CN213766735U - Myopia out-of-focus mould - Google Patents
Myopia out-of-focus mould Download PDFInfo
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- CN213766735U CN213766735U CN202022775678.0U CN202022775678U CN213766735U CN 213766735 U CN213766735 U CN 213766735U CN 202022775678 U CN202022775678 U CN 202022775678U CN 213766735 U CN213766735 U CN 213766735U
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Abstract
The utility model relates to a myopia out of focus mould, the mould includes mould body (100), still includes: the myopia correction and light dispersion area (1) is positioned in the center of one surface of the die body (100); the myopia and defocus functional area (2) surrounds the myopia correction and astigmatism area (1) and has different refractive power from the myopia correction and astigmatism area, the myopia and defocus functional area (2) comprises a plurality of circles of gradually arranged elliptic refraction rings, and the elliptic array on the refraction rings is provided with hemispherical concave small holes; and the lens peripheral area (3) is positioned at the periphery of the myopic defocus functional area (2). The utility model discloses the mould can produce myopia out of focus lens.
Description
Technical Field
The utility model relates to an optical lens piece technical field, concretely relates to optical lens piece's myopia out of focus mould.
Background
The myopia out-of-focus lens is a lens which can provide diopter which is more accordant with a prescription for vision ametropia so as to guarantee clear central vision and meet the normal vision requirement of a wearer in the process of seeing far, the existing myopia out-of-focus lens is generally carried out by a mold in the production and manufacturing process, and the existing mold is complex in relative structure and is not beneficial to actual production and manufacturing.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model aims at providing a can make mould of myopia out of focus lens.
The technical scheme of the utility model as follows:
a myopic out-of-focus mold, comprising a mold body (100), further comprising:
the myopia correction and light dispersion area (1) is positioned in the center of one surface of the die body (100);
the myopia and defocus functional area (2) surrounds the myopia correction and astigmatism area (1) and has different refractive power from the myopia correction and astigmatism area, the myopia and defocus functional area (2) comprises a plurality of circles of gradually arranged elliptic refraction rings, and the elliptic array on the refraction rings is provided with hemispherical concave small holes;
and
and the lens peripheral area (3) is positioned at the periphery of the myopic defocus functional area (2).
Furthermore, in the multi-circle gradually-arranged elliptic refractive ring, the long axis of the refractive ring at the inner circle is 12-16mm, the short axis is 8-12mm, and the length increment of the long axis and the short axis of each circle from inside to outside is 1.25 times of the caliber of the small hole.
Furthermore, the aperture of the small hole is 0.2-2 mm.
Further, the number of the elliptic bent rings which are arranged in the multi-ring progressive manner is 5-7 rings.
Borrow by above-mentioned scheme, the utility model discloses at least, have following advantage:
the utility model discloses the mould can produce myopia out of focus lens, the lens that produces can provide the diopter of the prescription of more accord with vision ametropia usefulness, with the clear central vision of guarantee, satisfy the normal vision requirement of the person of wearing when looking far away, adopt the more different diopter to add the protruding calorimeter of light in other ring structures, the peripheral myopia nature out of focus of myopic patient's eyeball can be eliminated, partial light forms images in front of the retina, thereby delay the myopic deepening of teenagers effectively. The concentric circle structure can well solve the problem that the defocusing effect is poor due to eye movement.
The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate a certain embodiment of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a top view of the present invention;
in the figure:
100-a mold body;
1-zone of myopia correction and astigmatism;
2-a myopic defocus functional area;
3-lens peripheral zone.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
Referring to fig. 1 and 2, a preferred embodiment of the present invention provides a myopic defocus mold, which includes a mold body 100, and further includes: a myopia correction and astigmatism region 1 located at the center of one face of the mold body 100; the myopia and defocus functional area 2 surrounds the myopia correction and astigmatism area 1 and has different refractive power from the myopia and defocus functional area 2, the myopia and defocus functional area 2 comprises a plurality of circles of gradually arranged elliptic refractive rings, and the elliptic array on each refractive ring is provided with hemispherical concave small holes; and a lens peripheral area 3 positioned at the periphery of the myopic defocus functional area 2.
In the multi-circle gradually-arranged elliptic refractive ring, the long axis of the refractive ring at the inner circle is 12-16mm, the short axis of the refractive ring at the inner circle is 8-12mm, and the length increment of the long axis and the short axis of each circle from inside to outside is 1.25 times of the caliber of the small hole.
-the aperture of the small hole is 0.2-2 mm.
-the number of said turns of progressively arranged elliptical flexion rings is between 5 and 7 turns.
The utility model discloses at least, have following advantage:
the utility model discloses the mould can produce myopia out of focus lens, the lens that produces can provide the diopter of the prescription of more accord with vision ametropia usefulness, with the clear central vision of guarantee, satisfy the normal vision requirement of the person of wearing when looking far away, adopt the more different diopter to add the protruding calorimeter of light in other ring structures, the peripheral myopia nature out of focus of myopic patient's eyeball can be eliminated, partial light forms images in front of the retina, thereby delay the myopic deepening of teenagers effectively. The concentric circle structure can well solve the problem that the defocusing effect is poor due to eye movement.
The myopic defocus functional area is a continuous lens array distributed on a series of concentric ellipses and has the function of imaging images on the retina, thereby effectively reducing frequent adjustment actions of human eyes and relieving eyestrain, and achieving the purposes of preventing and controlling the deepening of myopia
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (4)
1. A myopic out-of-focus mold, comprising a mold body (100), further comprising:
the myopia correction and light dispersion area (1) is positioned in the center of one surface of the die body (100);
the myopia and defocus functional area (2) surrounds the myopia correction and astigmatism area (1) and has different refractive power from the myopia correction and astigmatism area, the myopia and defocus functional area (2) comprises a plurality of circles of gradually arranged elliptic refraction rings, and the elliptic array on the refraction rings is provided with hemispherical concave small holes;
and
and the lens peripheral area (3) is positioned at the periphery of the myopic defocus functional area (2).
2. A myopic out-of-focus mold as recited in claim 1, wherein:
in the multi-circle gradually-arranged elliptic refracting rings, the long axis of the refracting ring at the inner circle is 12-16mm, the short axis is 8-12mm, and the length increment of the long axis and the short axis of each circle from inside to outside is 1.25 times of the caliber of a small hole.
3. A myopic out-of-focus mold as claimed in claim 2, wherein: the aperture of the small hole is 0.2-2 mm.
4. A myopic out-of-focus mold as claimed in claim 3, wherein: the number of the elliptic bent rings which are arranged in a multi-ring progressive manner is 5-7 rings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022775678.0U CN213766735U (en) | 2020-11-26 | 2020-11-26 | Myopia out-of-focus mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022775678.0U CN213766735U (en) | 2020-11-26 | 2020-11-26 | Myopia out-of-focus mould |
Publications (1)
| Publication Number | Publication Date |
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| CN213766735U true CN213766735U (en) | 2021-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022775678.0U Active CN213766735U (en) | 2020-11-26 | 2020-11-26 | Myopia out-of-focus mould |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114228208A (en) * | 2021-12-16 | 2022-03-25 | 浙江黄岩环日光学有限公司 | Child prevention and control lens mold and production process thereof |
-
2020
- 2020-11-26 CN CN202022775678.0U patent/CN213766735U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114228208A (en) * | 2021-12-16 | 2022-03-25 | 浙江黄岩环日光学有限公司 | Child prevention and control lens mold and production process thereof |
| CN114228208B (en) * | 2021-12-16 | 2023-08-22 | 浙江黄岩环日光学有限公司 | Child prevention and control lens mold and production process thereof |
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