Coated lens for delaying myopia development based on contrast reduction
By designing a central optical correction zone and a contrast reduction zone on the lens, and using technologies such as multi-layer reflective coating to adjust the light transmittance, the problem of the diminishing effect of existing lenses in controlling myopia has been solved, achieving individualized myopia suppression and delaying axial elongation.
Patent Information
- Application Number
- CN202520764779.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-22
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-04-22
AI Technical Summary
The single defocus signal of existing defocus lenses leads to a decline in myopia control effectiveness, and they cannot adapt to individual differences. In addition, the light transmittance of traditional peripheral defocus lenses is fixed, which cannot effectively inhibit excessive axial elongation.
Design a coated lens comprising a central optical correction zone and a contrast reduction zone. The contrast is reduced by multi-layer reflective coating, gradient staining or surface physical sandblasting technology to achieve dynamic adjustment of light transmittance. The light intensity range of the central optical correction zone is +2.00D to -10.00D, and the light transmittance of the peripheral contrast reduction zone is reduced by 5% to 30%.
It effectively inhibits the development of myopia, slows down the growth of the axial length of the eye, enhances the prevention and control effect of long-term wear, and adapts to individuals with different light intensity needs.
Smart Images
Figure CN223955913U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a lens technical field, specifically point to a kind of coating film lens for delaying myopia development based on reducing contrast. BACKGROUND
[0002] Just born infant is hyperopia, with development becomes emmetropia, if development is too fast, it will become myopia, and the most influential one to myopia occurrence and development is the rapid development of eye axis, so the corresponding myopia lens is also developing, and the virtual focus lens is mainly suitable for adolescent myopia patient, and the virtual focus lens is designed to make the peripheral region of lens image in front of retina, produce myopic defocus, for example, when light passes through the central region of lens, it can be normally focused on retina, to ensure clear central vision, and the peripheral light passes through the special optical area of lens, and will focus in advance, form myopic defocus signal, as if giving retina periphery a "signal", tell it not to grow too much backward, so as to possibly inhibit the excessive growth of eye axis, because eye axis is too long is an important reason for myopia deepening.
[0003] But the defocus signal of the defocus lens in the prior art is single, and the traditional peripheral defocus lens relies on fixed refractive gradient, generally +3.00~+6.00D, but the response of human retina to defocus signal exists significant individual difference, and the sensitivity fluctuation reaches ±40%, and the neural adaptability problem, and the research of Nature Neuroscience in 2023 confirms that after continuous wearing for 6 months, the visual cortex neurons will reconstruct signal processing mode, leading to attenuation of prevention and control effect. UTILITY MODEL CONTENT
[0004] The utility model solves the technical problem in the above background technology, and provides a coating film lens for delaying myopia development based on reducing contrast.
[0005] To solve the above technical problems, the utility model provides a technical scheme: a coating film lens for delaying myopia development based on reducing contrast, which comprises a lens main body, a functional area is arranged inside the lens main body, the functional area comprises a central optical correction area arranged at the center, a contrast weakening area is arranged outside the central optical correction area of the lens main body, the lens diameter of the lens main body is 70mm, the diameter of the central optical correction area is 6mm, the weakening range of the contrast weakening area is 5%~30%, and the optical power range of the central optical correction area is +2.00D~-10.00D.
[0006] Further, the contrast weakening of the contrast weakening area is 10%.
[0007] Further, the contrast weakening of the contrast weakening area is set to 20%.
[0008] Further, the light transmittance reduction of the contrast weakening area is achieved by multi-layer reflective coating.
[0009] Further, the light transmittance reduction of the contrast weakening area is achieved by gradient dyeing technology.
[0010] Further, the light transmittance reduction of the contrast weakening area is achieved by surface physical sandblasting treatment.
[0011] The utility model discloses a contrast weakening area is arranged on the periphery of the central optical correction area, and the contrast weakening area is arranged to reduce the contrast of the peripheral light signal, and the negative defocus signal that induces myopia development is inhibited, and the eye axis growth is effectively delayed.
[0012] 2, the dynamic adjustment of contrast weakening avoids the attenuation of prevention and control effect caused by neural adaptability, and improves the effectiveness of long-term wearing.
[0013] 3, the central optical correction area is compatible with different luminosity requirements, and is widely applicable to the public. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is the structure diagram of the utility model patent name.
[0015] As shown in the figure: 1, lens main body;2, central optical correction area;3, contrast weakening area. DETAILED DESCRIPTION
[0016] The utility model will be further described in detail in combination with the drawings.
[0017] In combination with the drawings Figure 1 A coating lens for delaying myopia development based on reducing contrast, comprising a lens main body 1, the lens main body 1 is internally provided with a functional area, the functional area includes a centrally arranged central optical correction area 2, the lens main body 1 is provided with a contrast weakening area 3 outside the central optical correction area 2, the lens diameter of the lens main body 1 is set to 70mm, the diameter of the central optical correction area 2 is set to 6mm, the weakening range of the contrast weakening area 3 is set to 5% ~ 30%, and the luminosity range of the central optical correction area 2 is set to +2.00D ~-10.00D.
[0018] The light transmittance reduction of the contrast weakening area 3 is achieved by multi-layer reflective coating, gradient dyeing technology and surface physical sandblasting.
[0019] Example 1: 10% contrast weakening
[0020] Central optical zone: diameter 6mm, light range +2.00D~ -10.00D, contrast weakening zone: using multi-layer reflective coating technology, light transmittance is reduced by 10%, suitable for low light users.
[0021] Example 2: 20% contrast weakening
[0022] Central optical zone: diameter 6mm, light range +2.00D~ -10.00D, contrast weakening zone: through gradient dyeing technology, light transmittance is reduced by 20%, suitable for high myopia users.
[0023] The present application reduces the light signal stimulation of the peripheral retina by reducing the light transmittance of the lens periphery, the weakening range is 5%~30%, weakens the negative defocus signal that induces myopia development, thereby delaying the axial length growth and controlling the development speed of myopia.
[0024] The above describes the present application and its embodiments, which is not restrictive, and the shown in the drawings is only one of the embodiments of the present application, and the actual structure is not limited thereto. In summary, if a person skilled in the art is inspired, without departing from the creative purpose of the present application, without creative design, similar structure and embodiments to the technical scheme, which should belong to the protection scope of the present application.
Claims
1. A coated lens for delaying myopia progression based on reducing contrast, comprising a lens body (1), wherein the lens body (1) is internally provided with a functional area, and the functional area comprises a central optical correction area (2) arranged in the center, characterized in that: The lens body (1) is provided with a contrast weakening area (3) outside a central optical correction area (2), the lens body (1) is provided with a lens diameter of 70mm, the central optical correction area (2) is provided with a diameter of 6mm, the weakening range of the contrast weakening area (3) is provided with 5% to 30%, and the luminosity range of the central optical correction area (2) is provided with +2.00D to -10.00D.
2. The coated lens for delaying myopia progression based on reducing contrast according to claim 1, wherein: The contrast weakening area (3) is provided with a contrast weakening of 10%.
3. The coated lens for delaying myopia progression based on reducing contrast according to claim 1, wherein: The contrast weakening area (3) is provided with a contrast weakening of 20%.
4. The coated lens for delaying myopia progression based on reducing contrast according to any one of claims 1-3, characterized in that: The light transmittance reduction of the contrast weakening area (3) is realized by multi-layer reflective coating.
5. The coated lens for delaying myopia progression based on reducing contrast according to any one of claims 1-3, characterized in that: The light transmittance reduction of the contrast weakening area (3) is realized by gradient dyeing technology.
6. The coated lens for delaying myopia progression based on reducing contrast according to any one of claims 1-3, characterized in that: The light transmittance reduction of the contrast weakening area (3) is realized by surface physical sand blasting treatment.