CN217821146U

CN217821146U - Myopia prevention sphere out of focus lens

Info

Publication number: CN217821146U
Application number: CN202222211906.0U
Authority: CN
Inventors: 朱海林
Original assignee: Jiangsu Perfect Optical Co ltd
Current assignee: Jiangsu Perfect Optical Co ltd
Priority date: 2022-08-23
Filing date: 2022-08-23
Publication date: 2022-11-15
Anticipated expiration: 2032-08-23

Abstract

The utility model discloses a myopia prevention sphere out of focus lens, it includes: a spherical optical zone located at the center of the lens body; the far-vision optical zone is positioned on the upper side of the lens body and is spaced from the spherical optical zone; the near optical area is positioned on the lower side of the lens body, and the near optical area is separated from the spherical optical area; and a defocus optical zone located between the spherical optical zone and the far vision optical zone and near vision optical zone; the spherical optical area is circular, the far-vision optical area and the near-vision optical area are fan-shaped, the two sides of the out-of-focus optical area are provided with a progressive Qu Guangdai which are arranged in a radian mode, and the progressive refractive zones are densely distributed with refractive units. The utility model discloses a peripheral out of focus optics district of sphere optics district cooperation at center compares progressive no peripheral astigmatism region, and the vision is regional wide, uses more for comfortablely. Meanwhile, the far vision optical area and the near vision optical area are designed up and down, so that the far vision and the near vision are transited, the focusing is completed, and the fatigue caused by overuse of eyes is avoided.

Description

Myopia prevention sphere out of focus lens

Technical Field

The utility model belongs to the technical field of out of focus lens, specifically speaking relates to a myopia prevention sphere out of focus lens.

Background

As the teenagers are in the period of rapid body development, and meanwhile, in the learning process, the eye using requirement is very large, eyeballs need frequent adjustment, the extensibility is large, and myopia is easy to form. The long-term wearing of the glasses has the habit of wearing the glasses no matter seeing far or near, so that the eye disorder is caused inevitably, the eyeballs are over-stressed, and the nausea cycle of continuous increase of the degree of the glasses is caused.

The common myopia glasses only meet the requirements of far vision, are not suitable for the habits of far vision and writing of teenagers, are not in accordance with the eye using mechanism of the teenagers, and when the eyes are switched from far vision to near vision, the eyeball axis cannot follow up the adjustment of the change speed, so that the object to be seen is behind the eyeball axis, and the eye fatigue can be caused after the eye axis is repeatedly used for many times, thereby further deepening the myopia degree. Therefore, the design of the optical defocusing lens capable of effectively controlling the eye power and the increase of the eye axis has great significance.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims to solve the technical problem that a myopia prevention sphere out of focus lens is provided, this resin lens can make the visual zone wide through the design from the focus district, can not cause eye fatigue because of relapse switching when far and near switch over, can carry out fine protection to the eye, avoids the visual zone in the past narrow, along with the visual zone conversion, with eye fatigue's trouble.

In order to solve the technical problem, the utility model discloses a myopia prevention sphere out of focus lens, it includes:

a spherical optical zone located at the center of the lens body;

the far-vision optical area is positioned on the upper side of the lens body and is spaced from the spherical optical area;

the near optical area is positioned on the lower side of the lens body, and the near optical area is separated from the spherical optical area; and

a defocus optical zone located between the spherical optical zone and the far vision optical zone and the near vision optical zone;

the spherical optical area is circular, the far-vision optical area and the near-vision optical area are fan-shaped, the two sides of the out-of-focus optical area are provided with a progressive Qu Guangdai which are arranged in a radian mode, and the progressive refractive zones are densely distributed with refractive units.

According to an embodiment of the present invention, the progressive refractive band is symmetrical with respect to the center of the lens body.

According to an embodiment of the present invention, the dioptric unit is configured to have a circular shape with a diameter of 0.1mm to 1.5mm, and the surface thereof is convex or concave, and the height of the convex or concave is 0.01 μm to 4 μm.

According to an embodiment of the present invention, the progressive refractive band has a positive refractive power added to the spherical optical area or a negative refractive power added to the spherical optical area.

According to an embodiment of the present invention, the spherical optical zone has a diameter of 12-22mm.

Compared with the prior art, the utility model discloses can obtain including following technological effect:

compared with a progressive non-peripheral astigmatism area, the visual area is wide and more comfortable to use by matching the central spherical optical area with the peripheral out-of-focus optical area. Meanwhile, the far vision optical area and the near vision optical area are designed up and down, so that the far vision and the near vision are transited, the focusing is completed, and the fatigue caused by overuse of eyes is avoided.

Of course, it is not necessary for any product to achieve all of the above-described technical effects simultaneously.

Drawings

The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:

fig. 1 is a schematic view of a myopic prevention spherical defocus lens according to an embodiment of the present invention.

Reference numerals

A spherical optic zone 10, a far vision optic zone 20, a near vision optic zone 30, a defocus optic zone 40, and a progressive refractive zone 50.

Detailed Description

The following detailed description will be made with reference to the accompanying drawings and examples, so that how to implement the technical means of the present invention to solve the technical problems and achieve the technical effects can be fully understood and implemented.

Referring to fig. 1, fig. 1 is a schematic view of a myopic prevention spherical defocus lens according to an embodiment of the present invention.

As shown, a myopia-preventing spherical-out-of-focus lens, comprising: a spherical optical zone 10 located in the center of the lens body; a distance vision optical zone 20 located on the upper side of the lens body, the distance vision optical zone 20 being spaced from the spherical optical zone 10; a near optical zone 30 located on the lower side of the lens body, the near optical zone 30 being spaced from the spherical optical zone 10; and a defocus optical zone 40 located between the spherical optical zone 10 and the distance and near

optical zones

20, 30; wherein, the spherical optical zone 10 is circular, the far vision optical zone 20 and the near vision optical zone 30 are fan-shaped, the two sides of the out-of-focus optical zone 40 are provided with progressive dioptric zones 50 arranged in radian, and the progressive dioptric zones 50 are densely distributed with dioptric units.

The utility model discloses an among the embodiment, four regions of resin lens body shaping play in the mould, realize the conversion of defocus gradually, have solved the user and have seen the object of different distances and need different luminosity, reduce the problem of eye muscle load. Specifically, the spherical optical zone 10 is located at the very center of the lens body, and it is arranged in a circle around the fitting cross, covering the area occupied by daily eye-ups, providing corrective power for normal astigmatism, myopia or hyperopia. The far vision optical zone 20 is located on the upper side of the lens body, so that the lens is convenient to see far, can meet the requirements of driving environment and is arranged in a fan shape. The near optical zone 30 is located at the lower side of the lens body, so as to facilitate the near viewing, and is used in the environment of reading and writing, and is arranged in a fan shape. The spherical optical zone 10 at the center of the interval between the far vision optical zone 20 and the near vision optical zone 30 is filled by the defocusing optical zone 40, and the defocusing adjustment of the eyes is provided by utilizing the defocusing optical principle, so that the fatigue of the eye muscles is reduced.

In addition, the progressive dioptric zones 50 are arranged on two sides of the defocusing optical zone 40 in a radian arrangement, and the progressive dioptric zones 50 are densely distributed with dioptric units, so that the problems of overuse and fatigue of eyes are avoided through progressive dioptric defocusing due to large change of eyeballs and visual distances when a user looks at the upper side or the lower side, and the advantages of slow transition and eye muscle relaxation are realized. The dioptric unit is convenient to form and improves diopter.

In a preferred embodiment, the progressive refraction band 50 is symmetrical left and right relative to the center of the lens body, has strong uniformity and is comfortable for eyes.

Further, the dioptric unit is set in a circular shape of 0.1mm to 1.5mm, and the surface is convex or concave, and the height of the convex or concave is 0.01 μm to 4 μm. In the present embodiment, the dioptric unit 40 has a positive diopter or a negative diopter that is relatively increased when it is convex or concave, so as to complete diopter change, adapt to visual range, complete defocus change, and ensure eye comfort.

That is, the progressive dioptre 50 has a positive power added to the spherical optical zone 10 or a negative power added to the spherical optical zone 10, thereby facilitating defocus switching.

Further, spherical optical zone 10 has a diameter of 12-22mm to ensure the use of a central sufficient area for a daily eye-level environment, such as the use of electronic products, offices, etc.

To sum up, the utility model discloses a peripheral out of focus optics district of sphere optics district cooperation at center compares progressive no peripheral astigmatism region, and the vision is regional wide, uses more for comfortablely. Meanwhile, a far vision optical area and a near vision optical area are designed up and down, so that the user can see far and near transitively, focusing is completed, and fatigue caused by overuse of eyes is avoided.

The foregoing description shows and describes several preferred embodiments of the present invention, but as aforementioned, it is to be understood that the invention is not limited to the forms disclosed herein, and is not to be construed as excluding other embodiments, but is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings or the skill or knowledge of the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims

1. A myopic preventive sphere-out-of-focus lens, comprising:

a spherical optical zone located at the center of the lens body;

a distance vision optical zone on the upper side of the lens body, the distance vision optical zone being spaced from the spherical optical zone;

a myopic optical zone located on the lower side of the lens body and spaced from the spherical optical zone; and

the spherical optical area is circular, the far-vision optical area and the near-vision optical area are fan-shaped, progressive dioptric zones arranged in a radian mode are arranged on two sides of the out-of-focus optical area, and dioptric units are densely distributed in the progressive dioptric zones.

2. A myopia-preventing spherical defocus lens as claimed in claim 1, wherein the progressive refraction band is bilaterally symmetric with respect to the center of the lens body.

3. A myopia-preventing spherical defocus lens as claimed in claim 1, wherein the dioptric unit is provided in a circular shape of 0.1mm to 1.5mm and has a surface convex or concave, and the height of the convex or concave is 0.01 μm to 4 μm.

4. A myopia-preventing sphere-through lens of claim 1, wherein the progressive dioptric band has a positive addition of power to the sphere optic zone or a negative addition of power to the sphere optic zone.

5. The myopic-preventing spherically out-of-focus lens of claim 1, wherein the spherical optical zone is 12-22mm in diameter.