Multi-point lens special-shaped contour out-of-focus lens

Abstract

The utility model discloses a multi-point lens special-shaped outline defocus lens which comprises a lens body. A circular bright vision area is arranged in the center of the lens, an out-of-focus area is arranged on the periphery of the bright vision area, the out-of-focus area is provided with an annular belt area and extension areas, the width of the annular belt area is equal to the radius of the bright vision area, and the extension areas are distributed on the edge of the annular belt area at intervals. The out-of-focus area is arranged on the periphery of the bright vision area, the out-of-focus area comprises the annular belt area and the extension area, the annular belt area is wide enough to project images to the periphery of an object, and the extension area is used for solving the problem that the out-of-focus area deviates from eyeballs due to the fact that the out-of-focus area slides down when a wearer wears the glasses. The eyes of a wearer can deflect towards the lower edges and the two sides of the lenses when the wearer watches and writes, in order to enable the defocus areas to better correct the eyes, defocus extension areas are arranged on the two sides of the lower edges, better defocus imaging is achieved, and therefore the correction effect is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of lenses, and in particular relates to a multi-point lens with a special-shaped contour and a defocused lens. Background Art

[0002] The eyes of adolescents are in the stage of growth and development, with strong accommodation ability and are easily affected by various factors. The occurrence and development of myopia is gradual, cumulative and irreversible. Once it is formed, the opportunity for prevention and control will be lost.

[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 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 multi-point lens with a special-shaped contour defocus lens is provided. Summary of the invention

[0004] In view of this, the technical problem to be solved by the utility model is to provide a multi-point lens special-shaped contour 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 multi-point lens special-shaped contour defocus lens, comprising: a lens; a circular clear vision area is provided in the center of the lens, a defocus area is provided on the periphery of the clear vision area, the defocus area has an annular zone and an extension zone, the width of the annular zone is equal to the radius of the clear vision area, and a plurality of extension zones are spaced apart and distributed at the edge of the annular zone.

[0006] Furthermore, the above-mentioned extension area is surrounded by the edge of the annular zone, two circle tangents and an arc line, the distance between the center of the arc line and the center of the clear vision zone is 2.5 times the radius of the clear vision zone, and the circle tangent line is the tangent line between the edge of the annular zone and the arc line.

[0007] Furthermore, the annular zone has at least eight circles of microlens groups.

[0008] Furthermore, the above-mentioned defocusing area has three extension areas, each extension area is spaced 120 degrees apart, and one of the extension areas is located at the upper edge of the annular zone.

[0009] Furthermore, the extension area has a microlens group with at least three arc path arrays.

[0010] Compared with the prior art, the present application can obtain the following technical effects:

[0011] The utility model sets a defocus zone on the periphery of the clear vision zone, and the defocus zone includes an annular zone and an extension zone. The range of the annular zone is sufficient to project an image on the periphery of the object. The extension zone is designed to prevent the wearer from sliding down when wearing the glasses, causing the defocus zone to deviate from the eyeball, and the wearer's eyes to deflect toward the lower edge and both sides of the lens when reading and writing. In order to make the defocus zone better correct the eyes, defocus extension zones are set on both sides of the lower edge to achieve better defocus imaging and thus achieve the correction effect.

[0012] 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

[0013] 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:

[0014] Figure 1 It is a schematic diagram of a lens according to one embodiment of the present invention.

[0015] Attached photos

[0016] Lens 1, clear vision area 2, defocus area 3, annular zone 4, extension zone 5. DETAILED DESCRIPTION

[0017] 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.

[0018] Please refer to Figure 1 , Figure 1 It is a schematic diagram of a lens according to one embodiment of the present invention.

[0019] A multi-point lens special-shaped contour defocus lens, comprising: a lens 1; a circular clear vision area 2 is provided in the center of the lens 1, a defocus area 3 is provided on the periphery of the clear vision area 2, the defocus area 3 has an annular area 4 and an extension area 5, the width of the annular area 4 is equal to the radius OA of the clear vision area 2, and a plurality of extension areas 5 are distributed at intervals on the edge of the annular area 4.

[0020] The extension area 5 is surrounded by the annular zone edge CC, two circle tangents CD and an arc DD. The distance between the center of the arc DD and the center of the clear vision zone 2 is 2.5 times the clear vision zone radius OA. The circle tangent CD is the tangent of the annular zone edge CC and the arc DD.

[0021] The annular zone 4 has eight circles of microlens groups, the defocus zone 3 has three extension zones 5, each extension zone 5 is spaced 120 degrees apart, one of which is located at the upper edge of the annular zone 4; the extension zone 5 has a microlens group with three arc path arrays.

[0022] In summary, the utility model sets a defocus zone 3 on the periphery of the clear vision zone 2, and the defocus zone 3 includes an annular zone 4 and an extension zone 5. The range of the annular zone 4 is sufficient to project an image on the periphery of the object. The extension zone 5 is designed to prevent the wearer from sliding down when wearing the glasses, causing the defocus zone 3 to deviate from the eyeball, and the wearer's eyes to deflect toward the lower edge and both sides of the lens 1 when reading and writing. In order to better correct the eyes in the defocus zone 3, defocus extension zones 5 are set on both sides of the upper edge and the lower edge to achieve better defocus imaging and thus achieve a correction effect.

[0023] 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 multi-point lens with a special-shaped profile defocusing lens, comprising: lens; The lens is characterized in that a circular clear vision area is provided in the center, a defocus area is provided outside the clear vision area, the defocus area has an annular area and an extended area, the width of the annular area is equal to the radius of the clear vision area, and a plurality of extended areas are distributed at intervals on the edge of the annular area.

2. The multi-point lens profiled defocused lens according to claim 1, characterized in that: The extension area is surrounded by the edge of the annular zone, two circle tangents and an arc line. The distance between the center of the arc line and the center of the clear vision zone is 2.5 times the radius of the clear vision zone. The circle tangent line is the tangent line between the edge of the annular zone and the arc line.

3. The multi-point lens profiled defocused lens according to claim 1, characterized in that: The annular zone has at least eight circles of microlens groups.

4. The multi-point lens profiled defocused lens according to claim 1, characterized in that: The defocusing zone has three extension zones, each of which is 120° apart, and one of the extension zones is located at the upper edge of the annular zone.

5. The multi-point lens profiled defocused lens according to claim 1, characterized in that: The extension area has a microlens group with at least three arc path arrays.

Images