Out-of-focus and dot matrix composite lens

Abstract

The utility model discloses an out-of-focus and dot matrix composite lens, which comprises a lens main body, a central optical correction area, a central out-of-focus prevention and control area and a peripheral out-of-focus prevention and control area are arranged in the lens main body, and dot matrix areas are arranged in gaps of the central out-of-focus prevention and control area and the peripheral out-of-focus prevention and control area. Compared with the prior art, the utility model has the advantages that the central defocusing prevention and control area and the peripheral defocusing prevention and control area are arranged outside the central optical correction area in a layered manner, so that the defocusing effect can be increased step by step, a transition effect is achieved, the initial wearing comfort is improved, the correction area and the transition area are more comfortable to convert, and the wearing comfort is improved. And meanwhile, a point diffusion technology is added in a defocus gap, so that the contrast sensitivity is further reduced, the stimulation of a high-contrast visual signal to retina cone cells is reduced, and the effect of delaying myopia development is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of eyeglass lenses, in particular to a defocused and dot matrix composite lens. Background Art

[0002] With the development of electronic products in recent years, people have developed myopia from childhood to adulthood, so the corresponding myopia lenses are also constantly developing. Therefore, now people are starting to use myopic defocus lenses, which utilize the myopic defocus principle to correct the central refractive error while utilizing the peripheral relative positive power to correct the peripheral retinal hyperopic defocus of the myopic eye, thereby inhibiting the axial growth and myopia progression induced by the peripheral retinal hyperopic defocus, so as to delay the worsening of vision. Such lenses are widely used in current life. The existing myopic defocus lenses have a uniform medium as the main body. When light passes through, regular changes occur, causing the image to be refracted onto the retina and in front of the retina, thereby correcting the vision while inhibiting the worsening of vision.

[0003] However, in actual use, the single myopic defocus principle will cause some high-contrast visual signals to stimulate the cone cells of the retina. At the same time, during the movement of the eyeball, it is difficult to adapt in the early stage of wearing, and the discomfort will further increase the feeling of dizziness. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a defocus and dot matrix composite lens in view of the deficiencies in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the technical solution provided by the utility model is: a defocus and dot matrix composite lens, including a lens body, a functional area is arranged inside the lens body, a central optical correction area is arranged inside the functional area, the functional area includes a central defocus control area that wraps the central optical correction area and is evenly distributed, the functional area includes a peripheral defocus control area that wraps the central defocus control area and is evenly distributed, and a dot matrix area is arranged in the gap between the central defocus control area and the peripheral defocus control area.

[0006] Furthermore, the functional area covers a diameter of 58.5 mm, and the central diameter of the central optical correction area is 5.6 mm.

[0007] Furthermore, the central defocus control area, the peripheral defocus control area and the dot matrix area are all symmetrically arranged.

[0008] Furthermore, the central defocus control area and the peripheral defocus control area are both provided with a plurality of defocus units, and the number of the defocus units is 923, with a diameter of 1 mm and an interval of 1.163 mm.

[0009] Furthermore, the defocus diopter of the central defocus prevention and control zone is +3.50D.

[0010] Furthermore, the defocus diopter of the peripheral defocus prevention and control zone is +4.00D.

[0011] Furthermore, the lens body is manufactured using a 0.12D precision gradient system, and the maximum tolerance accuracy is increased to ±0.06D.

[0012] Compared with the prior art, the utility model has the following advantages: the innovation of early intervention for myopia, by setting the central defocus control area and the peripheral defocus control area in layers outside the central optical correction area, the defocus effect can be gradually increased, the transition effect can be played, the comfort of initial wearing can be improved, the conversion between the correction area and the transition area is more comfortable, and the defocus units are distributed regularly and symmetrically. Regardless of the rotation of the eyes, the number of defocus optical units used is stable, and a stable defocus effect can be produced in each visual direction, which also ensures the defocus imaging effect required for myopia control. At the same time, point diffusion technology is added in the defocus gap to further reduce contrast sensitivity, reduce the stimulation of high-contrast visual signals on retinal cone cells, and improve the effect of delaying the development of myopia. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The utility model is a structural schematic diagram of a defocus and dot matrix composite lens.

[0014] As shown in the figure: 1. Lens body; 2. Central optical correction area; 3. Central defocus control area; 4. Peripheral defocus control area; 5. Dot matrix area. DETAILED DESCRIPTION

[0015] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0016] Combined with Figure 1 Embodiment 1: A defocus and dot matrix composite lens comprises a lens body 1, wherein a functional area is arranged inside the lens body 1, a central optical correction area 2 is arranged inside the functional area, the functional area comprises a central defocus control area 3 which wraps the central optical correction area 2 and is evenly distributed, the functional area comprises a peripheral defocus control area 4 which wraps the central defocus control area 3 and is evenly distributed, a dot matrix area 5 is arranged between the central defocus control area 3 and the peripheral defocus control area 4, the central defocus control area 3, the peripheral defocus control area 4 and the dot matrix area 5 are symmetrically arranged, and in the actual production process, it is necessary to ensure that the number of defocus optical units and the dot matrix area 5 is stable, and that they are evenly and symmetrically distributed, so as to ensure that a stable defocus effect can be produced in each visual direction.

[0017] Combined with Figure 1Embodiment 2: A defocus and dot matrix composite lens, comprising a lens body 1, wherein a functional area is provided inside the lens body 1, wherein a central optical correction area 2 is provided inside the functional area, wherein the functional area comprises a central defocus control area 3 wrapping the central optical correction area 2, wherein the functional area comprises a peripheral defocus control area 4 of the central defocus control area 3, wherein a dot matrix area 5 is provided between the central defocus control area 3 and the peripheral defocus control area 4, wherein the functional area covers a diameter of 58.5 mm, and the central diameter of the central optical correction area 2 The diameter of the central defocus control zone 3 and the peripheral defocus control zone 4 are 5.6mm, and a plurality of defocus units are provided. The number of the defocus units is 923, the diameter is 1mm, and the interval distance is 1.163mm. The defocus diopter of the central defocus control zone 3 is +3.50D, and the defocus diopter of the peripheral defocus control zone 4 is +4.00D. The lens body 1 is manufactured by a 0.12D precise gradient system, and the maximum tolerance accuracy is increased to ±0.06D, which can make the vision clearer, more accurate, and the binocular vision more balanced.

[0018] Embodiment 1 is a conventional lens setting of a defocus and dot matrix composite lens, and embodiment 2 is an enhanced version of a defocus and dot matrix composite lens with precise data setting.

[0019] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A defocus and dot matrix composite lens, comprising a lens body (1), characterized in that: The lens body (1) is provided with a functional area inside, a central optical correction area (2) is provided inside the functional area, the functional area includes a central defocus control area (3) which surrounds the central optical correction area (2) and is evenly distributed, the functional area includes a peripheral defocus control area (4) which surrounds the central defocus control area (3) and is evenly distributed, and a dot matrix area (5) is provided between the central defocus control area (3) and the peripheral defocus control area (4).

2. The defocus and dot matrix composite lens according to claim 1, characterized in that: The functional area covers a diameter of 58.5 mm, and the central diameter of the central optical correction area (2) is 5.6 mm.

3. The defocus and dot matrix composite lens according to claim 1, characterized in that: The central defocus control area (3), the peripheral defocus control area (4) and the dot matrix area (5) are all symmetrically arranged.

4. The defocus and dot matrix composite lens according to claim 1, characterized in that: The central defocus control area (3) and the peripheral defocus control area (4) are both provided with a plurality of defocus units, wherein the number of the defocus units is 923, the diameter is 1 mm, and the spacing is 1.163 mm.

5. The defocus and dot matrix composite lens according to claim 1, characterized in that: The defocus diopter of the central defocus prevention and control area (3) is +3.50D.

6. The defocus and dot matrix composite lens according to claim 1, characterized in that: The defocus diopter of the peripheral defocus prevention and control zone (4) is +4.00D.

7. The defocus and dot matrix composite lens according to claim 1, characterized in that: The lens body (1) is manufactured using a 0.12D precision gradient system, and the maximum tolerance accuracy is increased to ±0.06D.

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