Small-optical-area nanometer photoetching fusion multi-point defocus lens and frame spectacle lens provided with small-optical-area nanometer photoetching fusion multi-point defocus lens

By designing a small optical zone nanolithography fusion multi-point defocus lens, and using a multi-layer microlens structure and composite optical network, the resolution and speed bottlenecks of traditional nanolithography technology have been solved, achieving efficient myopia management and all-round lens protection.

CN223977459UActive Publication Date: 2026-03-06JIANGSU SHENGPU OPTICAL TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-16
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

Traditional nanolithography technology has insufficient resolution and processing speed, making it difficult to meet the requirements of high precision and high efficiency. The combination of multi-point defocusing lens technology and nanolithography technology has not yet achieved the manufacturing of more refined and efficient optical structures.

Method used

The design incorporates nano-lithography to create a multi-point defocus lens with a small optical area. It employs a multi-layer microlens structure and a composite optical network to generate a defocus effect through precisely arranged microlenses, thereby enhancing the retinal defocus signal. Combined with a multi-layer material coating, it provides all-around protection.

Benefits of technology

It significantly improves myopia control, slows myopia progression, enhances visual quality, adapts to special environments, extends lens life, and protects eye health.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223977459U_ABST
    Figure CN223977459U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of lenses, in particular to a small optical area nanometer photoetching fusion multi-point defocusing lens and a frame spectacle lens with the same, which comprise a lens body, the lens body comprises a base layer I, a plurality of micro lenses I are distributed on the surface of the base layer I, the distance diameter of a central area formed by the plurality of micro lenses I is 7.45 mm, and the distance diameter of the central area formed by the plurality of micro lenses I is 7.45 mm. And the diameter of an out-of-focus area formed by the plurality of micro lenses I is 48.71 mm. According to the scheme, a 5-8mm small light area design is adopted, compared with a traditional 9mm central optical area, more defocusing amount can be generated in a retina defocusing sensitive area (10-20 degrees), the myopia control effect is remarkably improved, the action angle of a macular fovea is increased by about 12.5% through arrangement of 18 layers of micro lenses and the diameter of a 48.71 mm defocusing area, the myopia progress is effectively delayed, and meanwhile, the myopia control effect is improved. The double-layer base layer design (the micro-lens rotates 30 degrees to be distributed) further optimizes optical signal distribution, enhances visual quality, and is suitable for teenagers and people using eyes for a long time.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of lens technology, and in particular to a small optical area nanolithography fusion multi-point defocus lens and a frame lens having the same. Background Technology

[0002] With the continuous advancement of science and technology, optical technology is being applied more and more widely in various fields, especially in microelectronics, biomedicine, and information storage. As a key technology for manufacturing micro and nanostructures, the precision and efficiency of nanolithography directly affect the performance of the final product. However, traditional nanolithography technology faces bottlenecks in resolution and processing speed, making it difficult to meet the ever-increasing demands for high precision and high efficiency.

[0003] On the other hand, multi-point defocus lens technology shows great potential in optical imaging and vision correction. By designing multiple defocus areas on the lens, multi-point defocus lenses can effectively improve visual quality and reduce eye strain. However, how to combine this technology with nanolithography to achieve more refined and efficient optical structure manufacturing has become a current research hotspot. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned shortcomings in the existing technology by proposing a small optical area nanolithography fusion multi-point defocusing lens and a frame lens incorporating the same.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] Design of a small optical area nanolithography fusion multi-point defocusing lens and a frame eyeglass lens having the same, including a lens body, the lens body comprising a base layer, a plurality of microlenses distributed on the surface of the base layer, the central area spacing diameter formed by the plurality of microlenses being 7.45 mm, the defocusing area diameter formed by the plurality of microlenses being 48.71 mm, and the plurality of microlenses being arranged in eighteen layers from the inside to the outside along the center position of the base layer.

[0007] The surface of the lens body is sequentially provided with an anti-aging layer, a high-temperature resistant layer, a blue light blocking layer, a waterproof layer, and an oil-proof layer. The anti-aging layer is bonded to the surface of the lens body with resin adhesive. A high-temperature resistant layer is coated on the other side of the anti-aging layer. A blue light blocking layer is bonded to the other side of the high-temperature resistant layer with resin adhesive. A waterproof layer is bonded to the other side of the blue light blocking layer with resin adhesive. An oil-proof layer is coated on the other side of the waterproof layer.

[0008] This solution achieves myopia management through a precisely arranged microlens structure. Its core lies in utilizing the defocus effect generated by multi-layer microlenses. The lens body consists of a base layer 1 and a base layer 2, with microlenses 1 and 2 arranged in a 30-degree offset rotation, forming a composite optical network. There are a total of 18 layers of microlenses in the central region (7.45 mm in diameter) and the defocus region (48.71 mm in diameter). Through gradient distribution design, a stronger defocus signal is generated in the retinal defocus sensitive area (10-20 degrees range). The defocus amount of microlenses 1 and 2 ranges from +3.00D to +6.00D.

[0009] When light passes through the microlens array, the central small optical zone (5-8 mm) creates a differential refractive power with the peripheral area. Compared to the traditional 9 mm optical zone, the small optical zone design increases the defocus angle of the fovea by 12.5%, thereby creating more defocus in the peripheral retina. This defocus can inhibit axial elongation and slow the progression of myopia. In addition, the staggered arrangement of the two layers of microlenses can reduce light scattering, ensuring clear central vision while enhancing the defocus effect, which is consistent with the myopia control mechanism of the "peripheral defocus theory".

[0010] In detail, the lens body also includes a base layer II, and a plurality of microlenses II are distributed on the surface of the base layer II. The distribution of the plurality of microlenses II on the base layer II is rotated by thirty degrees relative to the distribution of the plurality of microlenses I on the base layer I.

[0011] In detail, the anti-aging layer is made of silicon oxide material.

[0012] In detail, the high-temperature resistant layer is made of a transparent ceramic coating material.

[0013] In detail, the blue light blocking layer is made of indium tin oxide.

[0014] In detail, the waterproof layer is made of polyethylene material.

[0015] In detail, the oil-resistant layer is made of fluorocarbon polymer material.

[0016] The design scheme proposed in this utility model has the following beneficial effects in application:

[0017] 1. This solution adopts a 5 to 8 mm small optical zone design, which can generate more defocus in the retinal defocus sensitive area (10 to 20 degrees range) compared with the traditional 9 mm central optical zone, significantly improving the myopia control effect. Through the arrangement of 18 layers of microlenses and a defocus area diameter of 48.71 mm, the effective angle of the fovea is increased by about 12.5%, effectively slowing down the progression of myopia. At the same time, the double-layer base layer design (microlenses rotated 30 degrees) further optimizes the light signal distribution and enhances visual quality, making it suitable for teenagers and people who use their eyes for long periods of time.

[0018] 2. As described in point 1, the lens achieves comprehensive protection through a multi-layered composite material. The silicon dioxide anti-aging layer delays lens yellowing, the transparent ceramic coating is heat-resistant and adaptable to special environments, the indium tin oxide blue light blocking layer reduces damage from electronic screens, and the polyethylene waterproof layer and fluorocarbon oil-resistant layer enhance durability. This design balances optical performance and practicality, making it suitable for everyday, industrial, and kitchen scenarios, extending lens life and protecting eye health. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the lens of this utility model;

[0020] Figure 2 This is a schematic diagram of the distribution of the microlenses of this utility model;

[0021] Figure 3 This is a schematic diagram of the two-distribution microlens of this utility model;

[0022] Figure 4 This is a schematic diagram of microlens one and microlens two of this utility model wearing complementary microlenses for imaging.

[0023] In the diagram: 1. Base layer 1; 11. Microlens 1; 1001. Anti-aging layer; 1002. High temperature resistant layer; 1003. Anti-blue light layer; 1004. Waterproof layer; 1005. Oil-proof layer; 2. Base layer 2; 21. Microlens 1. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Reference Figures 1-4 The small optical region nanolithography fusion multi-point defocus lens and the frame eyeglass lens having it include a lens body, the lens body includes a base layer 1, the surface of the base layer 1 is distributed with a number of microlenses 11, the central area spacing diameter formed by the number of microlenses 11 is 7.45 mm, the defocus area diameter formed by the number of microlenses 11 is 48.71 mm, and the number of microlenses 11 is arranged in eighteen layers from the inside to the outside along the center position of the base layer 1.

[0026] Compared to the 9mm central optical zone, the 5 to 8 mm small optical zone design generates more defocus within a 10 to 20 degree range in the retinal defocus-sensitive area, providing better myopia management. Within the same line of sight, the angle acting on the fovea increases by approximately 12.5%.

[0027] The surface of the lens body is sequentially provided with an anti-aging layer 1001, a high-temperature resistant layer 1002, a blue light blocking layer 1003, a waterproof layer 1004, and an oil-proof layer 1005. The anti-aging layer 1001 is bonded to the surface of the lens body with resin adhesive. The other side of the anti-aging layer 1001 is coated with a high-temperature resistant layer 1002. The other side of the high-temperature resistant layer 1002 is bonded with a blue light blocking layer 1003 with resin adhesive. The other side of the blue light blocking layer 1003 is bonded with a waterproof layer 1004 with resin adhesive. The other side of the waterproof layer 1004 is coated with an oil-proof layer 1005.

[0028] It should be further explained that the lens body also includes a base layer 2, and the surface of the base layer 2 has a number of microlenses 21. The distribution of the microlenses 21 on the base layer 2 is set at a 30-degree rotation relative to the distribution of the microlenses 11 on the base layer 1. By equipping one person with two glasses, two pairs of glasses are sold to myopic patients at one time, and they are worn alternately every 2-4 weeks to achieve dynamic defocus intervention. This allows retinal cells to receive defocus stimulation at different times and to rest and recover in turn. The defocus amount of microlenses 11 and microlenses 21 is +3.00D to +6.00D.

[0029] It should be further noted that the anti-aging layer 1001 is made of silicon dioxide material, which prevents the lens material from aging and yellowing, and extends its service life.

[0030] It should be further noted that the high-temperature resistant layer 1002 is made of a transparent ceramic coating material, which improves the high-temperature resistance of the lens and is suitable for special industrial environments.

[0031] It should be further noted that the blue light blocking layer 1003 is made of indium tin oxide, which reduces blue light from electronic screens and relieves eye strain.

[0032] It should be further noted that the waterproof layer 1004 is made of polyethylene material, which can provide waterproof and moisture-proof protection for the protective structure close to the base layer, thereby extending its service life.

[0033] It should be further noted that the oil-resistant layer 1005 is made of fluorocarbon polymer material, which prevents oil stains from adhering and is suitable for kitchen or industrial environments.

[0034] Working principle: This solution achieves myopia management through a precisely arranged microlens structure. Its core lies in utilizing the defocus effect generated by multi-layer microlenses. The lens body includes a base layer 1 and a base layer 2, which are respectively distributed with microlenses 11 and 21 arranged in a 30-degree offset rotation, forming a composite optical network. There are a total of 18 layers of microlenses in the central area (7.45 mm in diameter) and the defocus area (48.71 mm in diameter). Through gradient distribution design, a stronger defocus signal is generated in the retinal defocus sensitive area (10-20 degree range).

[0035] When light passes through the microlens array, the central small optical zone (5-8 mm) and the peripheral area create a differential refractive power. Compared with the traditional 9 mm optical zone, the small optical zone design increases the defocus angle of the fovea by 12.5%, thereby creating more defocus in the peripheral area of ​​the retina. This defocus can inhibit axial elongation and slow down the progression of myopia. In addition, the microlenses with the double base layer staggered arrangement can reduce light scattering, ensuring clear central vision while enhancing the defocus effect, which is in line with the myopia control mechanism of the "peripheral defocus theory".

[0036] The five-layer composite coating on the lens surface achieves all-round protection through the superposition of material properties. The anti-aging layer 1001 (silicon oxide) serves as the base coating, which blocks ultraviolet rays and oxidation reactions through its high-density molecular structure, preventing the lens from yellowing. The high-temperature resistant layer 1002 (transparent ceramic coating) maintains the stability of the lens shape in high-temperature environments through the inert heat resistance properties of ceramics, making it suitable for industrial scenarios such as welding and metallurgy.

[0037] The blue light blocking layer 1003 (indium tin oxide) selectively absorbs harmful blue light in the 415-455nm wavelength range, reducing the damage to the retina caused by electronic screen radiation. The waterproof layer 1004 (polyethylene) uses hydrophobic molecular chains to form a barrier, preventing moisture from penetrating into the lens. The surface oil-resistant layer 1005 (fluorocarbon polymer) repels oil stains through its low surface energy properties, preventing kitchen or industrial oil stains from adhering. It also achieves multiple functions such as anti-aging, weather resistance, blue light filtering, and easy cleaning, extending the lens's lifespan and adapting to complex usage environments.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A small optic zone nano-lithography fused multi-point through-focus lens and frame spectacle lens having the same, comprising a lens body, characterized in that: The lens body comprises a base layer one (1), the surface of the base layer one (1) is distributed with a plurality of microlenses one (11), the center area formed by the plurality of microlenses one (11) has a spacing diameter of 7.45 mm, the defocus area formed by the plurality of microlenses one (11) has a diameter of 48.71 mm, and the plurality of microlenses one (11) are arranged in eighteen layers from the inside to the outside along the center position of the base layer one (1); The surface of the lens body is sequentially provided with an anti-aging layer (1001), a high-temperature-resistant layer (1002), a blue light-proof layer (1003), a waterproof layer (1004), and an oil-proof layer (1005), the surface of the lens body is adhered with the anti-aging layer (1001) through resin glue, the other side of the anti-aging layer (1001) is coated with the high-temperature-resistant layer (1002), the other side of the high-temperature-resistant layer (1002) is adhered with the blue light-proof layer (1003) through resin glue, the other side of the blue light-proof layer (1003) is adhered with the waterproof layer (1004) through resin glue, and the other side of the waterproof layer (1004) is coated with the oil-proof layer (1005).

2. The small optic zone nano-litho-graphic fused multi-focal through-focus spectacle lens and frame spectacle lens having the same of claim 1, wherein: The lens body further comprises a base layer two (2), the surface of the base layer two (2) is distributed with a plurality of microlenses two (21), the distribution of the plurality of microlenses two (21) on the base layer two (2) is arranged at a rotation angle of thirty degrees relative to the distribution of the plurality of microlenses one (11) on the base layer one (1), and the defocus amount of the microlenses one (11) and the microlenses two (21) is +3.00D to +6.00D.

3. The small optic zone nano-litho-graphic fused multi-focal through-focus spectacle lens and frame eyeglass having the same of claim 1, wherein: The anti-aging layer (1001) is made of silicon oxide material.

4. The small optic zone nano-litho-graphic fused multi-focal through-focus spectacle lens and frame eyeglass having the same of claim 1, wherein: The high-temperature-resistant layer (1002) is made of transparent ceramic coating material.

5. The small optic zone nano-litho-graphic fused multi-focal through-focus spectacle lens and frame eyeglass having the same of claim 1, wherein: The blue light-proof layer (1003) is made of indium tin oxide material.

6. The small optic zone nano-litho-graphic fused multi-focal through-focus spectacle lens and frame eyeglass having the same according to claim 1, wherein: The waterproof layer (1004) is made of polyethylene material.

7. The small optic zone nano-litho-graphic fused multi-focal through-focus spectacle lens of claim 1, wherein: The oil-proof layer (1005) is made of fluorocarbon polymer material.