CN219039509U

CN219039509U - Defocus myopia prevention and control lens

Info

Publication number: CN219039509U
Application number: CN202223515803.XU
Authority: CN
Inventors: 郭耀钟; 刘建中
Original assignee: Jiangsu Xinshike Optoelectronics Technology Co ltd
Current assignee: Jiangsu Xinshike Optoelectronics Technology Co ltd
Priority date: 2022-12-28
Filing date: 2022-12-28
Publication date: 2023-05-16
Anticipated expiration: 2032-12-28

Abstract

The utility model relates to the technical field of special lenses, in particular to a defocused myopia prevention and control lens which comprises a lens main body, wherein an ultraviolet-proof anti-aging layer is arranged on the lens main body, an upper end face anti-falling ring and a lower end face anti-falling ring are arranged on the side wall of the lens main body, and an upper end face hydrophobic film layer and a lower end face hydrophobic film layer are arranged on the lens main body. Through the upper end face prevent falling the ring and prevent falling the ring structure with lower terminal surface at the upper and lower marginal lateral wall corner symmetry of lens main part, avoided defocusing myopia prevention and control lens slightly carelessly fall at subaerial cracked phenomenon in lens main part edge that causes in the assembly process, improved defocusing myopia prevention and control lens in-process's edge prevent falling garrulous nature, avoid appearing the fog phenomenon at chilly winter lens main part surface, improved defocusing myopia prevention and control lens's whole surface antifog nature, through set up anti-ultraviolet ageing resistance layer structure in the lens main part, improved defocusing myopia prevention and control lens's anti ultraviolet ageing resistance.

Description

Defocus myopia prevention and control lens

Technical Field

The utility model relates to the technical field of special lenses, in particular to a defocused myopia prevention and control lens.

Background

Myopia is a blurred vision caused by the fact that the eye focuses the image of a distant object in front of the retina due to too long an axial length of the eyeball or too much curvature of the cornea. The traditional method of correcting myopia is by wearing spherical lenses, i.e. monofocal lenses. Although the spherical lens can present an image in the fovea of the retina, the imaging of the periphery of the retina can fall behind the retina, causing hyperopic defocus, further forcing the elongation of the ocular axis, deepening the progression of myopia.

At present, two types of myopia prevention and control lenses, an anti-fatigue lens and a progressive addition lens are appeared on the market. The anti-fatigue lens is characterized in that a prescribed power is arranged at a position 3mm above the focal point of the optical center of the lens, the luminosity of the lens is reduced by about 50 to 75 degrees from one half of the focal point of the optical center to the lower side, peripheral hyperopic defocus cannot be generated due to the increase of the power of the lens, and the prism effect generated due to the edge thickness cannot be counteracted. The progressive multi-focus lens is an asymmetric design concept, a channel is vertically arranged at the center of the lens, a vision area with constant degrees is arranged at the other end of the channel, an astigmatic area is arranged at two sides of the channel by adopting a folding design principle, the vision is narrow, the optical nerve fatigue is easy to generate, a vision blind area exists, and the progressive multi-focus lens is difficult to adapt.

At present, a plurality of lenses for preventing and controlling myopia exist at home and abroad, and some of the lenses are widely applied to life, but the existing methods have certain defects. Therefore, research into a lens design method that can place imaging in the fovea of the retina and create myopia defocus in the peripheral vision of the retina to prevent and retard myopia is a primary problem that needs to be solved in the design process.

In order to solve the problems, a defocus myopia prevention and control lens is disclosed in the prior art.

For example, chinese patent publication No. CN112578578A discloses a defocus-surface myopia prevention and control lens comprising a lens body having a refractive index surface, the lens body having a centrally located optical center; the optical system comprises a lens body, a horizontal meridian and a vertical meridian which are arranged on the lens body, wherein the horizontal meridian and the vertical meridian are intersected at an optical center, and the luminosity distribution of the horizontal meridian and the vertical meridian is different, the lens body is provided with a central vision zone and a peripheral defocusing vision zone, the central vision zone is an asymmetric optical fixed focus zone, and the peripheral defocusing vision zone comprises an upper defocusing zone and a lower defocusing zone which are divided by the horizontal meridian; the upper defocusing areas are symmetrically distributed about the vertical meridian, and the lower defocusing areas are asymmetrically distributed about the vertical meridian, wherein the defocusing variation of the upper defocusing areas is smaller than that of the lower defocusing areas; the defocus variation of the left side and the right side of the lower defocus region is different, wherein the luminosity of the horizontal meridian is that of the lower defocus region; the light intensity of the vertical meridian is gradually increased from the central vision zone to the peripheral defocused vision zone, wherein the upper defocused zone is divided into a left side and a right side by the vertical meridian, the left side and the right side are symmetrical, the light intensity is gradually increased from inside to outside, the lower defocused zone is divided into a left side and a right side by the vertical meridian, the left side and the right side are asymmetrical, the light intensity changes on the left side and the right side are different, the change trend of the side light intensity near temporal is inward, and the change trend of the side light intensity near nose is outward.

According to the defocus myopia prevention and control lens, imaging is carried out on the fovea of the retina and myopia defocus is formed on peripheral vision of the retina through the central vision area and the peripheral defocus vision area which are arranged on the lens body, so that myopia is prevented and delayed.

As can be seen from the solutions disclosed in the above prior patent documents, the prior defocus myopia prevention and control lens needs to be mounted on a lens frame after being manufactured into a finished product, and in the process, the lens body may fall down to the ground without attention, and the edge of the lens body is thinner and easily broken, so that the edge breakage resistance in the process of assembling the defocus myopia prevention and control lens is reduced;

in addition, in the use process of the lens main body in cold winter, fog is easy to be generated on the whole surface of the lens main body, so that the anti-fog property of the whole surface of the defocused myopia prevention and control lens is reduced;

in addition, when the anti-ultraviolet anti-aging glasses lens is used outdoors in hot summer, the anti-ultraviolet anti-aging performance of the anti-myopia lens is lower.

The above problems are in urgent need for improvement.

Disclosure of Invention

The utility model aims to provide an out-of-focus myopia prevention and control lens, which solves the problems of lower edge shatter resistance, lower overall surface fog resistance and lower ultraviolet resistance and ageing resistance of the out-of-focus myopia prevention and control lens in the assembly process of the out-of-focus myopia prevention and control lens in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a defocus myopia prevention and control lens, includes the lens main part, be equipped with anti-ultraviolet ageing resistance layer in the lens main part, the lateral wall of lens main part is equipped with up end and prevents falling the ring and prevent falling the ring with lower terminal surface, be equipped with up end hydrophobic membrane layer and lower terminal surface hydrophobic membrane layer in the lens main part.

Preferably, the thickness of the ultraviolet-proof anti-aging layer is one hundred nanometers to two hundred nanometers, so that the ultraviolet-proof anti-aging performance of the defocus myopia prevention and control lens is improved.

Preferably, the upper end face anti-falling ring is arranged at the corner of the side wall of the upper end face of the lens main body, and the lower end face anti-falling ring is arranged at the corner of the side wall of the lower end face of the lens main body, so that the edge anti-falling property in the assembly process of the defocused myopia prevention and control lens is improved.

Preferably, the cross section of the upper end face anti-falling ring and the lower end face anti-falling ring is of an arc-shaped structure, the inner arc radius is one millimeter, and the upper end face anti-falling ring and the lower end face anti-falling ring are integrally made of high-quality resin materials, so that the anti-falling ring is high in strength, collision-resistant and wear-resistant.

Preferably, the upper end face anti-falling ring and the lower end face anti-falling ring are higher than the surface of the lens main body, when the lens main body falls down on the ground, the upper end face anti-falling ring and the lower end face anti-falling ring are in contact with the ground at the first time, and the fragmentation condition of the lens main body is avoided.

Preferably, the upper end surface hydrophobic membrane layer is arranged on the upper end surface of the lens main body, and the lower end surface hydrophobic membrane layer is arranged on the lower end surface of the lens main body, so that the phenomenon of fogging on the surface of the lens main body is avoided.

Preferably, the upper end surface hydrophobic film layer and the lower end surface hydrophobic film layer are silicon fluorine coating film structure layers, have excellent hydrophobicity, and avoid fog on the surface of the lens main body.

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

1. according to the utility model, the upper end face anti-falling ring and the lower end face anti-falling ring are symmetrically arranged at the corners of the side walls of the upper edge and the lower edge of the lens main body, so that the phenomenon that the edge of the lens main body is broken due to the fact that the defocus myopia prevention and control lens is slightly careless to fall on the ground in the assembly process is avoided, and the edge anti-falling property of the defocus myopia prevention and control lens in the assembly process is improved.

2. According to the utility model, the upper end surface hydrophobic film layer and the lower end surface hydrophobic film layer are respectively arranged on the upper end surface and the lower end surface of the lens main body, so that the phenomenon of fogging on the surface of the lens main body in cold winter is avoided, and the overall surface antifogging property of the defocused myopia prevention and control lens is improved.

3. According to the utility model, the ultraviolet-proof anti-aging layer structure is arranged in the lens main body, so that the ultraviolet-proof anti-aging performance of the defocus myopia prevention and control lens is improved.

Drawings

FIG. 1 is a first perspective view of the overall structure of the present utility model, taken from the inside;

FIG. 2 is a schematic top view of the overall structure of the present utility model;

FIG. 3 is a cross-sectional view B-B of FIG. 2 in accordance with the present utility model;

fig. 4 is a second perspective view of the overall structure of the present utility model.

In the figure: 1 lens main part, 2 prevent ultraviolet ageing resistance layer, 3 up end hydrophobic membrane layer, 4 up end prevent falling the ring, 5 lower terminal surface prevent falling the ring, 6 lower terminal surface hydrophobic membrane layer.

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. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

Referring to fig. 1 to 4, an out-of-focus myopia prevention and control lens in the drawings includes a lens body 1, an anti-ultraviolet anti-aging layer 2 is provided on the lens body 1, an upper end face anti-falling ring 4 and a lower end face anti-falling ring 5 are provided on a side wall of the lens body 1, an upper end face hydrophobic film layer 3 and a lower end face hydrophobic film layer 6 are provided on the lens body 1, and the related structures described in the patent claims are component structures of the out-of-focus myopia prevention and control lens, which have been described in the background art and are the prior art.

The thickness of the ultraviolet-proof anti-aging layer 2 is one hundred nanometers to two hundred nanometers, so that the ultraviolet-proof anti-aging performance of the defocused myopia-proof control lens is improved.

The upper end face anti-falling ring 4 is arranged at the corner of the side wall of the upper end face of the lens body 1, and the lower end face anti-falling ring 5 is arranged at the corner of the side wall of the lower end face of the lens body 1, so that the edge anti-falling property in the assembly process of the defocused myopia prevention and control lens is improved.

The cross sections of the upper end face anti-falling ring 4 and the lower end face anti-falling ring 5 are arc-shaped structures, the radius of the inner arc is one millimeter, and the arc-shaped structures avoid the situation of skin abrasion of operators in the assembly process.

The upper end face anti-falling ring 4 and the lower end face anti-falling ring 5 are integrally made of high-quality resin materials, and are high in strength, collision-resistant and wear-resistant.

The upper end face anti-falling ring 4 and the lower end face anti-falling ring 5 are higher than the surface of the lens main body 1, when the lens main body 1 falls down on the ground, the upper end face anti-falling ring 4 and the lower end face anti-falling ring 5 are in contact with the ground at the first time, and the fragmentation condition of the lens main body 1 is avoided.

The upper end surface hydrophobic membrane layer 3 is arranged on the upper end surface of the lens main body 1, and the lower end surface hydrophobic membrane layer 6 is arranged on the lower end surface of the lens main body 1, so that the phenomenon of fog generation on the surface of the lens main body 1 is avoided.

The upper end surface hydrophobic membrane layer 3 and the lower end surface hydrophobic membrane layer 6 are silicon fluorine coating film structural layers, have excellent hydrophobicity, prevent fog from being generated on the surface of the lens main body 1, and greatly improve the use effect of the lens main body 1.

When used in this embodiment: after the lens main body 1 is produced into a finished product, the lens main body 1 needs to be installed on a lens frame, in the process, the lens main body 1 possibly falls down on the ground without attention, and the upper end face anti-falling ring 4 and the lower end face anti-falling ring 5 are symmetrically arranged at the corners of the side walls of the upper edge and the lower edge of the lens main body 1, so that the strength of the side walls of the upper edge and the lower edge of the lens main body 1 is improved, the phenomenon that the edge of the lens main body 1 is broken due to the fact that the lens main body 1 falls down on the ground without attention in the assembly process is avoided, and the edge breakage resistance in the assembly process of the lens is improved.

In addition, in cold winter, through setting up terminal surface hydrophobic membrane layer 3 and lower terminal surface hydrophobic membrane layer 6 structures respectively at the upper and lower terminal surface of lens main part 1, avoid lens main part 1 surface to appear the fog phenomenon, improved the whole surface antifogging nature of defocusing myopia prevention and control lens.

In addition, through setting up the anti-ultraviolet ageing resistance layer 2 structure in lens main part 1, improved the anti-ultraviolet ageing resistance of defocus myopia prevention and control lens.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A defocus myopia prevention and control lens, comprising:

the anti-ultraviolet anti-aging lens comprises a lens body (1), wherein an anti-ultraviolet anti-aging layer (2) is arranged on the lens body (1), an upper end face anti-falling ring (4) and a lower end face anti-falling ring (5) are arranged on the side wall of the lens body (1), and an upper end face hydrophobic membrane layer (3) and a lower end face hydrophobic membrane layer (6) are arranged on the lens body (1).

2. The out-of-focus myopia prevention and control lens according to claim 1, wherein: the thickness of the ultraviolet-proof anti-aging layer (2) is one hundred nanometers to two hundred nanometers.

3. The out-of-focus myopia prevention and control lens according to claim 1, wherein: the upper end face anti-falling ring (4) is arranged at the corner of the side wall of the upper end face of the lens main body (1), and the lower end face anti-falling ring (5) is arranged at the corner of the side wall of the lower end face of the lens main body (1).

4. The out-of-focus myopia prevention and control lens according to claim 1, wherein: the sections of the upper end face anti-falling ring (4) and the lower end face anti-falling ring (5) are arc-shaped structures, and the radius of the inner arc is one millimeter.

5. The out-of-focus myopia prevention and control lens according to claim 1, wherein: the upper end face anti-falling ring (4) and the lower end face anti-falling ring (5) are higher than the surface of the lens main body (1).

6. The out-of-focus myopia prevention and control lens according to claim 1, wherein: the upper end surface hydrophobic membrane layer (3) is arranged on the upper end surface of the lens main body (1), and the lower end surface hydrophobic membrane layer (6) is arranged on the lower end surface of the lens main body (1).

7. The out-of-focus myopia prevention and control lens according to claim 1, wherein: the upper end surface hydrophobic film layer (3) and the lower end surface hydrophobic film layer (6) are silicon fluorine coating film structure layers.