A frosted sunglass lens

Abstract

The utility model discloses a kind of frosted sunglasses, with frosted base layer, frosted base layer is in the outside surface of lens base layer by injection molding and is formed frosted layer integrally, the roughness Ra of the outside frosted layer of frosted base layer is controlled in 0.8-1.5 microns range, a layer REVO film layer is formed in the outside vacuum evaporation of frosted base layer, a layer of antireflection film layer is formed in the inside vacuum evaporation of frosted base layer, a layer of hard wear-resistant layer is formed on the surface of REVO film layer and antireflection film layer each, a layer of waterproof layer is formed in the surface vacuum evaporation of two layers of hard wear-resistant layer respectively, a layer of oil-proof layer is formed in the surface vacuum evaporation of two layers of waterproof layer respectively.The utility model under the premise of keeping frosted texture, effectively reduce lens haze, provide good visual experience for user, and frosted texture is stable, suitable for doing high degree of lens, optical performance is excellent, and service performance is reliable, luminousness reaches 13.42%, reflectivity reaches front 12.67%, back 3.64%, haze is less than or equal to 1.5%, and definition is greater than or equal to 28.

Description

Technical Field

[0001] This utility model relates to the technical field of lenses, specifically to a frosted sunglasses lens. Background Technology

[0002] As is well known, sunglasses primarily protect the eyes from ultraviolet (UV) rays and can also serve a decorative purpose, satisfying people's pursuit of fashion. Traditional sunglasses lenses are mostly made of ordinary glass or plastic with an optical coating. The main problem with these lenses is that in strong sunlight, they often suffer from strong incident light and significant glare, affecting visual comfort and easily causing eye fatigue. To address the shortcomings of traditional sunglasses lenses, the inventor previously researched and developed a frosted sunglasses lens. This involves spraying paint dots onto the surface of the lens substrate to form a frosted layer. This frosted layer softens the incident light perceived by the eye, but the high degree of haze does not provide a good visual effect and cannot accommodate other functional coatings. Currently, frosted lenses are scarce in the market. A small number of existing samples, in addition to using the aforementioned sandblasting and painting processes, also employ a composite injection molding process using a frosted film. However, these processes suffer from significant drawbacks such as complex manufacturing processes, insufficient film adhesion (e.g., easy delamination after boiling), and unsuitability for high-curvature lenses, and similarly, cannot accommodate other functional coatings. In view of this, the inventors continued to conduct in-depth research and developed a new type of frosted sunglasses lens, which led to this invention. Utility Model Content

[0003] This invention aims to solve the problems of insufficient film adhesion, high haze, narrow application range, and poor structural stability of existing frosted sunglass lenses, and to provide a frosted sunglass lens with reasonable structural design, stable frosted texture, excellent optical performance, and reliable performance.

[0004] To achieve the above objectives, the solution of this utility model is: A frosted sunglasses lens has a frosted base layer, which is integrally formed on the outer surface of the lens base layer by injection molding. The roughness Ra of the outer frosted layer of the frosted base layer is controlled within the range of 0.8-1.5 micrometers. A REVO film layer is formed by vacuum evaporation on the outer side of the frosted base layer, and an anti-reflective film layer is formed by vacuum evaporation on the inner side of the frosted base layer. A hardened abrasion-resistant layer is formed on the surface of both the REVO film layer and the anti-reflective film layer. A waterproof layer is formed by vacuum evaporation on the surface of each of the two hardened abrasion-resistant layers, and an oil-resistant layer is formed by vacuum evaporation on the surface of each of the two waterproof layers.

[0005] The material of the frosted base layer is PC or PA.

[0006] The thickness of the frosted base layer is 1.5-2.5 mm.

[0007] The REVO film is composed of alternating layers of titanium pentoxide and silicon dioxide.

[0008] The thickness of the REVO film is 80-150 nm.

[0009] The thickness of the antireflective coating is 90-110 nm.

[0010] The thickness of the hardened wear-resistant layer is 3-8 μm.

[0011] The thickness of the waterproof layer is 8-15 nm.

[0012] The thickness of the oil-resistant layer is 8-15 nm.

[0013] By adopting the above structure, this invention directly injection molds the frosted base layer, forming the lens base and frosted layer integrally. This ensures a stable frosted texture and avoids the adhesion problems caused by using frosted film lamination. Furthermore, this invention controls the roughness Ra of the frosted layer within the range of 0.8-1.5 micrometers, effectively reducing lens haze while maintaining the frosted texture, providing users with a good visual experience. In addition, the directly injection molded frosted base layer is suitable for making high-curvature lenses, and other functional layers such as REVO coatings and anti-reflective coatings can be added on top to enhance the lens's functionality. This invention exhibits excellent optical performance and reliable operation. Testing of the finished product shows that the lens transmittance reaches 13.42%, reflectivity reaches 12.67% on the front and 3.64% on the back, haze ≤1.5%, and clarity ≥28. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments are briefly described below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 yes Figure 1 A magnified view of a portion of the image; Figure 3 This is a transmittance curve of this utility model; Figure 4 This is the reflectance curve of this utility model.

[0016] Label Explanation 1. Frosted base layer, 11. Lens base layer, 12. Frosted layer, 2. REVO coating, 3. Anti-reflective coating, 4. Hardened and wear-resistant layer, 5. Waterproof layer, 6. Oil-proof layer. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0018] It should be noted that the terms front, back, inside, outside, top, bottom, left, right, first, second, third, etc. are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the technical features indicated, unless otherwise explicitly defined.

[0019] like Figures 1 to 4 As shown, this utility model discloses a frosted sunglasses lens, which has an injection-molded frosted base layer 1. The frosted base layer 1 is integrally formed into a frosted layer 12 directly on the outer surface of the lens base layer 11 through an injection mold. The injection molding material of the frosted base layer 1 is PC material or PA material. The thickness of the frosted base layer 1 is 1.5-2.5mm. The roughness Ra of the outer frosted layer 12 of the frosted base layer 1 is controlled within the range of 0.8-1.5 micrometers.

[0020] A REVO film 2 is formed by vacuum evaporation on the outer side of the frosted substrate layer 1. The REVO film 2 is composed of alternating layers of titanium pentoxide and silicon dioxide, and the thickness of the REVO film 2 is 80-150nm.

[0021] An antireflective coating layer 3 is formed by vacuum evaporation on the inner side of the frosted substrate layer 1, and the thickness of the antireflective coating layer 3 is 90-110 nm.

[0022] A layer of hardening and strengthening liquid is attached to the surface of both the REVO film layer 2 and the antireflective film layer 3 to form a hardened and wear-resistant layer 4 with a thickness of 3-8 μm.

[0023] A waterproof layer 5 is formed on the surface of the two hardened wear-resistant layers 4 by vacuum evaporation, and the thickness of the waterproof layer 5 is 8-15nm.

[0024] An oil-proof layer 6 is formed on the surface of the two outer waterproof layers 5 by vacuum evaporation, with a thickness of 8-15nm.

[0025] Taking PC lenses as an example, the specific process steps for manufacturing this utility model are as follows: The first step is to design a mold core with a specific frosting degree, which will transfer the frosting texture to the surface of the lens base layer 11 during the injection molding process; the frosting degree Ra of the mold core can be adjusted within the range of 0.8-1.5 micrometers as needed.

[0026] The second step is to dehumidify the plastic granules and then use the mold described in the first step to injection mold them to form a frosted base layer 1 with a thickness of 1.5-2.5mm. It can be designed as a curved surface structure with different curvatures according to requirements.

[0027] The third step is to form a REVO film layer 2 on the outside of the frosted base layer 1 by vacuum evaporation. The thickness of the REVO film layer 2 is 80-150nm, which gives the lens a dazzling effect. The REVO film layer 2 is made of alternating layers of titanium pentoxide and silicon dioxide. Different color effects can be produced by adjusting the thickness of each film layer. Furthermore, an anti-reflective coating layer 3 is formed on the inner side of the frosted substrate layer 1 by vacuum evaporation, which reduces the reflected light from the back of the lens, increases the lens transmittance, and makes the vision clearer. The thickness of the anti-reflective coating layer 3 is 90nm-110nm.

[0028] The fourth step involves attaching a layer of hardening and strengthening liquid to the outer side of the REVO coating layer 2 and the inner side of the antireflective coating layer 3. By lifting and soaking, an outer hardening and abrasion-resistant layer 4 and an inner hardening and abrasion-resistant layer 4 are formed. The thickness of the hardening and abrasion-resistant layer 4 is 3-8μm, which gives the lens abrasion-resistant and scratch-resistant effect.

[0029] The fifth step involves forming a waterproof layer 5 on both the inner and outer sides of the inner and outer hardened wear-resistant layers 4 through vacuum evaporation, which serves to provide waterproofing. The thickness of the waterproof layer 5 is 8-15nm.

[0030] The sixth step is to form an oil-resistant layer 6 on the inner and outer sides of the inner and outer waterproof layers 5 by vacuum evaporation, which serves to prevent oil damage. The thickness of the oil-resistant layer 6 is 8-15nm.

[0031] This completes the processing and production of a frosted sunglasses lens according to this utility model.

[0032] This invention directly forms a frosted layer 12 on the lens base layer 11 through injection molding, creating a frosted base layer 1. This ensures a stable frosted texture on the lens and avoids the adhesion problems caused by using frosted film lamination. Furthermore, this invention controls the roughness Ra of the frosted layer 12 within the range of 0.8-1.5 micrometers, effectively reducing lens haze while maintaining the frosted texture, providing users with a good visual experience. In addition, the directly injection-molded frosted base layer 1 is suitable for high-curvature lenses, and other functional layers such as a REVO coating 2, an anti-reflective coating 3, a hardened and abrasion-resistant layer 4, a waterproof layer 5, and an oil-resistant layer 6 can be added on top to enhance the lens's functionality. This invention provides a frosted sunglasses lens with excellent optical performance and reliable operation. The finished product has been tested and found to be... Figure 3 and Figure 4 As shown, the lens has a light transmittance of 13.42%, a reflectance of 12.67% on the front and 3.64% on the back, a haze of ≤1.5%, and a clarity of ≥28.

[0033] The above description is merely an example of the implementation of this utility model and is not intended to limit the scope of protection of this utility model. It should be noted that any equivalent changes made by those skilled in the art after reading this specification, based on the design concept of this case, shall fall within the scope of protection of this case.

Claims

1. A frosted sunglasses lens, characterized in that: It has a frosted base layer, which is formed integrally on the outer surface of the lens base layer by injection molding. The roughness Ra of the outer frosted base layer is controlled within the range of 0.8-1.5 micrometers. A REVO film layer is formed by vacuum evaporation on the outer side of the frosted base layer, and an anti-reflective film layer is formed by vacuum evaporation on the inner side of the frosted base layer. A hardened wear-resistant layer is formed on the surface of both the REVO film layer and the anti-reflective film layer. A waterproof layer is formed by vacuum evaporation on the surface of each of the two hardened wear-resistant layers, and an oil-resistant layer is formed by vacuum evaporation on the surface of each of the two waterproof layers.

2. The frosted sunglasses lens as described in claim 1, characterized in that: The material of the frosted base layer is PC or PA.

3. The frosted sunglasses lens as described in claim 1, characterized in that: The thickness of the frosted base layer is 1.5-2.5 mm.

4. The frosted sunglasses lens as described in claim 1, characterized in that: The REVO film is composed of alternating layers of titanium pentoxide and silicon dioxide.

5. A frosted sunglasses lens as described in claim 1, characterized in that: The thickness of the REVO film is 80-150 nm.

6. The frosted sunglasses lens as described in claim 1, characterized in that: The thickness of the antireflective coating is 90-110 nm.

7. A frosted sunglasses lens as described in claim 1, characterized in that: The thickness of the hardened wear-resistant layer is 3-8 μm.

8. A frosted sunglasses lens as described in claim 1, characterized in that: The thickness of the waterproof layer is 8-15 nm.

9. A frosted sunglasses lens as described in claim 1, characterized in that: The thickness of the oil-resistant layer is 8-15 nm.

Images