CN116400518B - Lens structure - Google Patents
Lens structure Download PDFInfo
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- CN116400518B CN116400518B CN202310339344.4A CN202310339344A CN116400518B CN 116400518 B CN116400518 B CN 116400518B CN 202310339344 A CN202310339344 A CN 202310339344A CN 116400518 B CN116400518 B CN 116400518B
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- convex lens
- lens
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- concave
- optical
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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
- G02C7/16—Shades; shields; Obturators, e.g. with pinhole, with slot
- G02C7/165—Shades; shields; Obturators, e.g. with pinhole, with slot with stenopaeic apertures
-
- 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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- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Eyeglasses (AREA)
Abstract
The invention discloses a lens structure, which comprises a concave lens and at least one convex lens, wherein the convex lens is arranged on the concave lens; the convex lens is provided with a plurality of hollowed-out holes, the hollowed-out holes are distributed on the convex lens in a dispersed manner, and the concave lens is exposed out of the hollowed-out holes; the overlapping area of the convex lens and the concave lens forms an optical defocus area, and the non-overlapping area of the convex lens and the concave lens forms an optical correction area. According to the technical scheme, the convex lenses are arranged on the concave lenses, and the hollow holes are formed in the convex lenses, so that the hollow holes are distributed on the convex lenses in a dispersed manner, the optical correction areas are staggered on the optical defocusing areas, each optical defocusing area is dispersed, and the definition can be improved while the myopia development of a user is controlled.
Description
Technical Field
The invention relates to the technical field of lenses, in particular to a lens structure.
Background
Myopia is a problem of refractive imbalance common to the human eye, typically developed when the size/length of the eye grows beyond the focal length of the optical portion of the eye, in which case an optical image is formed in front of the retina, when defocus is positive, known as myopic defocus. The human eye has a feedback mechanism that regulates the growth of the eye, which allows an optimal balance between the size/length of the eye and the focal length of the optical portion of the eye, known as orthoscopy. When myopic defocus decreases, the operation of the orthoscopic mechanism delays the growth of the eye in terms of size until the retina coincides with the optical image location.
The optical treatment lens on the market at present utilizes a orthographic visualization mechanism to set an optical correction area and an optical defocus area in the lens, and the optical correction area can enable an image to be correctly mapped on retina, so that a user can watch clearly; the optical defocus region forms an image in front of retina to inhibit eye growth and realize vision correction, but the image formed by the existing optical defocus region is concentrated and overlapped in front of retina to become a significant source of visual disturbance, which results in that the user cannot see the normal vision through the optical defocus region and the vision is still blurred after wearing glasses.
Disclosure of Invention
The invention mainly aims to provide a lens structure, which aims to improve definition while controlling myopia development of a user.
In order to achieve the above object, the present invention provides a lens structure, comprising:
a concave lens; and
at least one convex lens arranged on the concave lens;
the convex lens is provided with a plurality of hollowed-out holes, the hollowed-out holes are distributed on the convex lens in a dispersed manner, and the concave lens is exposed out of the hollowed-out holes;
the overlapping area of the convex lens and the concave lens forms an optical defocus area, and the non-overlapping area of the convex lens and the concave lens forms an optical correction area.
In this embodiment, the number of the convex lenses is plural, and the plurality of convex lenses includes a first convex lens, a second convex lens, a third convex lens, a fourth convex lens, and a fifth convex lens;
the fifth convex lens is positioned in the central area of the concave lens;
the fifth convex lens is circumscribed with the first convex lens, the second convex lens, the third convex lens and the fourth convex lens respectively;
the first convex lens is circumscribed with the second convex lens, the second convex lens is circumscribed with the third convex lens, and the third convex lens is circumscribed with the fourth convex lens.
In this embodiment, the concave lens, the first convex lens, the second convex lens, the third convex lens, the fourth convex lens, and the fifth convex lens are all circular.
In this embodiment, the first convex lens, the second convex lens, the third convex lens, and the fourth convex lens are inscribed in the concave lens.
In this embodiment, the diameters of the first convex lens, the second convex lens, the third convex lens, and the fourth convex lens are all larger than the diameter of the fifth convex lens.
In this embodiment, the ratio of the sum of the areas of the plurality of hollowed-out holes to the total area of the convex lens structure is 33.3% to 66.6%.
In this embodiment, the hollowed-out hole is in a circular or fan-shaped arrangement.
In this embodiment, the plurality of hollowed-out holes on the first convex lens, the second convex lens, the third convex lens, the fourth convex lens and the fifth convex lens are arranged in a polygonal shape.
In this embodiment, the diameter of the hollowed-out hole ranges from 0.5 mm to 20 mm.
In this embodiment, the convex lens has a diameter ranging from 0.5 mm to 12 cm.
The technical scheme of the invention is that the lens structure comprises a concave lens and at least one convex lens, wherein the convex lens is arranged on the concave lens; the convex lens is provided with a plurality of hollowed-out holes, the hollowed-out holes are distributed on the convex lens in a dispersed manner, and the concave lens is exposed out of the hollowed-out holes; the overlapping area of the convex lens and the concave lens forms an optical defocus area, and the non-overlapping area of the convex lens and the concave lens forms an optical correction area. So configured, because the defocused image produced by each optically defocused region in front of the retina is dispersed and blurred as compared to the focused image imaged on the retina. Therefore, it does not become a significant source of visual disturbance. The hollowed-out holes are distributed on the convex lens in a dispersing way, so that the optical correction areas are staggered on the optical defocusing areas, each optical correction area is in a regular graph, and the definition can be improved while the myopia development of a user is controlled.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of an embodiment of a lens structure according to the present invention;
FIG. 2 is a schematic view of a convex lens according to an embodiment of the present invention;
FIG. 3 is a schematic view of a concave lens according to an embodiment of the present invention;
FIG. 4 is a schematic view of a hollow hole of an embodiment of the lens structure of the present invention;
FIG. 5 is a schematic view of an embodiment of a lens structure according to the present invention before the hollow holes are formed;
fig. 6 is a schematic structural diagram of an embodiment of the lens structure according to the present invention after the hollow holes are provided.
Reference numerals illustrate:
| reference numerals | Name of the name | Reference numerals | Name of the name |
| 100 | Concave lens | 250 | Fifth convex lens |
| 210 | First convex lens | 260 | Hollow hole |
| 220 | Second convex lens | 300 | Optical correction zone |
| 230 | Third convex lens | 400 | Optical defocus region |
| 240 | Fourth convex lens |
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present invention, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, if the meaning of "and/or" is presented throughout this document, it is intended to include three schemes in parallel, taking "a and/or B" as an example, including a scheme, or B scheme, or a scheme where a and B meet simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
Myopia is a problem of refractive imbalance common to the human eye, typically developed when the size/length of the eye grows beyond the focal length of the optical portion of the eye, in which case an optical image is formed in front of the retina, when defocus is positive, known as myopic defocus. The human eye has a feedback mechanism that regulates the growth of the eye, which allows an optimal balance between the size/length of the eye and the focal length of the optical portion of the eye, known as orthoscopy. When myopic defocus, the operation of the orthoscopic mechanism delays the growth of the eye in terms of size until the retina coincides with the optical image location.
The optical treatment lens on the market at present utilizes a orthographic visualization mechanism to set an optical correction area and an optical defocus area in the lens, and the optical correction area can enable an image to be correctly mapped on retina, so that a user can watch clearly; the optical defocus region forms an image in front of retina to inhibit eye growth and realize vision correction, but the image formed by the existing optical defocus region is concentrated and overlapped in front of retina to become a significant source of visual disturbance, which results in that the user cannot see the normal vision through the optical defocus region and the vision is still blurred after wearing glasses.
Referring to fig. 1 to 6, the present invention provides a lens structure.
The lens structure comprises a concave lens 100 and at least one convex lens, wherein the convex lens is arranged on the concave lens 100; the convex lens is provided with a plurality of hollow holes 260, the plurality of hollow holes 260 are distributed on the convex lens in a dispersed manner, and the concave lens 100 is exposed from the hollow holes 260; the overlapping region of the convex lens and the concave lens 100 forms an optical defocus region 400, and the non-overlapping region of the convex lens and the concave lens 100 forms an optical correction region 300.
Specifically, the number of the hollowed-out holes 260 may be selected according to practical situations, and the number of the convex lenses may be one or more, and the shapes of the hollowed-out holes 260, the convex lenses, and the concave lenses 100 may be circular, regular patterns, irregular patterns, or the like. It will be appreciated that for myopic users, the phenomenon of myopic defocus occurs due to the fact that the focal point of the optical structure of the eye is located in front of the retina of the eye, which results in the inability of the user to see the image, when the myopic user wears the glasses, the myopic glasses can change the focal point so that the focal point is located at the retinal position of the user, which results in the user to see the image, but due to the lengthening of the eyeball, the curvature of the posterior segment increases, which results in the peripheral light focusing and the back of the retina, i.e. hyperopic defocus, which promotes the growth of the eye, and deepens myopia. The lens structure provided by the invention can assist a user to see images, generate myopia defocus in front of peripheral retina and inhibit the growth of eyes of the user, thereby achieving the effect of controlling myopia development. The diopter of the optical correction area 300 corresponds to the diopter of the myopic ametropia of the user so as to clearly project the image on the retina of the user, so that the user can clearly see the image when looking far, and the optical defocus area 400 can form the image in front of the retina of the user. And because the defocused image produced by each optical defocus region 400 in front of the retina is dispersed and blurred compared to the focused image imaged on the retina. Therefore, it does not become a significant source of visual disturbance. The hollowed-out holes 260 are distributed on the convex lens in a dispersed manner, so that the optical correction areas 300 are staggered on the optical defocus areas 400, and each optical defocus area 400 is dispersed, so that the definition can be improved while the myopia development of a user is controlled.
Referring to fig. 1 to 4, in the present embodiment, the number of the convex lenses is plural, and the plurality of convex lenses includes a first convex lens 210, a second convex lens 220, a third convex lens 230, a fourth convex lens 240, and a fifth convex lens 250; the fifth convex lens 250 is located at a central region of the concave lens 100; the fifth convex lens 250 is circumscribed with the first convex lens 210, the second convex lens 220, the third convex lens 230, and the fourth convex lens 240, respectively; the first convex lens 210 circumscribes the second convex lens 220, the second convex lens 220 circumscribes the third convex lens 230, and the third convex lens 230 circumscribes the fourth convex lens 240. It is to be understood that the number of the convex lenses is not limited to five, but may be six, seven, eight, or the like. The optical defocus region 400 is as close to the central region as possible. By providing the hollowed-out holes 260 on the first convex lens 210, the second convex lens 220, the third convex lens 230, the fourth convex lens 240 and the fifth convex lens 250, the optical defocus region 400 is not too concentrated and cannot greatly affect the sharpness of the optical correction region 300. The plurality of convex lenses should be as close to the central area of the lens structure as possible so that the convex lenses and the concave lenses 100 are overlapped to realize the defocus function and enhance the definition of the central area through the hollowed-out holes 260. In other embodiments, the first convex lens 210, the second convex lens 220, the third convex lens 230, and the fourth convex lens 240 may be disposed in an intersecting manner.
Referring to fig. 1 to 4, in the present embodiment, the concave lens 100, the first convex lens 210, the second convex lens 220, the third convex lens 230, the fourth convex lens 240, and the fifth convex lens 250 are all circular. In other embodiments, the concave lens 100, the first convex lens 210, the second convex lens 220, the third convex lens 230, the fourth convex lens 240, and the fifth convex lens 250 may be arranged in an elliptical shape. Alternatively, in other embodiments, the concave lens 100, the first convex lens 210, the second convex lens 220, the third convex lens 230, the fourth convex lens 240, and the fifth convex lens 250 may be disposed in a shape of a rectangle with rounded corners.
Referring to fig. 1, in the present embodiment, the first convex lens 210, the second convex lens 220, the third convex lens 230, and the fourth convex lens 240 are inscribed with the concave lens 100. As such, since the first convex lens 210, the second convex lens 220, the third convex lens 230, and the fourth convex lens 240 are also circumscribed with the fifth convex lens 250, the diameters of the first convex lens 210, the second convex lens 220, the third convex lens 230, and the fourth convex lens 240 are all the same. Of course, in other embodiments, the first convex lens 210, the second convex lens 220, the third convex lens 230, and the fourth convex lens 240 may not extend beyond the edge of the concave lens 100 or may extend beyond the edge of the concave lens 100.
Referring to fig. 1 and 2, in the present embodiment, the diameters of the first convex lens 210, the second convex lens 220, the third convex lens 230, and the fourth convex lens 240 are larger than the diameter of the fifth convex lens 250. Of course, the diameters of the first convex lens 210, the second convex lens 220, the third convex lens 230, and the fourth convex lens 240 may be equal to the diameter of the fifth convex lens 250.
Referring to fig. 1, in order to improve the definition of the lens structure, in this embodiment, the ratio of the sum of the areas of the plurality of hollowed-out holes 260 to the total area of the convex lens structure is 33.3% to 66.6%. It will be appreciated that fig. 4 shows the sum of the areas of the hollowed-out holes 260 on the convex lens, and the sum of the areas accounts for 33.3% to 66.6% of the total convex lens structure. For example: the ratio of the sum of the areas of the plurality of hollowed-out holes 260 to the total area of the convex lens structure is 60.0%.
Referring to fig. 1 and 4, the hollowed-out hole 260 may be rectangular, square, circular, oval, fan-shaped, regular or irregular. In this embodiment, the hollowed-out hole 260 is circular or fan-shaped.
With continued reference to fig. 1 and 4, the plurality of hollowed-out holes 260 may be arranged in a circular arrangement, a square array arrangement, or other irregularly shaped arrangement. In this embodiment, the plurality of hollowed-out holes 260 on the first convex lens 210, the second convex lens 220, the third convex lens 230, the fourth convex lens 240 and the fifth convex lens 250 are arranged in a polygonal shape. For example: regular hexagons.
With continued reference to fig. 1 and 4, in this embodiment, the hollow hole 260 has a diameter ranging from 0.5 mm to 20 mm. The diameter of the hollowed-out hole 260 is selected according to the diameter of the convex lens. The larger the diameter of the hollow holes 260, the larger the spacing between the respective hollow holes 260; the smaller the diameter of the hollowed-out holes 260, the smaller the spacing between the hollowed-out holes 260.
Referring to fig. 1, in the present embodiment, the diameter of the convex lens ranges from 0.5 mm to 12 cm. When the number of the convex lenses is one, the diameter of the convex lenses may be the same as that of the concave lenses 100, so that the concave lenses 100 may be displayed on the hollowed holes 260 by punching the hollowed holes 260 on the convex lenses, optical correction is achieved, and myopia development is controlled through the optical defocus region 400.
The foregoing description is only of the optional embodiments of the present invention, and is not intended to limit the scope of the invention, and all the equivalent structural changes made by the description of the present invention and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the invention.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310339344.4A CN116400518B (en) | 2023-03-27 | 2023-03-27 | Lens structure |
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|---|---|---|---|
| CN202310339344.4A CN116400518B (en) | 2023-03-27 | 2023-03-27 | Lens structure |
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| CN116400518A CN116400518A (en) | 2023-07-07 |
| CN116400518B true CN116400518B (en) | 2024-01-05 |
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| CN116400518A (en) | 2023-07-07 |
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