Point diffusion lens

Abstract

The utility model discloses a point diffusion lens which comprises a lens body, the lens body comprises a master slice and a protective layer, the protective layer is arranged on the outer side of the master slice, a central area is arranged on the master slice, a middle transition area is arranged on the outer side of the central area, and an external diffusion area is arranged on the outer side of the central transition area. A smooth transition from the central area to the external diffusion area can be ensured, abrupt changes in vision are avoided, visual interference can be reduced by gradually increasing the density of the point diffusion structures in the middle transition area, and therefore obvious boundaries from the central area to the external diffusion area can be avoided, and the performance of the device is improved. According to the diffusion lens provided by the utility model, a wearer can obtain continuous and smooth visual experience under different sight distances, and the protection layer is arranged on the outer side of the master slice, so that the diffusion lens not only can maintain the core optical performance, but also can obtain multiple protection functions, thereby greatly improving the comprehensive performance and prolonging the service life of the lens.

Description

Technical Field

[0001] This utility model relates to the field of lens technology, and more specifically, to a dot diffusion lens. Background Technology

[0002] Dot diffuser lenses are specially designed lenses intended to reduce the contrast of the image on the retina through scattering and diffraction techniques, thereby slowing the progression of myopia. A typical dot diffuser lens consists of two key parts: a central light-gathering zone and a surrounding dot diffuser zone. The central light-gathering zone is the central part of the lens, designed to precisely correct the wearer's vision and ensure a clear visual experience. The dot diffuser zone surrounding the central zone contains tiny optical structures that disperse incident light, creating a softer light distribution, thus reducing overall contrast and lessening the burden on the eye's accommodation.

[0003] A search of Chinese patent CN221056778U reveals a dot diffusion film and a dot diffusion lens. This lens, by setting and preparing an optical thin film, can easily create a scatterer with a consistent depth on a planar thin film. The outer layer of this functional thin film has a protective layer, which not only enables the lens itself to balance the contrast, but also protects the dot diffusion area.

[0004] However, some shortcomings still exist in dot diffusion films and lenses. Due to the lack of an effective transition zone—the shift from the central light-transmitting area to the dot diffusion area is too abrupt—this sudden change leads to discontinuity in visual experience, causing discomfort for the wearer, especially when the gaze moves from the center to the periphery. This discomfort may affect the user's daily experience. Currently, no effective solution has been proposed to address these technical problems. Utility Model Content

[0005] In view of the problems in the related technologies, this utility model proposes a point diffusion lens to overcome the above-mentioned technical problems existing in the existing related technologies.

[0006] Therefore, the specific technical solution adopted by this utility model is as follows:

[0007] A dot diffusion lens includes a lens body, which includes a master lens and a protective layer. The protective layer is disposed on the outside of the master lens. The master lens has a central area, an intermediate transition area is disposed outside the central area, and an outer diffusion area is disposed outside the intermediate transition area.

[0008] Furthermore, point diffusion structures are provided on the intermediate transition zone and the outer diffusion zone, with an effective diameter of 0.05 mm to 1 mm.

[0009] Furthermore, in order to provide a smooth transition from the clear visual zone to the diffused zone and ensure the wearer's visual comfort, the density of the dot diffusion structure in the intermediate transition zone gradually increases.

[0010] Furthermore, to provide the most comprehensive protection, including reducing reflection, improving durability, maintaining cleanliness, and blocking ultraviolet rays, the protective layer includes a scratch-resistant coating, an anti-ultraviolet coating, an anti-reflective coating, and a waterproof coating. The scratch-resistant coating is located at the bottom of the protective layer, the anti-ultraviolet coating is located outside the scratch-resistant coating, the anti-reflective coating is located outside the anti-ultraviolet coating, and the waterproof coating is located outside the anti-reflective coating.

[0011] Furthermore, the scratch-resistant coating is made of acrylic ester, and the UV-resistant coating is made of titanium dioxide.

[0012] Furthermore, the anti-reflective coating is made of silicon dioxide, and the waterproof coating is made of polytetrafluoroethylene.

[0013] Furthermore, in order to ensure that the lens provides clear central vision while achieving a smooth transition and effective light diffusion in the outer diffusion zone, the effective diameter of the central zone is 3mm to 5mm, and the width of the intermediate transition zone is 2mm to 4mm.

[0014] The beneficial effects of this utility model are as follows:

[0015] (1) By setting an intermediate transition zone, a smooth transition from the central area to the outer diffusion zone can be ensured, avoiding abrupt changes in vision. Furthermore, by gradually increasing the density of the dot diffusion structure in the intermediate transition zone, visual interference can be reduced. This avoids obvious boundaries between the central area and the outer diffusion zone, allowing the wearer to obtain a more continuous and smooth visual experience at different viewing distances.

[0016] (2) By setting a protective layer on the outside of the lens, the diffuser lens can not only maintain its core optical performance, but also obtain multiple protective functions, thereby greatly improving the overall performance and service life of the lens. The addition of these coatings enables the lens to provide a clear and stable visual experience while having multiple practical functions such as anti-reflection, anti-scratch, waterproof and oil-proof and UV protection. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1This is a structural diagram of a point diffusion lens according to an embodiment of the present utility model.

[0019] Figure 2 This is a front view of a dot diffuser lens according to an embodiment of the present utility model.

[0020] Figure 3 This is a structural diagram of a point diffusion lens protective layer according to an embodiment of the present utility model.

[0021] Figure 4 This is a structural diagram of a dot diffusion lens master film according to an embodiment of the present utility model.

[0022] In the picture:

[0023] 1. Lens body; 2. Master lens; 3. Protective layer; 301. Scratch-resistant coating; 302. UV-resistant coating; 303. Anti-reflective coating; 304. Water-resistant oil coating; 4. Central area; 5. Intermediate transition area; 6. External diffusion area; 7. Point diffusion structure. 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. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] According to an embodiment of the present invention, a dot diffusion lens is provided.

[0026] Example 1

[0027] like Figures 1-4As shown, the dot diffusion lens according to an embodiment of the present invention includes a lens body 1, which includes a mother lens 2 and a protective layer 3. The protective layer 3 is disposed on the outside of the mother lens 2. The mother lens 2 has a central area 4, and an intermediate transition area 5 is disposed on the outside of the central area 4. By setting the intermediate transition area 5, the lens has a better connection between different areas, thereby improving the overall visual experience. When the wearer looks at distant and near objects, they will not feel uncomfortable due to the abrupt changes in the lens design. An outer diffusion area 6 is disposed on the outside of the intermediate transition area 5. The effective diameter of the central area 4 is 3mm to 5mm, and the width of the intermediate transition area 5 is 2mm to 4mm. Dot diffusion structures 7 are disposed on the intermediate transition area 5 and the outer diffusion area 6. The effective diameter of the dot diffusion structures 7 is 0.05mm to 1mm, and the density of the dot diffusion structures 7 in the intermediate transition area 5 gradually increases. The protective layer 3 includes an anti-scratch coating 301, an anti-ultraviolet coating 302, an anti-reflective coating 303, and a waterproof coating 304. The anti-scratch coating 301 is disposed at the bottom of the protective layer 3, and the anti-ultraviolet coating 302 is disposed at the bottom of the anti-scratch area 5. On the outside of coating 301, anti-reflective coating 303 is disposed outside of anti-UV coating 302, and waterproof oil coating 304 is disposed outside of anti-reflective coating 303. The scratch-resistant coating 301 is made of acrylic ester, which has high hardness and can effectively prevent scratches and wear on the lens surface. Acrylic ester coatings usually have good transparency and will not significantly affect the optical performance of the lens. The anti-UV coating 302 is made of titanium dioxide, which is a highly efficient UV absorber and can effectively block UVA and UVB radiation. The anti-reflective coating 303 is made of silicon dioxide, which can significantly reduce reflection on the lens surface, improve light transmittance, reduce glare, and improve visual clarity. Silicon dioxide coatings also have good mechanical strength and chemical stability and are not easily worn. The waterproof oil coating 304 is made of polytetrafluoroethylene (PTFE), which has excellent hydrophobic and oleophobic properties, effectively preventing water droplets and oil stains from adhering to the lens surface. PTFE also has good abrasion resistance and is not easily damaged even after repeated wiping.

[0028] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0029] In practical applications, by setting an intermediate transition zone 5 in the middle of the lens, the density of the dot diffusion structure 7 gradually increases in the intermediate transition zone 5. This gradual process helps to smooth the visual experience and reduce interference and discomfort caused by uneven light distribution. By finely adjusting the arrangement and density of the dot diffusion structure 7 in the transition zone, the degree of light scattering can be precisely controlled, thereby maintaining good visual quality while ensuring sufficient light diffusion effect. This design not only optimizes the visual experience but also enhances the overall functionality and aesthetics of the lens body 1. Wearers can enjoy a more continuous and smooth visual effect when looking at objects at a distance or near, reducing the visual impact caused by the obvious boundary between the central area 4 and the outer diffusion area 6.

[0030] In summary, by utilizing the above-mentioned technical solution of this utility model, by setting the intermediate transition zone 5, a smooth transition from the central zone 4 to the outer diffusion zone 6 can be ensured, avoiding abrupt visual changes. Furthermore, by gradually increasing the density of the dot diffusion structure 7 in the intermediate transition zone 5, visual interference can be reduced. This avoids a clear boundary between the central zone 4 and the outer diffusion zone 6, allowing the wearer to obtain a more continuous and smooth visual experience at different viewing distances. Moreover, by setting a protective layer 3 on the outside of the mother lens 2, the diffusion lens not only maintains its core optical performance but also obtains multiple protective functions, thereby greatly improving the overall performance and service life of the lens. The addition of these coatings allows the lens to provide a clear and stable visual experience while possessing multiple practical functions such as anti-reflection, scratch resistance, water and oil resistance, and UV protection.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dot diffusion lens, characterized in that, The lens body (1) includes a mother lens (2) and a protective layer (3). The protective layer (3) is located on the outside of the mother lens (2). The mother lens (2) has a central area (4), an intermediate transition area (5) is located outside the central area (4), and an external diffusion area (6) is located outside the intermediate transition area (5).

2. A dot diffusion lens according to claim 1, characterized in that, The intermediate transition zone (5) and the outer diffusion zone (6) are provided with point diffusion structures (7), and the effective diameter of the point diffusion structures (7) is 0.05 mm to 1 mm.

3. A dot diffusion lens according to claim 2, characterized in that, The density of the point diffusion structure (7) in the intermediate transition region (5) gradually increases.

4. A dot diffusion lens according to claim 1, characterized in that, The protective layer (3) includes a scratch-resistant coating (301), an anti-ultraviolet coating (302), an anti-reflective coating (303), and a waterproof oil coating (304). The scratch-resistant coating (301) is located at the bottom of the protective layer (3). The anti-ultraviolet coating (302) is located outside the scratch-resistant coating (301). The anti-reflective coating (303) is located outside the anti-ultraviolet coating (302). The waterproof oil coating (304) is located outside the anti-reflective coating (303).

5. A dot diffusion lens according to claim 4, characterized in that, The scratch-resistant coating (301) is made of acrylate, and the UV-resistant coating (302) is made of titanium dioxide.

6. A dot diffusion lens according to claim 4, characterized in that, The anti-reflective coating (303) is made of silicon dioxide, and the waterproof oil coating (304) is made of polytetrafluoroethylene.

7. A dot diffusion lens according to claim 1, characterized in that, The effective diameter of the central area (4) is 3mm to 5mm, and the width of the intermediate transition area (5) is 2mm to 4mm.

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