Optical lens for preventing and controlling juvenile myopia

Abstract

The utility model discloses an optical lens for preventing and controlling myopia of teenagers, which comprises a lens body, an optical area is arranged at the center of a light inlet surface of the lens body, an out-of-focus area is arranged around the optical area, the out-of-focus area is provided with a microstructure formed by a curve or a pattern, the out-of-focus area comprises a bitamporal area and a nasal area, and the bitamporal area and the nasal area are arranged in the lens body. The microstructure pattern in the bitamporal region is formed by adopting a fractal curve or a fractal pattern structure, and the microstructure pattern in the nasal region is formed by adopting an arc curve or a Bezier curve structure. According to the utility model, the distribution of optical focuses is increased by the microstructure pattern of the bitamporal region through a complex curve, so as to adapt to the dynamic vision requirement. Distortion and visual fatigue are reduced by the microstructure patterns of the nasal side area through a smooth curve, so that the wearing comfort is improved, and the visual fatigue is effectively relieved.

Description

Technical Field

[0001] This invention relates to the field of optical lens technology, specifically to an optical lens for myopia prevention and control in adolescents. Background Technology

[0002] A large number of teenagers are nearsighted, and they often rely on wearing glasses for work and daily life. However, wearing traditional glasses often leads to a continuous increase in the degree of nearsightedness.

[0003] Chinese invention patent CN117170117B discloses a myopia control lens with fractal microstructures. This lens substrate includes an optical zone and a control zone, with the control zone surrounding the central optical zone. The control zone features microstructures constructed from fractal curves or patterns on the lens substrate plane, or microstructures constructed from fractal curves or patterns between the lens substrate layers. This design aims to maximize the complexity of the peripheral microstructures, thereby increasing the degree of optical disturbance and thus interfering with the progression of myopia.

[0004] However, the nasal side of the human eye has a narrower field of vision and less eye movement, while the temporal side has a wider field of vision and more eye movement. In the above-mentioned scheme, the control area surrounds the outer side of the central optical area and uses the same fractal curve or fractal pattern, which requires further improvement in terms of wearing comfort and reducing visual fatigue. Utility Model Content

[0005] To address the aforementioned shortcomings, the technical problem to be solved by this invention is to provide an optical lens for myopia prevention and control in adolescents, thereby solving the problem that the existing technology needs further improvement in terms of wearing comfort and relieving visual fatigue.

[0006] Therefore, a first aspect of this application provides an optical lens for myopia prevention and control in adolescents, comprising a lens body, an optical zone at the center of the light-receiving surface of the lens body, and a defocus zone surrounding the optical zone, the defocus zone having a microstructure formed by curves or patterns, the defocus zone comprising:

[0007] The temporal region contains microstructural patterns constructed using fractal curves or fractal patterns.

[0008] The microstructural patterns in the nasal lateral region are formed using arc curves or Bézier curves.

[0009] Based on the above technical solutions, this application divides the defocus area on the lens into a nasal side area and a temporal side area. The microstructure pattern of the temporal side area still adopts fractal curves or fractal patterns, and the distribution of optical focus is increased through complex curves to adapt to dynamic visual needs. The microstructure pattern of the nasal side area adopts arc curves or Bezier curves, and the smooth curves reduce distortion and visual fatigue, thereby improving wearing comfort and effectively relieving visual fatigue.

[0010] In the above technical solution, preferably, the nasal lateral region is one-quarter of the defocused region, and the remaining part of the defocused region is the temporal lateral region. This implementation simplifies the shape division of the nasal lateral region and facilitates manufacturing.

[0011] In the above technical solution, preferably, the microstructures on the temporal side are formed using a Hilbert curve, and the microstructures on the nasal side are formed using a circular arc curve. The circular arc curve is simpler and easier to manufacture while achieving the same function.

[0012] In the above technical solution, preferably, a coating is provided on the light-gathering surface of the lens body to reduce edge distortion and provide a more natural visual experience.

[0013] In the above technical solution, preferably, the lens body can adopt a gradient curvature structure, with the curvature changing smoothly from the center to the edge of the lens body.

[0014] As can be seen from the above technical solution, the optical lens for myopia prevention and control in teenagers provided by this utility model solves the problems that need further improvement in terms of wearing comfort and relieving visual fatigue in existing technologies. Compared with the prior art, this utility model has the following beneficial effects:

[0015] The lens body features an optical zone at the center of its light-gathering surface to correct refractive errors; surrounding this zone is a defocus zone for correcting myopia. The defocus zone is divided into nasal and temporal areas. The microstructural pattern in the temporal area still employs fractal curves or patterns, using complex curves to increase the distribution of optical focus and adapt to dynamic visual needs. The microstructural pattern in the nasal area uses circular or Bezier curves, smoothing the curves to reduce distortion and visual fatigue, thereby improving wearing comfort and effectively relieving visual strain. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments of this utility model or the prior art will be briefly introduced and explained below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of an optical lens for myopia prevention and control in teenagers provided by this utility model.

[0018] The correspondence between the parts in the diagram is as follows:

[0019] Lens body 10, optical zone 20, defocus zone 30;

[0020] Nasal region 31, temporal region 32. Detailed Implementation

[0021] Existing optical lenses for myopia control in teenagers have a control zone surrounding the central optical zone on the substrate. The control zone has microstructures constructed from fractal curves or fractal patterns. By increasing the complexity of the surrounding microstructures, the degree of optical disturbance is enhanced, thereby interfering with the progression of myopia.

[0022] However, since the human eye has a narrower nasal field of vision and less eye movement, while the human eye has a larger temporal field of vision and more eye movement, the above schemes use the same fractal curve or fractal pattern in the control area, and there is still room for improvement in terms of wearing comfort and visual fatigue.

[0023] This application makes further improvements based on the above technical solution, dividing the defocus area on the lens into a nasal side area and a temporal side area. The microstructure pattern of the temporal side area still adopts fractal curves or fractal patterns, and the distribution of optical focus is increased through complex curves to adapt to dynamic visual needs. The microstructure pattern of the nasal side area adopts arc curves or Bezier curves, and the smooth curves reduce distortion and visual fatigue, thereby improving wearing comfort and effectively relieving visual fatigue.

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the embodiments described below are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] To provide a clearer explanation and description of the technical solution and implementation of this utility model, several preferred specific embodiments for implementing the technical solution of this utility model are introduced below.

[0026] It should be noted that the directional terms such as "inner" and "outer", "front" and "back" and "left" and "right" in this article are based on the product's usage status. Obviously, the use of these directional terms does not limit the scope of protection of this solution.

[0027] like Figure 1 As shown, this utility model provides an optical lens for myopia prevention and control in teenagers, including a lens body 10. An optical zone 20 is provided at the center of the light-receiving surface of the lens body 10, and a defocusing zone 30 is provided around the optical zone 20. The optical zone 20 is circular, and the defocusing zone 30 is annular.

[0028] Optical zone 20 employs a smooth lens structure to correct refractive errors. Specifically, light passing through optical zone 20 forms a clear image on the retina, enabling the patient to see clearly and perform daily activities.

[0029] The defocus zone 30 has microstructures formed by curves or patterns, which can defocus light rays that obliquely enter the lens to correct myopia. Specifically, by focusing parallel light rays about to enter the lens of the eye in front of the retina, these light rays are discrete when they reach the retina and cannot form an image on or behind the retina, thereby inhibiting axial expansion. At the same time, it can also drive the axial length to shorten so that the defocused light rays can focus on the retina, thus achieving the purpose of correcting myopia.

[0030] In this application, the defocus area 30 is divided into the nasal side area 31 and the temporal side area 32. The nasal side area 31 is the area where the lens is adjacent to the nose when worn, and the remaining part of the defocus area 30 is the temporal side area 32.

[0031] The microstructural pattern on the temporal region 32 is constructed using fractal curves or fractal patterns. The complex curves increase the distribution of optical focus to adapt to dynamic visual needs. The microstructural pattern on the nasal region 31 is constructed using arc curves or Bezier curves. The smooth curves reduce distortion and visual fatigue, improve wearing comfort, and effectively relieve visual fatigue.

[0032] In this embodiment, the nasal side region 31 is one-quarter of the defocus region 30, and the remaining part of the defocus region 30 is the temporal side region 32.

[0033] In one embodiment, the microstructures on the temporal region 32 are constructed using Hilbert curves, and the microstructures on the nasal region 31 are constructed using circular arc curves or Bezier curves.

[0034] Furthermore, the present application can also coat the light-gathering surface of the lens body 10 with a film to completely cover the optical zone 20 and the defocus zone 30, so as to reduce edge distortion and provide a more natural visual experience.

[0035] In this application, the lens body 10 may adopt a gradient curvature structure, and the curvature of the lens body 10 changes smoothly from the center to the edge.

[0036] Based on the above description of specific embodiments, the optical lens for myopia prevention and control in adolescents provided by this utility model has the following advantages compared with the prior art:

[0037] First, the defocus area is divided into the nasal and temporal regions. The microstructural patterns on the temporal region are constructed using fractal curves or fractal patterns, which increase the distribution of optical focus through complex curves to adapt to dynamic visual needs. The microstructural patterns on the nasal region use arc curves or Bezier curves, which reduce distortion and visual fatigue through smooth curves, improve wearing comfort, and effectively relieve visual fatigue.

[0038] Second, the nasal lateral region is one-quarter of the defocused region, and the remaining part of the defocused region is the temporal lateral region, which simplifies the shape of the nasal lateral region and facilitates processing and manufacturing.

[0039] Third, the light-gathering surface of the lens body is coated to completely cover the optical and defocus areas in order to reduce edge distortion and provide a more natural visual experience.

[0040] Finally, it should be noted that the terms "comprising," "including," or any other variations thereof as used herein are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a…" does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0041] This utility model is not limited to the above-described preferred embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model.

Claims

1. An optical lens for myopia prevention and control in adolescents, comprising a lens body, wherein an optical zone is provided at the center of the light-receiving surface of the lens body, and a defocusing zone is provided around the optical zone, wherein the defocusing zone has a microstructure formed by curves or patterns, characterized in that, The defocused area includes: The temporal region contains microstructural patterns constructed using fractal curves or fractal patterns. The microstructural patterns in the nasal lateral region are formed using arc curves or Bézier curves; The nasal lateral region is one-quarter of the defocused region, and the remaining part of the defocused region is the temporal lateral region; The microstructures on the temporal region are formed using Hilbert curves, and the microstructures on the nasal region are formed using circular arc curves.

2. The optical lens for myopia prevention and control in adolescents according to claim 1, characterized in that, The light-gathering surface of the lens body is coated with a layer of film.

3. The optical lens for myopia prevention and control in adolescents according to claim 1, characterized in that, The lens body adopts a gradient curvature structure, with the curvature changing smoothly from the center to the edge of the lens body.

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