CN111880323A - Multi-point defocusing prism combined lens for preventing and controlling progressive myopia and distance - Google Patents
Multi-point defocusing prism combined lens for preventing and controlling progressive myopia and distance Download PDFInfo
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- CN111880323A CN111880323A CN202010827394.3A CN202010827394A CN111880323A CN 111880323 A CN111880323 A CN 111880323A CN 202010827394 A CN202010827394 A CN 202010827394A CN 111880323 A CN111880323 A CN 111880323A
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- 208000001309 degenerative myopia Diseases 0.000 title claims abstract description 25
- 239000000758 substrate Substances 0.000 claims abstract description 27
- 208000001491 myopia Diseases 0.000 claims abstract description 22
- 230000004379 myopia Effects 0.000 claims abstract description 22
- 238000004519 manufacturing process Methods 0.000 claims abstract description 11
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- 230000003287 optical effect Effects 0.000 claims description 10
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- 230000004329 axial myopia Effects 0.000 description 2
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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
- G02C7/022—Ophthalmic lenses having special refractive features achieved by special materials or material structures
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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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- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/14—Mirrors; Prisms
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- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C2202/00—Generic optical aspects applicable to one or more of the subgroups of G02C7/00
- G02C2202/24—Myopia progression prevention
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- Ophthalmology & Optometry (AREA)
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
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Abstract
The invention discloses a multi-point defocusing prism-transparent combined lens for preventing and controlling progressive myopia and near-distance, which comprises a multi-point focusing lens, a prism-transparent combination, a base top, a substrate and a multi-point focusing area, wherein the multi-point focusing lens is arranged at the center of the prism-transparent combination; the invention relates to a far and near dual-purpose multipoint defocusing prism and transmission combined lens for preventing and controlling progressive myopia, which integrates the multipoint defocusing lens and the prism combined lens, wherein the lower half part is a composite structure of three parts of multipoint defocusing, a lens and a prism, the multipoint defocusing and the multipoint defocusing of the upper half part are an A mould for producing the lens, the prism and transmission combined body in the lower half part is a B mould for producing the lens, and an AB mould is combined through a production process of a combined mould to produce a substrate of the product to form a myopia prevention and control product.
Description
Technical Field
The invention relates to the technical field of lenses, in particular to a multi-point defocusing prism and transmission combined lens for preventing and controlling progressive myopia and distance.
Background
The comprehensive prevention and control implementation scheme of the myopia of the children and the teenagers is provided by the ministry of education, health and commission and the like in 2018, the aim of 2023 is to reduce the total myopia rate of the national children and the teenagers by more than 0.5 percent per year on the basis of 2018, the myopia rate of the high-incidence province is reduced by more than 1 percent per year, the myopia rate of the new children and the overall level of the eyesight health are obviously improved in 2030, the myopia rate of the 6-year children is controlled to be about 3 percent, the myopia rate of the pupils is reduced to be below 38 percent, the myopia rate of the juniors is reduced to be below 60 percent, the myopia rate of the students in the high and middle stages is reduced to be below 70 percent, the monitoring result of the national health commission in 2019 shows that the total myopia rate of the national children and the teenagers in 2018 is 53.6 percent, wherein the primary school students is 36.0 percent, the juniors is 71.6 percent, the high school students is 81.0 percent, and the myopia problem in the low, the myopia management white paper (2019) is characterized in that people with myopia progression speed and progression amount more than or equal to 0.75D/year are called progressive myopia, the progressive myopia proportion of children and teenagers in China is very high, the eyesight health of the children and the teenagers is protected, the occurrence and development of myopia prevention are at the forefront, according to the characteristics of learning and living of the children and the teenagers, the existing single-focus lens only can enable the children and the teenagers to clearly see a distant blackboard, and when people see near books, due to the fact that the edge degree of the single-focus lens is higher than the center degree, the adjustment amount and the integration amount of the eyes can be stimulated to see the near blackboard are increased, and accordingly the myopia degree of people can be continuously deepened when people read and write for a long time.
The multi-point out-of-focus lens in the prior art can only reduce the adjustment amount of eyes when seeing far and near, can not reduce the pressure of the inner part of the extraocular muscle on the eyeball wall when seeing near, and can not effectively relieve the progressive myopia deepening, the existing progressive multi-point lens can only reduce the adjustment force of children and teenagers from seeing far blackboard to seeing near book by setting the ADD value of the lens, can not reduce the pressure of the inner part of the extraocular muscle on the eyeball wall when seeing near, meanwhile, most of children and teenagers myopia patients are accompanied by outer canting and are not suitable for the existing progressive multi-point lens, so the single progressive multi-point lens has poor prevention and control effect on progressive myopia, and meanwhile, the existing single prism and lens combination lens can only be used for seeing near, and the characters on the blackboard can not be clearly seen, the glasses for watching the long distance are combined, most of the myopia patients of the children and the teenagers are students, so that the wearing of the glasses is inconvenient in the life and learning process, and the wearing effect is affected.
Disclosure of Invention
The invention aims to provide a multi-point defocusing prism and transparent combined lens for preventing and controlling progressive myopia and near-far dual-purpose, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a multi-point defocusing prism combined lens for preventing and controlling progressive myopia and distance comprises a multi-point focusing lens, a prism combination, a base top, a substrate and a multi-point defocusing area, the multi-point focusing lens is used as a far light area, the inner side surface of the multi-point focusing lens takes the optical center of the lens as a central point, a semicircular area with the radius of three to five millimeters is a far light center area, an annular area formed by a plurality of concentrically arranged micro lenses outside the far light center area is a multi-point focusing area, the lower semicircle of the lens is a near light area, the lower semicircle of the lens is formed by combining a multi-point focal length and a prism lens, the prism lens combination also comprises a base top and a substrate, the base is towards the inside, the base top is towards the outside, the inner surface of the prism-transparent combination is integrated with the inner surface of the whole lens, and the outer surface of the prism-transparent combination and the outer surface of the far light area are integrated in a butt joint mode along the horizontal diameter of the whole lens.
Preferably, the multi-point out-of-focus point-shaped micro lens is used for realizing positive optical defocus when a child and teenager myopia patient looks far and near.
Preferably, the prism-lens combination is formed by combining a lens and a prism structure, and the lens is specifically one of a concave lens, a convex lens and a plano-optic lens.
Preferably, the prism power is two-point seventy-five to three-point twenty-five prism powers.
Preferably, the prism and lens inner surface form the entire lens inner surface.
Preferably, the base of the prism assembly is tapered to a base thickness and forms an inwardly concave surface to form the prism plus lens assembly.
Preferably, the base-to-base thickness of the prism assembly decreases gradually and forms an outwardly convex surface to form the prism plus lens assembly.
Preferably, the first half of lens is the region of seeing far away, and the lower half of lens is children teenagers' reading and writing region, and the lower half is the composite construction of multiple spot defocus, lens and prism triplex, and the multiple spot defocus of the lens the latter half are the A mould of production lens, and the combination of arris in the latter half is the B mould of production lens, through the production technology of merging the mould with the AB mould amalgamation substrate of processing lens.
Compared with the prior art, the invention has the beneficial effects that:
the invention fuses a multi-point defocusing lens and a prism combined lens into a whole through a multi-point defocusing prism combined lens for preventing and controlling progressive myopia far and near, wherein the upper half part of the lens is a far-viewing area, the lower half part of the lens is a reading and writing area for children and teenagers, and the lower half part of the lens is a composite structure of three parts of a multi-point defocusing lens, a lens and a prism, wherein the multi-point defocusing lens and the multi-point defocusing lens of the upper half part are an A mould for producing the lens, a prism combined body in the lower half part is a B mould for producing the lens, an AB mould is combined through a production process of the combined mould to produce a substrate of the product, and then various production process processing in the later period is carried out to form the myopia prevention and control product which has the effects of preventing and controlling progressive myopia of the children and teenagers, and simultaneously the prism combination of the lower half part can reduce the pressure of extraocular muscles on the, thereby inhibiting the lengthening of the axis of the eye and preventing the growth of axial myopia.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic sectional structure at year a in the figure.
In the figure: 1-a multi-point out-of-focus lens; 2-edge transparent combination; 3-a superstrate; 4-a substrate; 5-multiple point out-of-focus zone.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
referring to fig. 1-2, the present invention provides a technical solution: a multi-point defocusing prism combined lens for preventing and controlling progressive myopia and distance comprises a multi-point focusing lens 1, a prism combination 2, a base top 3, a substrate 4 and a multi-point focusing area 5, wherein the multi-point focusing lens 1 is used as a distance light area, the inner side surface of the multi-point focusing lens 1 takes the optical center of the lens as a central point, a semicircular area with the radius of three to five millimeters is a distance light center area, an annular area formed by a plurality of microlenses arranged in a concentric circle shape except the distance light center area is a multi-point focusing area 5, the lower semicircle of the lens is a near light area, the lower semicircle of the lens is formed by the multi-point focusing and prism combination 2, the prism combination further comprises the base top 3 and the substrate 4, the substrate 4 is arranged inwards, the base top 3 is arranged outwards, the inner surface of the prism combination 2 is integrated with the inner surface of the whole lens, the outer surface of the prism combination 2 and the outer surface of the distance light area are integrally butted along the horizontal diameter of the whole lens, the punctiform micro-lenses of the multi-point out-of-focus area 5 are used for realizing positive optical defocusing when a child and teenager myope looks far and near, the prism lens combination is composed of a lens and a prism structure combination, the lens is specifically one of a concave lens, a convex lens and a plano-optic lens, the prism degree ranges from two points seven five to three points two five, the inner surface of the prism lens combination 2 and the inner surface of the lens form the inner surface of the whole lens, the thickness of the substrate 4 of the prism combination 2 is gradually reduced towards the substrate top 3, an inward concave surface is formed to form a combination of the prism and the lens, the upper half part of the lens is a far-looking area, the lower half part of the lens is a child and teenager reading and writing area, the lower half part of the lens is a composite structure of multi-point defocusing, the lens and the prism, the multi-, the prism-transparent combination 2 in the lower half part is a B mold for producing the lens, and the AB mold is combined with a substrate for processing the lens through a production process of combining molds.
Example two:
referring to fig. 1-2, the present invention provides a technical solution: a multi-point defocusing prism combined lens for preventing and controlling progressive myopia and distance comprises a multi-point focusing lens 1, a prism combination 2, a base top 3, a substrate 4 and a multi-point focusing area 5, wherein the multi-point focusing lens 1 is used as a distance light area, the inner side surface of the multi-point focusing lens 1 takes the optical center of the lens as a central point, a semicircular area with the radius of three to five millimeters is a distance light center area, an annular area formed by a plurality of microlenses arranged in a concentric circle shape except the distance light center area is a multi-point focusing area 5, the lower semicircle of the lens is a near light area, the lower semicircle of the lens is formed by the multi-point focusing and prism combination 2, the prism combination further comprises the base top 3 and the substrate 4, the substrate 4 is arranged inwards, the base top 3 is arranged outwards, the inner surface of the prism combination 2 is integrated with the inner surface of the whole lens, the outer surface of the prism combination 2 and the outer surface of the distance light area are integrally butted along the horizontal diameter of the whole lens, the punctiform micro-lenses of the multi-point out-of-focus area 5 are used for realizing positive optical defocusing when a child and teenager myope looks far and near, the prism lens combination is composed of a lens and a prism structure combination, the lens is specifically one of a concave lens, a convex lens and a plano-optic lens, the prism degree ranges from two points seven five to three points two five, the inner surface of the prism lens combination 2 and the inner surface of the lens form the inner surface of the whole lens, the thickness of the substrate 4 of the prism combination 2 is gradually reduced towards the substrate top 3, an outward convex surface is formed to form a combination of the prism and the lens, the upper half part of the lens is a far-looking area, the lower half part of the lens is a child and teenager reading and writing area, the lower half part of the lens is a composite structure of multi-point defocusing, the lens and the prism, the multi-, the prism-transparent combination 2 in the lower half part is a B mold for producing the lens, and the AB mold is combined with a substrate for processing the lens through a production process of combining molds.
Example three:
the invention provides a technical scheme that: a far-near dual-purpose multi-point defocusing prism-transparent combined 2 lens comprises a multi-point focusing lens, a prism-transparent combined 2, a base top 3, a substrate 4 and a multi-point defocusing area 5, wherein the shape of the near-use area prism-transparent combined 2 is semicircular, for example, as shown in a multi-point defocusing prism-transparent combined 2 lens shown in a figure 1-2, the lens can achieve the effects of preventing progressive myopia from continuously developing and delaying the axial lengthening of an eye and the axial myopia from continuously developing, wherein the multi-point defocusing lens 1 is a multi-point defocusing concave lens or a multi-point defocusing plano-optic, an annular area of a plurality of concentrically arranged microlenses is distributed on the inner side surface of part of the multi-point defocusing lens 1 shown in the figure 2, the distributed point microlenses in the area can provide the myopic defocusing function for children and teenagers, so that the part of the multi-point defocusing lens 1 has a plurality of visual field ranges with different degrees, and the whole lens is a resin lens with a refractive, light rays are imaged in the central area (yellow spot area) of retina through the far optical center area of the part of the multi-point out-of-focus lens 1, the light rays are imaged in the peripheral area of the retina through the annular area of the micro lens to form myopia out-of-focus, the growth of the focus of eyeball tracking is blocked, the eye axis is lengthened, and the myopia is continuously deepened, so that the purposes of controlling the elongation of the eye axis and relieving the deepening of the myopia degree are achieved, as can be seen from the figure 1-2, the lower semicircle of the outer side surface of the part of the multi-point out-of-focus lens 1 is provided with the prism out-of-focus combination 2 of the prism and the lens, the part of the prism out-of-focus combination 2 is semicircular, the upper edge of the prism out-of-focus combination 2 is a straight line and is coincided with the 180-degree horizontal diameter of the multi-point, the lower edge of the prism out-of-focus combination 2 is coincided with the lower edge of the multi-point out Technologically, a pouring technology of a mold A (a molding multipoint out-of-focus lens 1 part) and a mold B (a molding prism and transparent combination 2 part) for one-step molding is adopted, one-step molding is carried out, a substrate is formed by demolding, then the subsequent processing technologies of drying, hardening, polishing, film coating and the like are carried out, a multipoint out-of-focus prism and transparent combination 2 lens product is formed by detection, optimization and processing, as can be seen from figure 1, the prism and transparent combination 2 is located below the optical center of the multipoint out-of-focus lens 1 part, the inner surface of the prism and transparent combination 2 clings to the outer surface of the multipoint out-of-focus lens 1 part, the outer surface of the prism and transparent combination 2 is an inward concave surface or an outward convex surface, slight myopia uses an inward concave surface, high myopia uses an outward convex surface, the upper edge of the prism and transparent combination 2 part extends from inside to outside along the 180-degree horizontal diameter of the whole lens to, the thickness of the lens is gradually reduced from the substrate 4 to the base top 3 to be smoothly connected with the part of the multi-point defocusing lens 1, the direction of the base top 3 of the left spectacle lens is horizontal left, the substrate 4 is horizontal right in use, the lens structure has the structural characteristic of compounding three lenses of the part of the multi-point defocusing lens 1, the lens and the prism in the area of the edge-penetrating combination 2, light rays can be displaced from the substrate 4 to the base top 3 through the edge-penetrating combination 2 to change light rays emitted by a near object into relatively parallel light rays, the focal point is projected to the central area (yellow spot area) of retina through the dioptric system of the whole eyeball, so that the compression of extraocular muscles to the wall of the eyeball is reduced, the gathering capacity is complemented, meanwhile, the lens in the edge-penetrating combination 2 can relieve the tension of ciliary muscles when the near object is seen, the occurrence and the development of accommodation lag is prevented, and the part of the multi-point defocusing lens 1 (annular focal concave lens, After the lens (convex lens, plano-optic lens or concave lens) and the triple prism are compounded, the overquick lengthening of the eye axis can be effectively inhibited, the adjustment lag is inhibited, and the visual function is reconstructed.
Example four:
the point of difference from embodiment 3 is taken as the center to explain the perspective combined lens for preventing and controlling progressive myopia near and far dual-purpose, the perspective combined lens is located at the local position of a semicircular area below the horizontal diameter of 180 degrees of the multipoint out-of-focus lens substrate, the shape of the perspective combined lens can be an ellipse, a circle, an arc or other shapes, the perspective combined lens is located on the outer side surface of the multipoint out-of-focus lens, and the micro-lens annular area is located on the inner side surface of the multipoint out-of-focus lens.
It is noted that, herein, relational terms such as first and second, and the like may be 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. Also, 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 invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a prevent and control dual-purpose multiple spot defocus prism and pass through combination lens of progressive myopia distance which characterized in that includes:
a multi-point focusing lens (1);
a prism-transparent combination (2);
a base top (3);
a substrate (4); and
a multi-point defocusing zone (5);
the multi-point focusing lens (1) is used as a far light area, the inner side surface of the multi-point focusing lens (1) takes the optical center of the lens as a central point, a semicircular area with the radius of three to five millimeters is the far light center area, an annular area formed by a plurality of micro lenses arranged in a concentric circle shape except the far light center area is a multi-point focusing area (5), the lower semicircle of the lens is a near light area, the lower semicircle of the lens is formed by a multi-point focal length and prism combination (2), the prism lens combination further comprises a base top (3) and a base (4), the base (4) is arranged inwards, the base top (3) is arranged outwards, the inner surface of the prism combination (2) and the inner surface of the whole lens are integrated into a whole, and the outer surface of the prism combination (2) and the outer surface of the far light area are butted into a whole along the horizontal diameter of the whole.
2. The combined multi-point defocused prism lens for preventing and controlling progressive myopia and near-distance according to claim 1, wherein: the point-shaped micro lens of the multi-point out-of-focus area (5) is used for realizing positive optical defocusing when a child and teenager myopia patient looks far and near.
3. The combined multi-point defocused prism lens for preventing and controlling progressive myopia and near-distance according to claim 1, wherein: the prism and lens combination is composed of a lens and a prism structure combination, and the lens is specifically one of a concave lens, a convex lens and a plano-optic mirror.
4. The combined multi-point defocused prism lens for preventing and controlling progressive myopia and near-distance according to claim 1, wherein: the prism degree is from two points seven five to three points two five.
5. The combined multi-point defocused prism lens for preventing and controlling progressive myopia and near-distance according to claim 1, wherein: the inner surface of the prism-transparent combination (2) and the inner surface of the lens form the inner surface of the whole lens.
6. The combined multi-point defocused prism lens for preventing and controlling progressive myopia and near-distance according to claim 1, wherein: the thickness of the base (4) of the prism combination (2) is gradually reduced towards the base top (3), and an inward concave surface is formed to form a prism and lens combination.
7. The combined multi-point defocused prism lens for preventing and controlling progressive myopia and near-distance according to claim 1, wherein: the thickness of the base (4) of the prism combination (2) is gradually reduced towards the base top (3), and an outward convex surface is formed to form a prism and lens combination.
8. The combined multi-point defocused prism lens for preventing and controlling progressive myopia and near-distance according to claim 1, wherein: the first half of lens is the region of seeing far away, and the lower half of lens is children teenagers and reads and write the region, and the lower half is the composite construction of multiple spot defocusing, lens and prism triplex, and the multiple spot defocusing of lens the latter half are the A mould of production lens, and the arris in the latter half is transparent combination (2) for the B mould of production lens, through the substrate of the production technology of merging the mould with AB mould amalgamation processing lens.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010827394.3A CN111880323A (en) | 2020-08-17 | 2020-08-17 | Multi-point defocusing prism combined lens for preventing and controlling progressive myopia and distance |
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| CN202010827394.3A CN111880323A (en) | 2020-08-17 | 2020-08-17 | Multi-point defocusing prism combined lens for preventing and controlling progressive myopia and distance |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113996936A (en) * | 2021-09-28 | 2022-02-01 | 视立美视光科技集团(西安)有限公司 | Digital laser engraving process for defocused lens |
| CN114114711A (en) * | 2020-12-23 | 2022-03-01 | 东海光学株式会社 | Spectacle lens for inhibiting myopia progression |
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| CN201212929Y (en) * | 2008-07-04 | 2009-03-25 | 茹刚 | Specially manufactured myopia spectacle lens for myopia control |
| US20170131567A1 (en) * | 2015-11-06 | 2017-05-11 | Hoya Lens Thailand Ltd. | Spectacle Lens |
| CN208255563U (en) * | 2018-05-12 | 2018-12-18 | 段亚东 | A kind of composite prisms piece |
| CN109188716A (en) * | 2018-10-13 | 2019-01-11 | 赵卫国 | A kind of ring coke rib lens with prevention myopia development and treatment pseudo-myopia function |
| CN210109484U (en) * | 2019-02-26 | 2020-02-21 | 丹阳佰易视光学眼镜有限公司 | Multi-region composite out-of-focus lens for preventing and controlling myopia development |
| CN210376921U (en) * | 2019-09-27 | 2020-04-21 | 丹阳市俊阳光学眼镜有限公司 | Novel peripheral hyperopia defocusing control lens helpful for delaying teenager myopia progression |
| CN111103701A (en) * | 2020-01-02 | 2020-05-05 | 温州医科大学 | Spectacle lens with annulus cylindrical microstructure on surface |
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| CN114114711A (en) * | 2020-12-23 | 2022-03-01 | 东海光学株式会社 | Spectacle lens for inhibiting myopia progression |
| EP4030221A3 (en) * | 2020-12-23 | 2022-09-07 | Tokai Optical Co., Ltd. | Eyeglass lens for suppressing progression of myopia |
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