Stress-free multi-point out-of-focus myopia management lens

Abstract

The utility model discloses a stress-free multi-point out-of-focus myopia management lens, and relates to the technical field of optical lenses, the stress-free multi-point out-of-focus myopia management lens comprises a lens body, the lens body is of a micro-lens array structure, the lens body is provided with an out-of-focus point, the diameter of the lens body is 74.95 mm, the thickness of the lens body is 29.95 mm, the lens body is provided with an arc-shaped groove, and the lens body is provided with a plurality of through holes. The radius of the notch of the arc-shaped groove is 1.5 mm. The lens body is also provided with a waterproof film layer. The lens has the advantages that focusing is easy, the visual field is clear, the special imaging effect is achieved, each micro lens performs imaging independently, a unique natural scene is formed, and the waterproof film layer protects the lens body to prevent water drops from staying and affecting the visual field.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of optical lenses, in particular to a stress-free multi-point defocus myopia management lens. BACKGROUND

[0002] For normal eyes, the external parallel light is imaged on the retina through the cornea and the lens, and there is no defocus state. Myopia refers to that when the eye is in a relaxed state, the external parallel light is imaged in front of the retina after passing through the cornea and the lens, thereby causing blurred vision. And the peripheral light defocuses into the eye and focuses on the back of the retina, forming peripheral defocus.

[0003] The single-focus lens in the prior art cannot effectively delay the progression of myopia, and the progressive multi-focus lens has certain effect, but there are problems such as visual field segmentation, long adaptation period, and the like, and the lens is easily affected by the visual field in the water droplet or rainy environment. CONTENT OF THE UTILITY MODEL

[0004] In order to improve the problems of visual field segmentation, long adaptation period, and the like, and the influence of the visual field caused by the water droplets staying on the lens, the present application provides a stress-free multi-point defocus myopia management lens.

[0005] The stress-free multi-point defocus myopia management lens provided by the present application adopts the following technical scheme:

[0006] A stress-free multi-point defocus myopia management lens, comprising a lens body, the lens body is a microlens array structure, the lens body is provided with a defocus point, the diameter of the lens body is 74.95 mm, the thickness of the lens body is 29.95 mm, an arc-shaped groove is formed in the lens body, the slot radius of the arc-shaped groove is 1.5 mm, and a waterproof film layer is further arranged on the lens body.

[0007] Optionally, the microlens array structure is arranged in a rotationally symmetrical belt, the microlens array belt has 12 circles, the interval between the belt is increased in a view angle surrounding manner, the minimum interval is 0.832 mm, and the maximum interval is 1.581 mm.

[0008] Optionally, the center diameter of the defocus point is 10.12, 14.94, 19.76, 24.58, 29.4, 34.22, 39.04, 43.86, 48.68, 53.5 and 63.14 from inside to outside, the number of microlens structures is 28, 42, 55, 68, 80, 93, 106, 119, 130, 144, 156 and 168 from inside to outside, and the total number of microlenses is 1189.

[0009] Optionally, the defocus area of the lens body is 10.128-59.566 mm.

[0010] Optionally, the defocus amount of the lens body is increased in stages, the defocus amount of one to four circles is 3.50D, the defocus amount of five to eight circles is 4.50D, and the defocus amount of nine to twelve circles is 5.50D.

[0011] Optionally, the visual area diameter of the lens body is 10.128mm.

[0012] In summary, the present application includes at least one of the following beneficial technical effects:

[0013] 1. The lens body of the utility model adopts a microlens array structure, has twelve defocus points, the total number of microlenses is 1189, has multiple defocus amounts of 3.50D, 4.50D and 5.50D respectively, the defocus image can control the growth of the eye axis and delay the deepening of myopia, can delay the backward extension of the eye axis, delay the development of myopia to a certain extent, and improve the adaptability.

[0014] 2. The surface of the lens body also has a waterproof film layer, which can avoid water droplets from staying on the lens in daily life, timely shed water droplets and maintain good visual field.

[0015] 3. The arc-shaped groove provided on the lens body can improve stability when cooperating with the frame, and facilitate positioning operation during installation. DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0017] Figure 1 is a schematic diagram of the stress-free multi-point defocus lens structure of the present application.

[0018] Figure 2 is an enlarged view of A of the present application. Figure 1

[0019] Figure 3 is a cross-sectional view of the stress-free multi-point defocus lens of the present application.

[0020] Reference signs: 1, lens body; 2, defocus point; 3, arc-shaped groove. DETAILED DESCRIPTION

[0021] The present application will be further described in detail below in combination with the accompanying drawings. Figure 1 to Figure 3 The present application will be further described in detail below in combination with the accompanying drawings.

[0022] ​The embodiment of the application discloses a stress-free multi-point defocus myopia management lens.

[0023] Referring to Figure 1 and Figure 2 As shown in the figure, the lens body 1 is a microlens array structure, has a special imaging effect, each microlens independently images, forms a unique natural scene image, the lens body 1 is provided with a defocus point 2, the diameter of the lens body 1 is 74.95 mm, the thickness is 29.95 mm, the lens body 1 is provided with an arc-shaped groove 3, the slot radius of the arc-shaped groove 3 is 1.5 mm, and the arc-shaped groove 3 is 20 mm away from the bottom of the lens body.

[0024] As shown in the following table, the lens body 1 is provided with twelve circles of defocus points 2, each defocus point 2 is annular, the center diameter of the defocus point 2 of the first circle is 10.12 mm, the number of the defocus points 2 is 28, and the positive defocus amount is 3.50D; the center diameter of the defocus point 2 of the second circle is 14.94 mm, the number of the defocus points 2 is 42, and the positive defocus amount is 3.50D; the center diameter of the defocus point 2 of the third circle is 19.76 mm, the number of the defocus points 2 is 55, and the positive defocus amount is 3.50D; the center diameter of the defocus point 2 of the fourth circle is 24.58 mm, the number of the defocus points 2 is 68, and the positive defocus amount is 3.50D; the center diameter of the defocus point 2 of the fifth circle is 29.4 mm, the number of the defocus points 2 is 80, and the positive defocus amount is 4.50D; the center diameter of the defocus point 2 of the sixth circle is 34.22 mm, the number of the defocus points 2 is 93, and the positive defocus amount is 4.50D; the center diameter of the defocus point 2 of the seventh circle is 39.04 mm, the number of the defocus points 2 is 106, and the positive defocus amount is 4.50D; the center diameter of the defocus point 2 of the eighth circle is 43.86 mm, the number of the defocus points 2 is 119, and the positive defocus amount is 4.50D; the center diameter of the defocus point 2 of the ninth circle is 48.68 mm, the number of the defocus points 2 is 130, and the positive defocus amount is 5.50D; the center diameter of the defocus point 2 of the tenth circle is 53.5 mm, the number of the defocus points 2 is 144, and the positive defocus amount is 5.50D; the center diameter of the defocus point 2 of the eleventh circle is 58.32 mm, the number of the defocus points 2 is 144, and the positive defocus amount is 5.50D; the center diameter of the defocus point 2 of the twelfth circle is 63.14 mm, the number of the defocus points 2 is 168, and the positive defocus amount is 5.50D; and the total number of the microlenses is 1189.

[0025] Center diameter of the out-of-focus point Number of microlens structures Amount of out-of-focus 1 10.12 28 3.50 2 14.94 42 3.50 3 19.76 55 3.50 4 24.58 68 3.50 5 29.4 80 4.50 6 34.22 93 4.50 7 39.04 106 4.50 8 43.86 119 4.50 9 48.68 130 5.00 10 53.5 144 5.00 11 58.32 156 5.00 12 63.14 168 5.00 Total 1189

[0026] The microlens array structure is arranged in a rotationally symmetrical ring, the microlens array ring has 12 circles, the interval between the ring bands increases in a vision angle surrounding mode, the minimum interval is 0.832 mm, and the maximum interval is 1.581 mm.

[0027] The amount of defocus of the lens body 1 is increased in stages, the amount of defocus of the first to fourth circles is 3.50D, the amount of defocus of the fifth to eighth circles is 4.50D, and the amount of defocus of the ninth to twelfth circles is 5.50D. The defocus area of the lens body 1 is 10.128-59.566mm. The diameter of the visual area of the lens body 1 is 10.128mm.

[0028] Referring to Figure 3 As shown, the surface of the lens body 1 is also coated with a waterproof film layer, which is a very thin film layer, and water droplets are difficult to stay on the surface of the lens, achieving automatic shedding, achieving good waterproof effect, and helping to maintain the superiority of the field of view in a humid or water splashing environment.

[0029] The implementation principle of the stress-free multi-point defocus myopia management lens according to the embodiment of the application is as follows: the lens body 1 is a micro-transmission array structure, has twelve defocus points 2, has multiple defocus amounts of 3.5D, 4.5D, and 5.5D, improves the adaptability, controls the eye axis growth and delays the deepening of myopia through defocus control, relieves the development of myopia in children, the arc-shaped groove 3 on the lens body 1 is used to improve the stability and facilitate assembly during clamping assembly, and the waterproof film layer on the surface of the lens prevents water droplets from staying on the lens body 1, thereby maintaining the good open field of view performance for the user.

[0030] Unless otherwise defined, technical terms or scientific terms used in the present application shall be understood as having the usual meaning understood by a person skilled in the art to which the present application belongs. The terms "first", "second", "third", and the like used in the specification and claims of the present application do not represent any order, number, or importance, but are only used to distinguish different components. The terms "one" or "a" and the like do not represent a quantity limitation, but represent the existence of at least one. The terms "including", "containing", and the like mean that the elements or objects appearing before "including" or "containing" cover the elements or objects listed after "including" or "containing" and their equivalents, and do not exclude other elements or objects. The terms "upper", "lower", "left", "right", and the like are only used to represent relative positional relationships, and when the absolute positions of the described objects change, the relative positional relationships may also change accordingly.

[0031] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A stress-free multi-point through-focus myopia management lens comprising a lens body (1), characterized in that, The lens body (1) is a microlens array structure, the lens body (1) is provided with a defocus point (2), the diameter of the lens body (1) is 74.95 mm, the thickness is 29.95 mm, the lens body (1) is provided with an arc-shaped groove (3), the slot radius of the arc-shaped groove (3) is 1.5 mm, and the lens body (1) is further provided with a waterproof film layer; The microlens array structure is arranged in a rotationally symmetrical ring, the microlens array ring is 12 rings, the ring spacing is increased in a viewing angle surrounding mode, the minimum spacing is 0.832 mm, and the maximum spacing is 1.581 mm; The defocus area of the lens body (1) is 10.128-59.566 mm; The defocus amount of the lens body (1) is increased in stages, the defocus amount of the first to fourth rings is 3.50D, the defocus amount of the fifth to eighth rings is 4.50D, and the defocus amount of the ninth to twelfth rings is 5.50D.

2. A stress-free multi-vision management lens of any one of claims 1, wherein: The center diameter of the defocus point (2) is 10.12, 14.94, 19.76, 24.58, 29.4, 34.22, 39.04, 43.86, 48.68, 53.5 and 63.14 from inside to outside; the number of the microlens structure is 28, 42, 55, 68, 80, 93, 106, 119, 130, 144, 156 and 168 from inside to outside; and the total number of the microlenses is 1189.

3. A stress-free multi-point through-focus myopia management lens according to claim 1, wherein: The diameter of the visual area of the lens body (1) is 10.128 mm.

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