Full-coverage out-of-focus lens

Abstract

The utility model discloses a full-coverage out-of-focus lens. The full-coverage out-of-focus lens comprises a lens; the center of the lens is a central visible area, the periphery of the central visible area is an out-of-focus area, the out-of-focus area is provided with a first out-of-focus area, a second out-of-focus area and a third out-of-focus area, the inner edge of the first out-of-focus area is circular, the outer edge of the first out-of-focus area is in an annular wave shape, the second out-of-focus area is composed of a plurality of out-of-focus micro lens units in a circular array, and the third out-of-focus area is in an annular band shape. The outer edge extends to the edge of the lens; the defocus area is provided with the first defocus area, the second defocus area and the third defocus area, the micro-lens gap of the first defocus area is smaller than the micro-lens gap of the second defocus area, the first defocus area can enhance and correct a visual image transmitted by the edge of the central visual area, the corrected visual image falls in front of the retina or approaches the retina, and the visual image can be reflected by the first defocus area and the second defocus area. The eyeglasses can relieve fatigue of eyes, relieve tension of ciliary muscles when the eyes wear myopia glasses, reduce stimulation of images around an object to the eyes, and thus achieve the purpose of inhibiting myopia degree increase.

Description

Technical Field

[0001] The utility model belongs to the technical field of lenses, and in particular relates to a full-coverage defocus lens. Background Art

[0002] Myopia in China has become an "epidemic" trend, and the incidence of myopia is also increasing worldwide. It is estimated that by 2050, the number of myopic people will increase from 2 billion to 5 billion. At the same time, high myopia may cause eye health risks, visual impairment or permanent vision loss. Therefore, the management of adolescent myopia is urgent. The eyeballs of adolescents are in the growth and development stage, with strong adjustment ability and susceptible to interference from multiple factors. The occurrence and development of myopia is characterized by gradual, superimposed and irreversible. Once formed, the opportunity for prevention and control will be lost. Therefore, the research on the prevention and control methods of adolescent myopia is of great medical and social significance.

[0003] When a myopic person looks at an object, the central and peripheral images of the object are projected in front of the retina. Using a myopic single-vision corrective lens, the central image can be projected on the retina, and the peripheral image moves backward with the central image and falls behind the retina. The peripheral retina will then send out a stimulation signal that the vision is defective, notifying the eyeball to stretch, causing the retina to grow backwards and stimulating the growth of the eye axis, thereby causing myopia to increase every year. In order to control the increase in myopia, a full-coverage defocus lens is provided. Utility Model Content

[0004] In view of this, the technical problem to be solved by the present invention is to provide a full-coverage defocus lens, which solves the problem of increased myopia caused by wearing ordinary myopia lenses in the prior art.

[0005] In order to solve the above technical problems, the utility model discloses a full-coverage defocus lens, comprising: a lens; the center of the lens is a central visual area, the periphery of the central visual area is a defocus area, the defocus area has a defocus area 1, a defocus area 2 and a defocus area 3, the defocus area 1 is a circular inner edge, and its outer edge is an annular wavy shape, the defocus area 2 is composed of a plurality of circular arrays of defocus microlens units, the defocus area 3 is annular, and its outer edge extends to the edge of the lens; the microlenses in the defocus area 1, the defocus area 2 and the defocus area 3 are evenly spaced and arranged in each area, and the diameter and spacing of the microlenses in each area increase from the inside to the outside.

[0006] Furthermore, the crest of the outer edge of the above-mentioned defocused area is in a sharp angle shape.

[0007] Furthermore, the defocus microlens units in the second defocus zone fill up the troughs at the outer edge of the first defocus zone.

[0008] Furthermore, the above-mentioned second defocusing zone has at least seven defocusing microlens units.

[0009] Compared with the prior art, the present application can obtain the following technical effects:

[0010] The utility model has a defocus zone with a first defocus zone, a second defocus zone and a third defocus zone. The microlens gap of the first defocus zone is smaller than the microlens gap spacing of the second defocus zone. The first defocus zone can enhance and correct the transmitted image at the edge of the central visual area. The corrected image falls in front of the retina or close to the retina, which can relieve eye fatigue, reduce the tension of the ciliary muscle when the eyes wear myopia glasses, and reduce the stimulation of the peripheral image of the object to the eyes, thereby achieving the situation of suppressing the increase of myopia.

[0011] Of course, any product implementing this application does not necessarily need to achieve all of the technical effects described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0013] Figure 1 It is a schematic diagram of a lens according to one embodiment of the present invention.

[0014] Figure ID

[0015] Lens 1, central visual area 2, defocus zone 1 3, defocus zone 2 4, defocus zone 3 5, defocus microlens unit 6. DETAILED DESCRIPTION

[0016] The following will describe the implementation methods of the present application in detail with the help of accompanying drawings and examples, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0017] Please refer to Figure 1 , Figure 1 It is a schematic diagram of a lens according to one embodiment of the present invention.

[0018] A full-coverage defocus lens comprises: a lens 1; the center of the lens 1 is a central visual area 2, the periphery of the central visual area 2 is a defocus area, the defocus area comprises a first defocus area 3, a second defocus area 4 and a third defocus area 5, the first defocus area 3 is circular in inner edge, and its outer edge is annular and wavy, the second defocus area 4 is composed of a plurality of circular array defocus microlens units 6, the third defocus area 5 is annular, and its outer edge extends to the edge of the lens 1; the microlenses in the first defocus area 3, the second defocus area 4 and the third defocus area 5 are evenly spaced and arranged in each area, and the diameter and spacing of the microlenses in each area increase from the inside to the outside.

[0019] The crest of the outer edge of the defocus zone 1 3 is pointed, and a plurality of extensions are formed on the outer edge of the defocus zone 1 3 , which can expand the visible range; the defocus microlens unit 6 of the defocus zone 2 4 fills the trough of the outer edge of the defocus zone 1 3 , and the defocus zone 2 4 has at least seven defocus microlens units 6 , which form a gradient with the defocus zone 1 3 , and play the role of buffering the eye's line of sight, and can reduce the tension of the ciliary muscle when the eye wears myopia glasses.

[0020] In summary, the utility model has a defocus zone with a defocus zone 1 3, a defocus zone 2 4 and a defocus zone 3 5. The microlens gap of the defocus zone 1 3 is smaller than the microlens gap spacing of the defocus zone 2 4. The defocus zone 1 3 can enhance and correct the transmitted image at the edge of the central visual area. The corrected image falls in front of the retina or close to the retina, which can relieve eye fatigue, reduce the tension of the ciliary muscles when the eyes wear myopia glasses, and reduce the stimulation of the peripheral images of objects to the eyes, thereby achieving the goal of inhibiting the increase of myopia.

[0021] The above description shows and describes several preferred embodiments of the utility model, but as mentioned above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A full coverage defocus lens, comprising: lens; The lens is characterized in that the center of the lens is a central visual area, the periphery of the central visual area is a defocus area, the defocus area includes a defocus area 1, a defocus area 2 and a defocus area 3, the defocus area 1 has a circular inner edge, and its outer edge is an annular wavy shape, the defocus area 2 is composed of a plurality of circular array defocus microlens units, the defocus area 3 is annular, and its outer edge extends to the edge of the lens; the microlenses in the defocus area 1, the defocus area 2 and the defocus area 3 are evenly spaced in each area, and the diameter and spacing of the microlenses in each area increase from the inside to the outside.

2. The full coverage defocus lens according to claim 1, characterized in that: The wave crest of the outer edge of the defocused area is in a sharp angle shape.

3. The full coverage defocus lens according to claim 1, characterized in that: The defocus microlens units in the second defocus zone fill up the troughs at the outer edge of the first defocus zone.

4. The full coverage defocus lens according to claim 3, characterized in that: The second defocusing zone has at least seven defocusing microlens units.

Images