A contrast-adjusted myopia-correcting lens

Abstract

The utility model provides a kind of myopia correction lens of adjusting contrast, including lens body, one side of the lens body is lens convex surface, the other side of lens convex surface is lens concave surface, the middle part of lens convex surface is central main viewing area, the surface of lens convex surface is equipped with composite ring channel, the surface of lens concave surface is equipped with microporous defocus area, the composite ring channel includes microlens and microcylindrical lens. In the utility model, composite ring channel is connected with microcylindrical lens by microlens and orderly arranged, the myopia defocus signal and high-order aberration signal generated by the combination of microlens and microcylindrical lens, both have enough myopia defocus amount, and reduce the discomfort caused by high defocus, spherical-cylindrical joint technology makes the myopia defocus signal form in front of retina, and the defocus amount of microlens in composite ring channel gradually increases from middle to periphery, to achieve the effect of delaying myopia development.

Description

Technical Field

[0001] This utility model relates to the field of eyeglass lens technology, and in particular to a myopia correction lens with adjustable contrast. Background Technology

[0002] The increasing reliance on electronic devices has contributed to the development and progression of myopia. Combined with factors such as poor ambient lighting, small or blurry text, and lack of outdoor activities, the incidence of myopia is rising. Traditional myopia lenses are mostly single-vision lenses, which often result in inaccurate focusing, especially in myopic children when viewing objects at close range. While using optical lenses that incorporate optical elements to focus images outside the retina has shown good results in preventing and slowing the development of abnormal refractive errors, the use of such lenses may have some drawbacks. Utility Model Content

[0003] To address the aforementioned problems, this invention proposes a contrast-adjustable myopia correction lens to more accurately resolve these issues.

[0004] This utility model is achieved through the following technical solution: This invention proposes a contrast-adjustable myopia correction lens, comprising a lens body, one side of which is a convex surface and the other side of which is a concave surface. The central main viewing area is located in the middle of the convex surface. A composite ring channel is provided on the surface of the convex surface, and a micro-aperture defocusing area is provided on the surface of the concave surface. The composite ring channel includes microlenses and microcylinders. The composite ring channel is formed by a ring array of microlenses, and microcylinders are connected to each microlens in each composite ring channel. The microlenses and microcylinders are interconnected and arranged in an orderly manner. The micro-aperture defocusing area is formed by a ring array of dot-shaped concave curved surfaces. The micro-aperture defocusing area has several channels and is arranged radially and periodically in a concentric circle on the convex surface of the lens. The micro-aperture defocusing area is located in the interval area of ​​the composite ring channel.

[0005] Furthermore, the central main viewing area is a single-vision lens with a prescription power and a diameter of 7mm.

[0006] Furthermore, the composite ring channel has several channels arranged radially and periodically in a concentric circle on the convex surface of the lens, the microlens spacing is consistent with the light intensity of the central main viewing area, and the light added to each convex surface of the lens is the same.

[0007] Furthermore, the microlenses in each of the composite ring channels on the convex surface of the lens gradually increase the defocusing amount from the center to the periphery, with the defocusing power varying from +3.00 to +4.50D.

[0008] Furthermore, the surface profile of the microlens is rotationally symmetric and is spherical or aspherical; the surface profile of the microcylinder is torus or hypertorus; and the surface profile of the microcylinder is torus or hypertorus.

[0009] Furthermore, the diameter of the point-like concave curved surfaces in the microporous defocusing area is 0.15 mm, and the depth of the diffusion points is 0.15-0.6 mm.

[0010] The beneficial effects of this utility model are: 1. In this utility model, the composite channel is interconnected and arranged in an orderly manner by microlenses and microcylinders. The myopic defocus signal and higher-order aberration signal generated by the combination of microlenses and microcylinders have both sufficient myopic defocus amount and reduce the discomfort caused by high defocus. The spherical-cylinder combination technology makes myopic defocus signal formed in front of the retina, and the microlenses in the composite channel gradually increase the defocus amount from the center to the periphery, so as to achieve the effect of delaying the development of myopia. 2. The micro-hole defocus area in this utility model is composed of dot-shaped concave curved surfaces arranged in a ring array. Each dot-shaped concave curved surface has micro-transmittance of light, which can simulate the visual signal of myopic defocus on the retina, reduce the imaging contrast of the peripheral retina, and provide low-contrast peripheral vision. Attached Figure Description

[0011] Figure 1 This is a first three-dimensional structural diagram of the present invention; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 This is a schematic diagram of the second three-dimensional structure of the present invention; Figure 4 This is a cross-sectional view of the structure of this utility model; Figure 5 for Figure 4 Enlarged view of point B in the middle.

[0012] In the diagram: 1. Lens body; 101. Convex lens surface; 102. Concave lens surface; 103. Central main viewing area; 104. Compound ring channel; 1041. Microlens; 1042. Microcylindrical lens; 105. Micro-aperture defocus area. Detailed Implementation

[0013] 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 described embodiments 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. Example 1

[0014] A contrast-adjustable myopia correction lens includes a lens body 1, one side of which is a convex surface 101. The center of the convex surface 101 is a central primary visual area 103. The central primary visual area 103 is a single-vision lens with a prescription power. The diameter of the central primary visual area 103 is 7mm. The aspherical design of the central primary visual area 103 can provide clear "farsightedness" and provide clear, high-contrast central vision.

[0015] The surface of the convex surface 101 of the lens is provided with a compound ring channel 104, which includes microlenses 1041 and microcylinders 1042. The compound ring channel 104 is formed by the microlenses 1041 arranged in a ring array. The compound ring channel 104 has several channels and is arranged radially and periodically in a concentric circle on the convex surface 101 of the lens. The spacing of the microlenses 1041 is consistent with the light power of the central main viewing area 103. The light input of each convex surface 101 of the lens is the same. Each microlens 1041 provided on each compound ring channel 104 is connected to a microcylinder 1042. The microlenses 1041 and microcylinders 1042 are interconnected and arranged in an orderly manner. The myopic defocus signal and higher-order aberration signal generated by the combination of microlenses 1041 and microcylinders 1042 have both sufficient myopic defocus amount and reduce the discomfort caused by high defocus.

[0016] The microlenses 1041 in each composite ring channel 104 on the convex surface 101 of the lens gradually increase the defocus from the center to the periphery, with the defocus power varying from +3.00 to +4.50D, thus achieving the effect of delaying the progression of myopia. The surface shape of the microlens 1041 is rotationally symmetric, and the surface shape is spherical or aspherical. The surface shape of the microcylinder 1042 is torus or hypertorus.

[0017] The technical solutions in the above embodiments of this application have at least the following technical effects or advantages: In this utility model, the composite channel 104 is interconnected and arranged in an orderly manner by microlenses 1041 and microcylinders 1042. The myopic defocus signal and higher-order aberration signal generated by the combination of microlenses 1041 and microcylinders 1042 have sufficient myopic defocus amount and reduce the discomfort caused by high defocus. The spherical-cylinder combination technology makes myopic defocus signal formed in front of the retina, and the microlenses 1041 in the composite channel 104 gradually increase the defocus amount from the middle to the periphery, so as to achieve the effect of delaying the development of myopia. Example 2

[0018] The other side of the convex surface 101 of the lens is the concave surface 102 of the lens. The surface of the concave surface 102 of the lens is provided with a micro-hole defocus area 105. The micro-hole defocus area 105 is composed of a ring array of dot-shaped concave curved surfaces. The micro-hole defocus area 105 has several channels and is arranged radially and periodically in a concentric circle on the convex surface 101 of the lens. The micro-hole defocus area 105 is set in the interval area of ​​the composite ring channel 104. The micro-hole defocus area 105 precisely controls the light transmittance. The stable low-contrast visual information continuously releases the signal of the slow growth of the eye axis. The diameter of the dot-shaped concave curved surfaces in the micro-hole defocus area 105 is 0.15mm, and the depth of the diffusion point is 0.15-0.6mm.

[0019] The technical solutions in the above embodiments of this application have at least the following technical effects or advantages: The micro-hole defocus area 105 provided in this utility model is composed of dot-shaped concave curved surfaces arranged in a ring array. Each dot-shaped concave curved surface has micro-transmittance of light, which can simulate the visual signal of myopic defocus on the retina, reduce the imaging contrast of the peripheral retina, and provide low-contrast peripheral vision.

[0020] Of course, there may be other implementations of this utility model. Based on this implementation, other implementations obtained by those skilled in the art without any creative effort are all within the scope of protection of this utility model.

Claims

1. A contrast-adjustable myopia correction lens, comprising a lens body (1), characterized in that, One side of the lens body (1) is a convex surface (101), and the other side is a concave surface (102). The center of the convex surface (101) is the central main viewing area (103). A composite ring channel (104) is provided on the surface of the convex surface (101), and a micro-aperture defocusing area (105) is provided on the surface of the concave surface (102). The composite ring channel (104) includes a microlens (1041) and a micro-cylinder (1042). The composite ring channel (104) is formed by the microlens (1041). The composite ring channel (104) is arranged in a ring array. Each microlens (1041) on the composite ring channel (104) is connected to a microcylinder (1042). The microlenses (1041) and microcylinders (1042) are interconnected and arranged in an orderly manner. The micro-hole defocus area (105) is composed of a ring array of point-shaped concave curved surfaces. The micro-hole defocus area (105) is provided with several channels and is arranged in a radial periodic concentric circle on the convex surface (101) of the lens. The micro-hole defocus area (105) is located in the interval area of ​​the composite ring channel (104).

2. The contrast-adjustable myopia correction lens according to claim 1, characterized in that, The central main viewing area (103) is a single-vision lens with a prescription power and a diameter of 7 mm.

3. The contrast-adjustable myopia correction lens according to claim 1, characterized in that, The composite ring channel (104) has several channels arranged radially and periodically in a concentric circle on the convex surface (101) of the lens. The microlenses (1041) are spaced at the same interval as the light intensity of the central main viewing area (103), and the amount of light added to each convex surface (101) of the lens is the same.

4. The contrast-adjustable myopia correction lens according to claim 1, characterized in that, The microlenses (1041) in each of the composite ring channels (104) on the convex surface (101) of the lens gradually increase the defocus from the center to the periphery, and the defocus power changes from +3.00 to +4.50D.

5. A contrast-adjustable myopia correction lens according to claim 1, characterized in that, The surface of the microlens (1041) is rotationally symmetric and is either spherical or aspherical. The surface of the microcylinder (1042) is either torus or super-torus.

6. A contrast-adjustable myopia correction lens according to claim 1, characterized in that, The diameter of the point-shaped concave curved surface in the microporous defocusing area (105) is 0.15 mm, and the depth of the diffusion point is 0.15-0.6 mm.

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