CN110554517A - Lens using clear zone to increase defocused image range - Google Patents
Lens using clear zone to increase defocused image range Download PDFInfo
- Publication number
- CN110554517A CN110554517A CN201810572041.6A CN201810572041A CN110554517A CN 110554517 A CN110554517 A CN 110554517A CN 201810572041 A CN201810572041 A CN 201810572041A CN 110554517 A CN110554517 A CN 110554517A
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- lens
- area
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- clear
- central
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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
Abstract
The invention relates to a lens for increasing defocused image range by using a clear area, wherein the surface of the lens is provided with a central optical area for light to pass through to form an image on a central clear image area of retina of an eyeball, and a peripheral optical area for forming an image on a peripheral defocused image area around the central clear image area is surrounded at the periphery of the central optical area, wherein the surface of the central optical area is provided with a clear area which is approximately elliptical and is used for light to pass through to form a clear image on the central clear image area, and a defocused area is formed at the position outside the clear area, so that the defocused image range formed in the central clear image area can be increased by using the defocused area to increase the range of an optical area with defocused function on the retina, and the function of controlling myopic degree can exist on the premise of not increasing the defocused degree of the lens, so that when the light passes through the defocused area, the light is focused in front of the retina, so as to effectively delay or prevent the myopic deviation degree from increasing.
Description
Technical Field
The invention relates to a lens for increasing defocused image range by using a clear area, in particular to a lens, wherein the surface of a central optical area of the lens is provided with a clear area which enables light to pass through the clear area clearly imaged on the central clear image area of retina, and an defocus area for increasing the defocused image range in the central clear image area is formed at the position outside the clear area, so that the myopic degree can be delayed and deepened by the defocus area.
Background
recently, in order to solve the problem of myopia, most of the myopic lenses are used for wearing myopic glasses, wearing myopic contact lenses, performing corneal myopic surgery or wearing corneal remodelling lens correction, however, in order to effectively control the increase of the myopic power, some manufacturers have developed peripheral defocus lenses, which mainly have the principle that the diopter (diopter) gradually decreases from the center to the periphery, so that when light passes through the lens, the focus of the central area falls on the retina, and the focus of the peripheral area falls in front of the retina, so as to reduce the peripheral hyperopic defocus, and control the over-elongation of the axis of the eye, thereby slowing down the myopia progression speed and effectively controlling the peripheral vision correction.
However, the initial wearing of the peripheral defocus lens requires a short adaptation period, and if the peripheral diopter is reduced too much, the defocus degree is too much, thereby affecting the vision of the central vision, so that the wearing comfort is affected, and even the safety of the wearer is affected.
Therefore, how to try to solve the above-mentioned shortcomings and inconveniences of the prior art is a direction in which those skilled in the art are keenly interested to research and improve.
Disclosure of Invention
The main objective of the present invention is to form a central optical area on the surface of the lens for light to pass through for imaging on the central clear image area of the retina of the eyeball, and a peripheral optical area around the central optical area for imaging on the peripheral defocus image area around the central clear image area, wherein the surface of the central optical area of the lens is provided with a clear area which is approximately elliptical and for light to pass through for clear imaging on the central clear image area, and a defocus area for defocusing imaging in the central clear image area is formed at the position outside the clear area, so that the defocus area can be used to increase the overall defocus image range, so as to effectively utilize the original space of the central optical area to increase the defocus image range on the retina of the eyeball, the elliptical clear area can ensure that the eyeball can keep clear vision when moving in the horizontal direction during reading, and the parts outside of the horizontal direction are less used during reading, therefore, the range of defocused images is enlarged, the range of an optical area with a defocusing effect on the retina is enlarged, light rays pass through the defocused area and are focused in front of the retina, the ciliary muscle is relaxed to flatten the crystalline lens, the ciliary muscle of the eyeball is relaxed through the defocused area, the ciliary muscle is prevented from being in a tight spasm state for a long time, the elongation of the axis of the eye is further prevented, the deviation degree of the myopia is effectively delayed or prevented from being deepened, and the purpose of correcting and improving the myopia is achieved.
The secondary objective of the present invention is to provide the lens with a plurality of convex portions, wherein the corners of the ends of the convex portions are arc-shaped, so that when the lens is worn on the eyeball, the wearer does not feel a sharp foreign body sensation through the arc-shaped corners, thereby achieving the purpose of improving wearing comfort.
Drawings
Fig. 1 is a schematic plan view of the present invention.
Fig. 2 is a schematic diagram of the optical path of the present invention.
Fig. 3 is a schematic view of an image of a retina according to the present invention.
List of reference numerals: 1-a lens; 11-outer surface; 12-an inner surface; 13-a central optical zone; 131-clear area; 1311-protrusions; 1312-corners; 132-a defocus region; 14-a peripheral optical zone; 15-a positioning part; 2-eyeball; 21-the retina; 211-central sharp image area; 2111 — clear image; 2112 — second defocused image; 212-peripheral out-of-focus image area; 2121-first defocused image; 22-pupil; 23-the ciliary muscle; 24-crystalline.
Detailed Description
Referring to fig. 1, 2 and 3, a lens 1 (which may be a contact lens 1 or a frame lens 1) of the present invention includes an outer surface 11 and an inner surface 12, and a central optical zone 13 formed on the outer surface 11 and the inner surface 12 for passing light therethrough to form an image on a central clear image area 211 of a retina 21 of an eyeball 2, the central optical zone 211 being a central fovea (fovea) of the retina 21, wherein the surface of the central optical zone 13 is provided with a clear zone 131 having a non-circular shape (approximately an elliptical shape), the clear zone 131 has a plurality of convex portions 1311 extending horizontally to the periphery of the central optical zone 13, and an arc-shaped corner 1312 is formed at the end of each convex portion 1311, the central optical zone 13 forms a defocus area 132 outside the clear zone 131, and a peripheral defocus image area 212 formed around the central clear image area 211 is a peripheral near fovea (fovea) area 212 around the central fovea The optical zone 14 is further provided with a positioning part 15 on the surface of the lens 1 for preventing the lens 1 from rotating.
The clear area 131 and the defocus area 132 of the central optical area 13 are preferably formed on the outer surface 11 of the lens 1, but in practice, the lens 1 may have the clear area 131 and the defocus area 132 formed on the inner surface 12, or both the clear area 131 and the defocus area 132 formed on the outer surface 11 and the inner surface 12.
Furthermore, the clear area 131 of the central optical area 13 has a plurality of protrusions 1311 extending in a horizontal direction, so that when the pupil 22 of the eyeball 2 is viewed and browsed in the horizontal direction by the plurality of protrusions 1311, a clear visual image can be formed on the retina 21, i.e. the requirement of the wearer for a clear visual image can be ensured by the plurality of protrusions 1311 of the clear area 131 (e.g. in reading, the eyeball 2 needs to browse characters in the horizontal direction, and can meet reading requirement by the plurality of protrusions 1311), and the part of the wearer that does not need to use the clear visual image can be used as the defocus area 132 of the central optical area 13 (e.g. in reading, the part except the horizontal direction is less used, i.e. can be used as the defocus area 132 to increase the defocus image range), thereby increasing the defocus optical area range on the retina 21, on the premise of not increasing the defocus degree of the lens 1, the function of controlling the myopic degree still exists, so that the defocus degree can be reduced, and the vision of the central vision field is prevented from being influenced by too high defocus degree.
However, the refractive powers of the defocus area 132 of the central optical area 13 and the peripheral optical area 14 are smaller than the refractive power of the clear area 131 of the central optical area 13, so that the lens 1 can have a peripheral defocus function, and the refractive power of the defocus area 132 is preferably equal to the refractive power of the peripheral optical area 14.
In addition, if the lens 1 is a contact lens type, the positioning portion 15 of the lens 1 can be preferably disposed at the periphery of the inner surface 12, so as to avoid affecting the disposition of the central optical zone 13 and the peripheral optical zone 14, and further facilitate the processing and forming of the central optical zone 13 and the peripheral optical zone 14, but in practical applications, the positioning portion 15 can also be disposed at the outer surface 11 of the lens 1, or disposed at both the outer surface 11 and the inner surface 12; the design of the positioning portion 15 is to thin the upper and lower edges of the inner surface 12 to form a limiting groove (not shown) on the upper and lower edges, respectively, so that the lens 1 can be stably fixed on the eyeball 2 through a plurality of limiting grooves and can be prevented from rotating, however, the structure of the lens 1 on the eyeball 2 is very numerous, so the structure capable of achieving the aforementioned effects is covered by the present invention, and such simple modification and equivalent structural changes are included in the patent scope of the present invention in the same way and are well shown; if the lens 1 is of a frame type, the positioning portion 15 can be a frame to be worn and positioned on the face.
When the present invention is actually used, the lens 1 can be worn on the eyeball 2, and the positioning portion 15 is used to position on the eyeball 2, so as to prevent the lens 1 from easily rotating on the eyeball 2, and when the light passes through the central optical area 13 and the peripheral optical area 14 of the lens 1, light rays passing through peripheral optical zone 14 image a first defocused image 2121 in peripheral out-of-focus image zone 212 of retina 21 (as shown in fig. 3), and as light rays pass through central optical zone 13, light passing through the clear zone 131 of the central optical zone 13 will image a clear image 2111 in the central clear image zone 211 of the retina 21, light passing through the defocus region 132 of the central optical zone 13 forms a second defocused image 2112 in an area outside the clear image 2111 of the central clear image region 211, thereby expanding the defocused image area on the retina 21 through the defocus region 132.
When the eyeball 2 of the wearer browses objects in the horizontal direction, the clear image 2111 is formed in the central clear image area 211 through the plurality of convex parts 1311 of the clear area 131, so that the objects can be browsed clearly in the horizontal direction, the light passing through the defocus area 132 generates the second defocused image 2112, the range of the defocused image can be expanded through the second defocused image 2112, so that the optical area range with defocusing on the retina 21 is increased, and the function of controlling the myopic degree can still exist without increasing the defocused degree of the lens 1, so that the required defocused degree can be reduced, the possibility of influencing the central vision due to the excessive defocused degree is reduced, the ciliary muscle 23 of the eyeball 2 is relaxed through the low defocus area 132 with diopter to reduce accommodation, the crystalline lens 24 is flattened, and the image of the peripheral optical area 14 can also fall on the retina 21, so as to prevent the ciliary muscle 23 on the eyeball 2 from being in a tight spasm state for a long time, thereby preventing the elongation of the axis of the eyeball, and effectively delaying or preventing the myopic deviation degree from being deepened, thereby achieving the effect of correcting and improving the myopia.
The invention has the following advantages:
The central optical zone 13 of the lens 1 is designed to have a defocus area 132 outside the clear area 131, so as to effectively utilize the original space of the central optical zone 13 to expand the defocused image range on the retina 21 of the eyeball 2, because the range of the defocused image is enlarged, the range of the optical area with the defocusing function on the retina 21 is increased, the function of controlling the myopic degree can still exist on the premise of not increasing the defocused degree of the lens 1, the required defocused degree can be reduced, thereby reducing the possibility of the central visual field vision being affected by the excessive defocus, and the ciliary muscle 23 of the eyeball 2 can be relaxed through the defocus area 132 to avoid the ciliary muscle 23 being in a tight spasm state for a long time, thereby preventing the elongation of the axis of the eye, effectively delaying or preventing the myopic deviation degree from being deepened, and achieving the effect of correcting and improving the myopia.
Secondly, the plurality of convex parts 1311 of the clear zone 131 are formed with arc-shaped corners 1312 at the ends, and the corners 1312 are arc-shaped, so that when the lens 1 is used as the lens 1 of the contact lens and worn on the eyeball 2, no sharp foreign body sensation is felt, and the wearing comfort is improved.
In summary, the present invention applies the clear area to increase the scope of defocused images in practical application and implementation, so as to achieve the efficacy and purpose thereof, the present invention is a research and development with excellent practicability, and is a requirement in accordance with the patent application, and the application is laid out according to the law, and the examination of the present application is expected to be granted earlier, so as to ensure the painstaking research and development of the inventor, and if the examination of the junior has any doubt, the inventor does not ask for instructions of the original content, and the inventor is sure to be matched with the original content, so as to achieve the purpose of achieving the purpose.
Claims (10)
1. A lens for increasing the range of defocused images by using a clear zone, the lens comprising an outer surface and an inner surface, wherein a central optical zone for light to pass through for imaging on the central clear image zone of the retina of an eyeball is formed on the outer surface and the inner surface, and a peripheral optical zone for imaging on the peripheral out-of-focus image zone around the central clear image zone is surrounded around the central optical zone, the lens characterized in that:
The surface of the central optical area of the lens is provided with a clear area which leads light to pass through so as to be clearly imaged on the central clear image area of the retina, the part outside the clear area is provided with a defocusing area which is used for increasing the defocusing image range in the central clear image area, and the surface of the lens is provided with a positioning part which prevents the lens from rotating.
2. The lens of claim 1, wherein the clear zone of the central optical zone is elliptical in shape.
3. The lens of claim 1, wherein the clear zone and the defocus zone of the central optical zone are disposed at an outer surface of the lens.
4. The lens of claim 1, wherein the clear zone and the defocus zone of the central optical zone are disposed at an inner surface of the lens.
5. The lens of claim 1, wherein the outer surface and the inner surface of the lens are both provided with the clear zone and the defocus zone.
6. The lens of claim 1, wherein the clear zone of the central optical zone has a plurality of protrusions extending in a horizontal direction.
7. The lens of claim 6, wherein the plurality of protrusions of the clear zone extend to the periphery of the central optical zone.
8. The lens of claim 1, wherein the plurality of protrusions of the clear area have rounded corners.
9. The lens for increasing the range of defocused images using a clear zone of claim 1, wherein the refractive power of the defocus zone of the central optical zone and the peripheral optical zone is less than the refractive power of the clear zone, and the refractive power of the defocus zone is equal to the refractive power of the peripheral optical zone.
10. The lens of claim 1, wherein the positioning portion of the lens is formed at an edge of an inner surface of the lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810572041.6A CN110554517B (en) | 2018-05-31 | 2018-05-31 | Lens using clear zone to increase defocused image range |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810572041.6A CN110554517B (en) | 2018-05-31 | 2018-05-31 | Lens using clear zone to increase defocused image range |
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| Publication Number | Publication Date |
|---|---|
| CN110554517A true CN110554517A (en) | 2019-12-10 |
| CN110554517B CN110554517B (en) | 2021-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810572041.6A Active CN110554517B (en) | 2018-05-31 | 2018-05-31 | Lens using clear zone to increase defocused image range |
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Citations (7)
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|---|---|---|---|---|
| US20080084534A1 (en) * | 2006-10-10 | 2008-04-10 | Joseph Michael Lindacher | Lens having an optically controlled peripheral portion and a method for designing and manufacturing the lens |
| US20110051079A1 (en) * | 2008-04-18 | 2011-03-03 | Aldo Abraham Martinez | Myopia control means |
| CN101675372B (en) * | 2007-03-09 | 2012-12-26 | 奥克兰联合服务有限公司 | Contact lens and method |
| CN202870411U (en) * | 2012-11-08 | 2013-04-10 | 上海康耐特光学股份有限公司 | Eyeglasses lenses |
| CN204422891U (en) * | 2015-03-09 | 2015-06-24 | 河北源点光学仪器有限公司 | A kind of myopia progression controlling periphery out of focus controls glasses |
| CN107664854A (en) * | 2016-07-27 | 2018-02-06 | 亨泰光学股份有限公司 | The moire processing method and construction of glasses |
| CN208969366U (en) * | 2018-05-31 | 2019-06-11 | 亨泰光学股份有限公司 | Increase the eyeglass for defocusing image capturing range using circle of good definition |
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2018
- 2018-05-31 CN CN201810572041.6A patent/CN110554517B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080084534A1 (en) * | 2006-10-10 | 2008-04-10 | Joseph Michael Lindacher | Lens having an optically controlled peripheral portion and a method for designing and manufacturing the lens |
| CN101675372B (en) * | 2007-03-09 | 2012-12-26 | 奥克兰联合服务有限公司 | Contact lens and method |
| US20110051079A1 (en) * | 2008-04-18 | 2011-03-03 | Aldo Abraham Martinez | Myopia control means |
| CN202870411U (en) * | 2012-11-08 | 2013-04-10 | 上海康耐特光学股份有限公司 | Eyeglasses lenses |
| CN204422891U (en) * | 2015-03-09 | 2015-06-24 | 河北源点光学仪器有限公司 | A kind of myopia progression controlling periphery out of focus controls glasses |
| CN107664854A (en) * | 2016-07-27 | 2018-02-06 | 亨泰光学股份有限公司 | The moire processing method and construction of glasses |
| CN208969366U (en) * | 2018-05-31 | 2019-06-11 | 亨泰光学股份有限公司 | Increase the eyeglass for defocusing image capturing range using circle of good definition |
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| Publication number | Publication date |
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| CN110554517B (en) | 2021-04-30 |
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