CN115032816B - Composite full-focus lens for delaying progression of hyperopia - Google Patents
Composite full-focus lens for delaying progression of hyperopiaInfo
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- CN115032816B CN115032816B CN202210761415.5A CN202210761415A CN115032816B CN 115032816 B CN115032816 B CN 115032816B CN 202210761415 A CN202210761415 A CN 202210761415A CN 115032816 B CN115032816 B CN 115032816B
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- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/02—Lenses; Lens systems ; Methods of designing lenses
- G02C7/06—Lenses; Lens systems ; Methods of designing lenses bifocal; multifocal ; progressive
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- Ophthalmology & Optometry (AREA)
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- General Health & Medical Sciences (AREA)
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Abstract
本发明属于光学元件技术领域，涉及一种延缓远视发展的复合全焦镜片，所述镜片的第一表面和第二表面前后叠加形成复合多焦点和全焦的凸透镜。所述镜片包括：位于中心的屈光度稳定光区域，具有中心屈光度，使屈光度稳定光区域视物成像完全落在视网膜上；位于该屈光度稳定光区域周侧的周边区域，所述周边区域具有凹型微透镜阵列构成的多点离焦结构且具有向周向梯度降低的至少两个周边屈光度，周边屈光度D1满足公式D1=D0（1‑log28X）‑n*Cos(X*π)，其中D0为中心屈光度，n的取值范围为0.01~10，X是所述凹型微透镜到镜片中心的距离。利用差异化设计诱导眼轴拉长，延缓眼睛远视的增加，适用于任何远视患者，尤其针对青少年远视患者效果更佳。
The present invention belongs to the technical field of optical elements and relates to a composite all-focal lens for delaying the progression of hyperopia. The lens comprises a first surface and a second surface superimposed front-to-back to form a composite multifocal and all-focal convex lens. The lens comprises: a centrally located stable diopter light region having a central diopter such that the image of objects viewed in the stable diopter light region falls entirely on the retina; and a peripheral region surrounding the stable diopter light region, the peripheral region comprising a multi-point defocus structure formed by a concave microlens array and having at least two peripheral diopters with decreasing circumferential gradients. The peripheral diopters D1 satisfy the formula D1 = D0 (1- log28X )-n*Cos(X*π), where D0 is the central diopter, n ranges from 0.01 to 10, and X is the distance from the concave microlens to the lens center. The lens utilizes a differentiated design to induce axial elongation of the eye, delaying the progression of hyperopia. The lens is suitable for all hyperopic patients, with particular efficacy for adolescent hyperopic patients.
Description
Technical Field
The invention belongs to the technical field of optical elements, relates to a lens, and particularly relates to a compound full-focus lens for delaying the development of hyperopia.
Background
A lens is a well known optical element, which is a passive optical element, used in an optical system to concentrate and spread optical radiation. By designing different curved surfaces on the surface of the lens, the needs of people with myopia inhibition development and myopia and presbyopia are met. The traditional lens has larger volume and belongs to a refractive optical element. The same lenses are arranged on a plane according to a certain period to form a lens array, and the optical property of the lens array formed by common lenses is the synthesis of single lens functions.
However, with the progress of scientific technology, current instruments and equipment have been moving toward the trend of optical, mechanical and electrical integration. The optical element manufactured by the traditional method has complex manufacturing process, and the manufactured optical element has large size and weight and can not meet the requirements of the current technological development. At present, lenses and lens arrays with very small diameters, which are generally not recognizable by human eyes, can be manufactured, and can be observed only by using a microscope, a scanning electron microscope, an atomic force microscope and the like, namely, micro lenses and micro lens arrays.
Micro lenses and micro lens arrays manufactured by micro optical technology have become a new scientific research development direction due to the advantages of small volume, light weight, convenient integration, array and the like. With the trend of miniaturization of optical elements, many new technologies have been developed for reducing the size of lenses and lens arrays, and micro lenses and micro lens arrays having diameters on the order of millimeters, micrometers, or even nanometers can now be fabricated.
For example, chinese patent application publication No. CN110687689a discloses a peripheral defocus spectacle lens of a microlens, which is configured as a central correction zone, a nasal microlens zone, a temporal microlens zone, and an underside microlens zone, and the nasal microlens zone and the temporal microlens zone are each configured with two progressive microlens zones and a total amount of microlens zones having different refractive powers. Or the spectacle lens is provided with a central correction area and an annular micro-lens area, wherein the annular micro-lens area is provided with two gradual annular micro-lens areas with different refractive powers and a full annular micro-lens area, or is provided with an annular lower micro-lens area in the lower area of the annular micro-lens area. The microlens area is composed of a plurality of independent microlens arrays, at least two or more microlens refractive powers, shapes and radial line length settings are different from each other in the microlens array area, the independent microlens settings are convex lenses relative to the central correction area, the radial line length is 0.2mm to 4.5mm, and the distance between two adjacent microlenses is 0.1mm to 0.4mm.
For another example, the Chinese patent application with the bulletin number of CN215494400U discloses a myopia defocusing spectacle lens with a microlens stack, which is composed of a mother surface and a son surface, wherein the mother surface is a rotationally symmetrical surface for reducing side center hyperopic defocusing, the son surface is a spherical or aspheric microlens surface with positive refractive power, and the two design surfaces are overlapped on the same refractive surface of the spectacle lens or respectively act on front and rear refractive surfaces to form a first refractive region for correcting ametropia of eyes, a second refractive region for correcting hyperopic defocusing and a third refractive region for compounding a myopia defocusing region.
The technical scheme adopts micro-lens defocus to solve the problem of myopia control. However, presbyopia problems also occur very often in children, where the quality of vision is closely related to the degree of hyperopia. Mild hyperopia can be compensated for by accommodation without vision loss. However, hyperopia is not compensated for by accommodation, i.e., it is absolute hyperopia, often resulting in a different degree of vision loss. Vision disorders caused by presbyopia are common in general, and in particular, as the age increases, accommodation decreases and the progression of recessive presbyopia is converted to dominant presbyopia. Thus, not only is the far vision reduced, but near vision is more likely to be obstructed. It is particularly important to control the progression of hyperopia and there is a need for a microlens that can delay progression of hyperopia.
Disclosure of Invention
The application aims to solve the problems and provide a compound full-focus lens for delaying the development of hyperopia;
The invention creatively provides a compound full-focus lens for delaying the progression of hyperopia, which comprises a lens, wherein the first surface and the second surface of the lens are overlapped back and forth to form a compound multifocal convex lens and a full-focus convex lens.
The lens includes:
A diopter stable optical zone in the center having a central diopter such that the diopter stable optical zone vision imaging falls entirely on the retina;
A peripheral region located on the peripheral side of the diopter stable light region, the peripheral region having a multi-point defocus structure constituted by a concave microlens array, so that the peripheral region has at least two peripheral diopters decreasing in a circumferential gradient, the peripheral diopter D1 satisfying the formula (I):
| D1=D0（1-log28X)- n*Cos(X*π) | (I) |
wherein D 0 is the central diopter, n is 0.01-10, X is the distance from the center of the concave micro lens to the center of the lens, and the unit is millimeter.
The peripheral area adopts a special peripheral diopter gradient, so that an object imaging part of the peripheral area falls behind retina, the eye axis is induced to be prolonged, and the increase of eye hyperopia is delayed;
the concave microlens array is positioned in the peripheral region such that peripheral diopter is determined by a central diopter, concave microlenses and defocus, and the gradient of peripheral diopter is reduced by a concave microlens diopter size on the optic, which is related to the distance from the center of the concave microlens to the center of the optic in the same optic.
In the above-described compound full-focus lens for retarding progression of hyperopia, the diopter stable optical zone has an area ranging from 1 to 200 square millimeters.
In the above composite full-focus lens for retarding the progression of hyperopia, the area of the peripheral region is in the range of 10 to 20000 square millimeters.
In the compound full-focus lens for delaying the progression of hyperopia, the peripheral diopter range is-10.00D to +20.00D.
In the compound full-focus lens for delaying the progression of hyperopia, the peripheral diopter range is-10.00D to-1.00D.
In the above-mentioned compound full-focus lens for delaying the progression of hyperopia, the concave microlens array is formed by arranging a plurality of independent concave microlenses in a hexagonal array along the peripheral side of the diopter stabilizing light area, and the diameters of the concave microlenses are reduced layer by layer from inside to outside. Thereby achieving better progressive eye axis elongation induction effect.
In the above-mentioned composite full-focus lens for retarding the progression of hyperopia, the first surface of the lens is a defocus structure, and the multi-point defocus structure is disposed on the second surface of the lens.
In the above-mentioned compound full-focus lens for delaying the progression of hyperopia, the defocus structure is a spherical structure.
In the composite full-focus lens for delaying the progression of hyperopia, the defocus structure is a spherical structure with a diameter of 250-500 mm.
In one such compound full-focus lens for retarding progression of hyperopia, the peripheral zone covers an area of the lens other than the diopter stable light zone. The visual object imaging is completely located on the retina and behind the retina, so that the stimulus of a peripheral light zone to the retina is increased, no blind area exists, the eye axis is induced to be prolonged, and the increase of the hyperopia of the eye is delayed.
Compared with the prior art, the application has the advantages that:
1) The invention utilizes the lens to form a diopter stable light area and a peripheral area, induces the eye axis to be stretched, delays the increase of the far vision of eyes, reduces the peripheral diopter according to the habit gradient of the object of the eyes of people, has soft transition, no blind area, high comfort level and strong applicability, is suitable for any far vision patient, and has better effect especially for teenager far vision patients.
2) The invention adopts the differential design of the multi-point defocusing structure of the micro lens formed by the defocusing structure and the concave micro lens, and provides smaller defocusing amount by the superposition effect of the concave micro lens and the spherical structure, so that the retina is better adapted to the defocusing of the peripheral area.
Drawings
Fig. 1 is a schematic structural view of one side of a lens according to the present application.
Fig. 2 is a partial enlarged view of fig. 1.
Fig. 3 is a schematic structural view of another side of the lens according to the present application.
Fig. 4 is a schematic partial cross-sectional view provided by the present application.
In the figure, 1-optic, 2-diopter stable light zone, 3-peripheral zone, 4-concave microlens.
Detailed Description
Further illustrated by the following specific examples;
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than as described herein, and therefore the present invention is not limited to the specific embodiments disclosed below.
Example 1
A compound full-focus lens for retarding progression of hyperopia is shown in fig. 1,2, 3 and 4. The lens 1 has a first surface and a second surface. The first surface is an outer surface and adopts a spherical structure with the radius R of 500mm, and the second surface is an inner surface and adopts a microlens multipoint defocusing structure with a concave microlens array. The first surface and the second surface are overlapped back and forth to form a convex lens with multiple focuses and full focus.
The lens 1 comprises a diopter stable light zone 2 and a peripheral zone 3.
The diopter stable light zone 2 is located in the center of the lens 1 with a central diopter of +4.00D. The radius of the diopter stable light region 2 is 5 millimeters.
The peripheral area 3 is located on the peripheral side of the diopter stable light area 2, covers the area of the lens 1 other than the diopter stable light area 2, and the radius of the peripheral area 3 is 30 mm. The diameter of the concave microlens was 0.6 mm.
The concave microlens array of the peripheral region 3 adopts a plurality of peripheral diopters which decrease along the central-to-circumferential gradient, the peripheral diopters take +4.00D as an initial value, the gradient change of D 1=D0*（1-log28 X) -n is carried out according to the Cos (X pi), n=0.005, namely, the peripheral diopter of the concave microlens corresponding to the radius X is 6mm and is 1.84D, the peripheral diopter of the concave microlens corresponding to the radius X is 7 mm and is 1.66D, the peripheral diopter of the concave microlens corresponding to the radius X is 8mm and is 1.50D, the peripheral diopter of the concave microlens corresponding to the radius X is 9 mm and is 1.36D, the peripheral diopter of the concave microlens corresponding to the radius X is 10 mm and is 1.24D, the peripheral diopter of the concave microlens corresponding to the radius X is 11 mm and is 1.12D, and the above data can be obtained by adopting NIMO and meter tests.
Example 2
A compound full-focus lens for retarding progression of hyperopia is shown in fig. 1,2, 3 and 4. The lens 1 has a first surface and a second surface. The first surface is an outer surface and adopts a spherical structure with the radius R of 500mm, and the second surface is an inner surface and adopts a microlens multipoint defocusing structure with a concave microlens array. The first surface and the second surface are overlapped back and forth to form a convex lens with multiple focuses and full focus.
The lens 1 comprises a diopter stable light zone 2 and a peripheral zone 3.
The diopter stable light zone 2 is located in the center of the lens 1 with a central diopter of +5.00d. The radius of the diopter stable light region 2 is 5 millimeters.
The peripheral area 3 is located on the peripheral side of the diopter stable light area 2, covers the area of the lens 1 other than the diopter stable light area 2, and the radius of the peripheral area 3 is 30 mm. The diameter of the concave microlens was 0.6 mm.
The concave microlens array of the peripheral region 3 adopts a plurality of peripheral diopters which decrease along the central-to-circumferential gradient, the peripheral diopters take +5.00D as an initial value, the peripheral diopters are according to D 1=D0*（1-log28 X) -n [ s ] (X [ pi ]), n=0.005, namely, the peripheral diopters of the concave microlenses corresponding to the radius X is 6 mm and is 2.30D, the peripheral diopters of the concave microlenses corresponding to the radius X is 7 mm and is 1.66D, the peripheral diopters of the concave microlenses corresponding to the radius X is 8mm and is 1.50D, the peripheral diopters of the concave microlenses corresponding to the radius X is 9 mm and is 1.36D, the peripheral diopters of the concave microlenses corresponding to the radius X is 10mm and is 1.24D, the peripheral diopters of the concave microlenses corresponding to the radius X is 11 mm and is 1.01D, and the above data can be obtained by NIMO and meter testing.
The lens provided by the invention can enable the peripheral area to be imaged after retina through the concave micro lens to generate gradient defocusing, when light rays pass through the micro lens, a good defocusing effect can be formed, when light rays pass through the non-micro lens part, a clear visual field can be formed, the comfort level is better, the effect of stretching an eye axis is better, meanwhile, the comfort level of a wearer is greatly improved, the comfort level is better, and the eye vision habit of human eyes is met.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Although the terms lens, diopter stable light region, peripheral region, concave microlens, etc. are used more herein. These terms are only used to more conveniently describe and explain the nature of the invention and should be construed in a manner consistent with their spirit and scope.
Claims (8)
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| CN202210761415.5A CN115032816B (en) | 2022-06-29 | 2022-06-29 | Composite full-focus lens for delaying progression of hyperopia |
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| CN202210761415.5A CN115032816B (en) | 2022-06-29 | 2022-06-29 | Composite full-focus lens for delaying progression of hyperopia |
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| CN115032816B true CN115032816B (en) | 2025-10-17 |
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| CN115542578B (en) * | 2022-09-30 | 2025-03-14 | 明灏科技（北京）有限公司 | Vision control lens and glasses |
| CN115826266B (en) * | 2022-12-01 | 2025-09-26 | 苏州明世光学科技有限公司 | Defocused spectacle lens, design method, and glasses |
| CN116125680B (en) * | 2023-03-27 | 2025-10-17 | 江苏汇鼎光学眼镜有限公司 | Partitioned gradual change multiple spot defocus type myopia prevention and control lens |
| CN116953957A (en) * | 2023-07-21 | 2023-10-27 | 江苏康耐特光学有限公司 | Myopia prevention and control spectacle lens |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN217767087U (en) * | 2022-06-29 | 2022-11-08 | 浙江伟星光学有限公司 | Combined type hyperopia lens |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI507763B (en) * | 2012-11-22 | 2015-11-11 | Control the growth of the optical axis of the lens | |
| CN103926711B (en) * | 2013-01-14 | 2016-10-05 | 九扬贸易有限公司 | Optical lenses to control eye axial growth |
| US10061143B2 (en) * | 2014-08-29 | 2018-08-28 | Johnson & Johnson Vision Care, Inc. | Multifocal lens design for preventing and/or slowing myopia progression |
| CN215494400U (en) * | 2021-06-09 | 2022-01-11 | 苏州明世光学科技有限公司 | Myopia out-of-focus spectacle lens with superposed micro-lenses |
| CN215006124U (en) * | 2021-06-24 | 2021-12-03 | 苏州大学 | Asymmetrical multipoint peripheral myopia defocus spectacle lenses for juvenile myopia control |
| CN215678948U (en) * | 2021-08-29 | 2022-01-28 | 苏州明世光学科技有限公司 | Out-of-focus spectacle lens suitable for teenager myopia control |
| CN114609799B (en) * | 2022-01-30 | 2024-04-16 | 苏州明世光学科技有限公司 | A defocused eyeglass lens and its preparation mold |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN217767087U (en) * | 2022-06-29 | 2022-11-08 | 浙江伟星光学有限公司 | Combined type hyperopia lens |
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