings sequentially increases by +25D from inside to outside.

Claims

1. The concentric ring string point myopia prevention deepening lens comprises a lens main body and is characterized in that concentric rings are arranged outside the outer surface of the lens main body, which is 5-8mm in radius of the optical center, and salient points are uniformly distributed on the concentric rings.

2. The concentric ring spot anti-myopia deepening lens according to claim 1, wherein the concentric rings have a ring pitch of 0.5mm, a bump diameter of 1.4mm, and adjacent bumps on the same concentric ring have a pitch of 1.4mm.

3. The concentric ring serial point myopia prevention deepening lens according to claim 1, wherein the concentric rings are arc lenses protruding outwards and have positive power +300- +500D; the convex points are convex lenses with positive degrees ranging from +300 to +500D.

4. The concentric ring string point anti-myopia deepening lens according to claim 1, wherein the concentric rings are uniformly distributed outside the optical center radius of 8mm, the ring spacing is 0.5mm, and the width of each concentric ring is 1mm.

5. The concentric ring string point myopia prevention deepening lens according to claim 1, wherein the concentric rings are arc lenses protruding outwards, the ring spacing is 0.5mm, the defocus amount of the innermost concentric ring is +300d, and the concentric rings sequentially increase by +25d from inside to outside.