CN220154751U - Lens with defocus effect - Google Patents

Abstract

The utility model provides a lens with a defocus effect, which comprises a first lens monomer and a second lens monomer which are compounded, wherein a central light transmission area is arranged at the central position of the first lens monomer and the second lens monomer, surrounding defocus areas are arranged at the periphery of the central light transmission area, the surrounding defocus areas are arranged on the outer side surface of the second lens monomer, the central light transmission area is in a regular hexagon shape, the surrounding defocus areas are in a ring shape, and a defocus surface can be formed in front of retina of a user through arranging the surrounding defocus areas, so that all optical focuses can fall on the retina, and the effect of preventing myopia deepening is achieved.

Description

Lens with defocus effect

Technical Field

The utility model relates to the field of lenses, in particular to a lens with a defocus effect.

Background

It is known that the rate of myopia of teenagers in China is high in the first world, wherein the rate of myopia of primary and middle school students and college students is over 70%, and myopia prevention and control are not slow. The existing simple and effective method is to wear glasses for correcting vision, namely myopia glasses, which are used for diverging and focusing light rays on retina. However, in teenagers, the eyeballs are in a development stage, and after the eyes are worn, the optical focal points of the peripheral parts of the lenses are located at the backward positions of the retina, so that the eye axis stretches, and the vision is seriously degraded.

Therefore, there is a need for a lens with defocus effect to achieve the effect of preventing myopia progression.

Disclosure of Invention

The utility model aims to provide a lens with a defocus effect, which solves the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a lens with a defocusing effect, which comprises a first lens monomer and a second lens monomer which are compounded, wherein a central light-transmitting area is arranged at the central position of the first lens monomer and the second lens monomer, surrounding defocusing areas are arranged around the central light-transmitting area, the surrounding defocusing areas are arranged on the outer side surface of the second lens monomer, the central light-transmitting area is in a regular hexagon shape, and the surrounding defocusing areas are in a ring shape.

Preferably, the first lens monomer is a lens with uniform thickness, the thickness of the first lens monomer is 0.5-1.2mm, and the second lens monomer is a lens with nonuniform thickness, and the center thickness of the second lens monomer is 0.5-1.2mm.

Preferably, the maximum distance between the outer edge of the central light-transmitting area and the inner edge of the surrounding defocused area is 10-15mm, and the minimum distance is 4-8mm.

Preferably, the peripheral defocus region comprises a plurality of concentrically arranged lens ring bodies, the lens ring bodies being polygonal.

Preferably, the diopter steps of adjacent lens ring bodies differ by 0.05-0.15D.

Preferably, the lens ring body comprises a plurality of micro lenses, and a plurality of micro lenses are encircled to form a polygon.

Preferably, the micro lens is circular, and the diameter of the circumscribed circle is 1.03mm.

Compared with the prior art, the utility model has the following beneficial effects:

the lens with the defocus effect comprises a first lens monomer and a second lens monomer which are compounded, wherein a central light transmission area is arranged at the central position of the first lens monomer and the second lens monomer, surrounding defocus areas are arranged around the central light transmission area and are arranged on the outer side face of the second lens monomer, the central light transmission area is in a regular hexagon shape, and the surrounding defocus areas are in a ring shape.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a cross-sectional view of a lens with defocus effect according to the present utility model;

fig. 2 is a plan view of a lens with defocus effect according to the present utility model.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "disposed" are to be construed broadly, and may be fixedly connected, disposed, or detachably connected, disposed, or integrally connected, disposed, for example. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1-2, the present utility model provides a technical solution: the utility model provides a lens with defocusing effect, including the first lens monomer 1 and the second lens monomer 2 of looks complex, wherein first lens monomer is the lens of thickness uniformity, its thickness is 1mm, the second lens monomer is the lens of thickness non-uniformity, center thickness is 1mm, the central position of first lens monomer 1 and second lens monomer 2 is equipped with central light-transmitting region 3, be equipped with around the light-transmitting region 3 and defocused region 4 around, around defocusing region 4 sets up in the lateral surface of second lens monomer 1, central light-transmitting region 3 is circular, around defocusing region 4 is annular, the maximum interval of the outer edge of central light-transmitting region 3 and the inward flange of surrounding defocusing region 4 is 10mm, minimum interval is 4mm, around defocusing region 4 includes a plurality of lens circle bodies 5 that set up concentrically, lens circle body 5 is regular hexagon, lens circle body 5 includes a plurality of micro lenses 6, a plurality of micro lenses 6 are unified into polygon, micro lenses 6 are circular, its circumscribed circle diameter is 1.03mm.

According to the lens with the defocus effect, the peripheral defocus region 4 is arranged, the peripheral defocus region 4 is formed by the plurality of lens ring bodies 5 which are arranged concentrically and are in a regular hexagon shape, the lens ring bodies are formed by the plurality of micro lenses 6, and the micro lenses 6 can form a defocus plane in front of retina of a user, so that all optical focuses can fall on the retina, and the myopia deepening prevention effect is achieved.

While the fundamental and principal features of the utility model and advantages of the utility model have been shown and described, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (4)

1. A lens having a defocus effect, characterized by: the lens comprises a first lens monomer and a second lens monomer which are combined, wherein a central light transmission area is arranged at the central position of the first lens monomer and the central position of the second lens monomer, a peripheral defocusing area is arranged around the central light transmission area, the peripheral defocusing area is arranged on the outer side surface of the second lens monomer, the central light transmission area is a regular hexagon, and the peripheral defocusing area is annular;

the surrounding defocusing area comprises a plurality of lens ring bodies which are concentrically arranged, and the lens ring bodies are polygonal;

diopter differences between adjacent lens ring bodies are 0.05-0.15D;

the lens ring body comprises a plurality of micro lenses, and the micro lenses are encircled to form a polygon.

2. The lens with defocus effect of claim 1 wherein: the first lens monomer is a lens with uniform thickness, the thickness of the first lens monomer is 0.5-1.2mm, and the second lens monomer is a lens with nonuniform thickness, and the center thickness of the second lens monomer is 0.5-1.2mm.

3. The lens with defocus effect of claim 1 wherein: the maximum distance between the outer edge of the central light-transmitting area and the inner edge of the peripheral defocusing area is 10-15mm, and the minimum distance is 4-8mm.

4. The lens with defocus effect of claim 1 wherein: the micro lens is round, and the diameter of the outer circle of the micro lens is 1.03mm.