High-performance nano anti-fog coated lens

Abstract

The utility model discloses a high-performance nanometer antifogging coated lens which comprises a base material layer, strengthening layers are attached to the front side and the rear side of the base material layer respectively, a functional coating layer is attached to the side, away from the base material layer, of each strengthening layer, and a nanometer antifogging coating layer is attached to the side, away from the base material layer, of each functional coating layer. The functional coating layer is an REVO coating layer, an antireflection coating layer or a mercury coating layer, and a film layer, making contact with the nanometer anti-fog coating layer, of the functional coating layer is a silicon dioxide layer. The high-performance nano anti-fog coated lens has excellent anti-fog performance, also has multiple functions of scratch resistance, impact resistance, pollution resistance, ultraviolet resistance or colorful appearance and the like, meets the requirements of users on different performances of the lens, and has relatively high market competitiveness.

Description

Technical Field

[0001] The utility model relates to the technical field of nano anti-fog coating lenses, in particular to a high-performance nano anti-fog coating lens. Background Art

[0002] In the field of eyeglass lenses, with the improvement of people's quality of life and the increase in diversified demands, traditional lenses can no longer meet the modern consumer's pursuit of high performance and versatility. In particular, in cold or humid environments, the problem of lens fogging has been a constant problem for many users, seriously affecting the wearer's visual experience and safety. Although some anti-fog lenses have appeared on the market, using an anti-fog film layer to achieve a uniform spread of water vapor on the lens surface rather than condensation into droplets, this technology is often limited to a single anti-fog function and ignores other challenges that lenses may face during use, such as scratches, impacts, contamination, and UV protection.

[0003] Furthermore, with the diversification of eyewear design styles, consumers are increasingly demanding lens appearance, hoping that lenses not only meet basic optical performance and protective functions but also offer a stylish and colorful appearance. However, traditional lens production processes often struggle to integrate multiple functions simultaneously on the same lens, resulting in single-function products and insufficient market competitiveness. Utility Model Content

[0004] The purpose of the utility model is to provide a high-performance nano anti-fog coating lens with excellent anti-fog performance, while also having multiple functions such as scratch resistance, impact resistance, pollution resistance, UV resistance or colorful appearance.

[0005] To achieve the above objectives, the present invention provides a solution: a high-performance nano-anti-fog coating lens, comprising a substrate layer, a strengthening layer attached to both the front and rear sides of the substrate layer, a functional coating layer attached to the side of the strengthening layer away from the substrate, and a nano-anti-fog coating layer attached to the side of the functional coating layer away from the substrate layer;

[0006] The functional coating layer is a REVO coating layer, an anti-reflection coating layer or a mercury coating layer.

[0007] Furthermore, the thickness of the nano anti-fog coating layer is in the range of 2-4 μm.

[0008] Furthermore, the REVO coating layer is formed by stacking multiple layers of titanium pentoxide layers and silicon dioxide layers in sequence and alternately.

[0009] Furthermore, the anti-reflection coating layer is formed by stacking a titanium pentoxide layer and a silicon dioxide layer in sequence.

[0010] Furthermore, in the anti-reflection coating layer, the thickness of the titanium pentoxide layer is 135nm-145nm, and the thickness of the silicon dioxide layer is 850nm-950nm.

[0011] Furthermore, the mercury coating layer is formed by stacking a chromium layer and a silicon dioxide layer in sequence.

[0012] Furthermore, in the mercury coating layer, the thickness of the chromium layer is 55nm-65nm, and the thickness of the silicon dioxide layer is 45nm-55nm.

[0013] Furthermore, the functional coating layer on the front side of the substrate layer is a REVO coating layer, and the functional coating layer on the back side of the substrate layer is an anti-reflection coating layer.

[0014] Furthermore, the functional coating layer on the front side of the substrate layer is a mercury coating layer, and the functional coating layer on the back side of the substrate layer is an anti-reflection coating layer.

[0015] Furthermore, the substrate layer is made of PC, nylon or TAC.

[0016] After adopting the above solution, the beneficial effects of the utility model are:

[0017] The high-performance nano-anti-fog coating lens of this utility model comprises a substrate layer, a strengthening layer attached to both sides of the substrate layer, a functional coating layer, and a nano-anti-fog coating layer. This lens is not limited to a single nano-anti-fog effect, but while maintaining a good nano-anti-fog effect, it also has multiple functions such as scratch resistance, impact resistance, anti-pollution, anti-UV resistance, and a colorful appearance. This can meet users' demand for multifunctional lenses and significantly improve the market competitiveness of this lens. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the layered structure of the utility model's high-performance nano anti-fog coating lens;

[0019] Figure 2 This is a schematic diagram of the layered structure of a high-performance nano-anti-fog coating lens in Example 1 of the utility model.

[0020] Figure 3 This is a schematic diagram of the layered structure of a high-performance nano-anti-fog coating lens in Example 2 of the present utility model.

[0021] Description of labels:

[0022] 1. Base material layer; 2. Strengthening layer; 3. Functional coating layer; 31. REVO coating layer; 32. Anti-reflective coating layer; 33. Mercury coating layer; a. Titanium pentoxide layer; b. Silicon dioxide layer; c. Chromium layer; 4. Nano anti-fog coating layer. DETAILED DESCRIPTION

[0023] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] The utility model provides a high-performance nano anti-fog coating lens, such as Figure 1 As shown, it includes a substrate layer 1, with a reinforcement layer 2 attached to both the front and back sides of the substrate layer 1, a functional coating layer 3 attached to the side of the reinforcement layer 2 away from the substrate, and a nano anti-fog coating layer 4 attached to the side of the functional coating layer 3 away from the substrate layer 1. The structure of each layer is described as follows:

[0025] The substrate layer 1, as the core of the lens, is made of a highly light-transmitting and durable material, such as PC (polycarbonate), nylon, or TAC (triacetyl cellulose). The thickness of the substrate layer 1 is controlled within a range of 1-10 mm.

[0026] Strengthening layer 2, tightly adhered to the front and back sides of substrate layer 1, is formed by immersing the substrate in a strengthening liquid composed of a mixture of silicone and alcohol ether. Strengthening layer 2 enhances the hardness and abrasion resistance of the lens surface, effectively protecting it from scratches and damage from daily use. Its chemical stability improves the overall durability of the lens, ensuring that the lens remains as bright and clean as new for an extended period of time, thereby extending its service life.

[0027] The functional coating layer 3 is attached to the strengthening layer 2. This layer can be designed according to specific needs, such as adding scratch resistance, water resistance, and dust resistance, to further enhance the overall performance of the lens. In this utility model, the functional coating layer 3 includes various types, including a REVO coating layer 31, an anti-reflective coating layer 32, and a mercury coating layer 33. Each layer performs a different function in the lens. The type of functional coating layer 3 on the front and back sides of the substrate layer 1 can be freely selected according to needs.

[0028] REVO coating is a film that creates a mercury-like texture and possesses multiple functions. It resists solar radiation, effectively blocks UV rays, and protects the eyes from harm. Furthermore, REVO coating reduces glare and improves visual clarity, providing a better visual experience for outdoor activities like cycling. In this utility model, the REVO coating layer 31 is composed of multiple layers of titanium pentoxide layers (a) and silicon dioxide layers (b) stacked in sequence and alternatingly.

[0029] Anti-reflection coatings, also known as anti-reflection coatings, utilize the interference phenomenon of light. By depositing one or more layers of thin films of a specific thickness on the lens surface, they create interference between incident and reflected light, thereby canceling out or weakening the intensity of the reflected light, thereby improving the lens's transmittance and clarity. In the present invention, the anti-reflection coating layer 32 is composed of a titanium pentoxide layer a and a silicon dioxide layer b stacked in sequence. The thickness of the titanium pentoxide layer a is 135-145 nm, and the thickness of the silicon dioxide layer b is 850-950 nm.

[0030] Mercury coating is a process in which metal vapor is deposited onto the lens surface in a vacuum environment using vacuum electroplating. While the primary purpose of mercury coating is decorative, it also provides UV protection and strong light blocking properties. In this utility model, the mercury coating layer 33 is composed of a stack of chromium layer c and silicon dioxide layer b. The thickness of the chromium layer c is 55-65 nm, and the thickness of the silicon dioxide layer b is 45-55 nm.

[0031] The last layer of the functional coating layer 3 close to the nano anti-fog coating layer 4 is a silicon dioxide layer b. Silicon dioxide has good chemical stability and hydrophilicity, which helps the nano anti-fog coating layer 4 to adhere.

[0032] The nano-anti-fog coating layer 4 is attached to the functional coating layer 3. This is done using a spraying process, where a nozzle atomizes the nano-anti-fog liquid into tiny particles. These particles adhere to the outermost silica layer b on both the front and back surfaces of the lens. After spraying, the lens can be cured using a different curing method depending on the conditions. Natural curing requires 1-2 days at room temperature to allow the nano-anti-fog liquid to fully fuse with the silica layer b and form a stable structure. For more efficient curing, a thermal reaction can be used, completing the curing process in just 30 minutes. Regardless of the method, an extremely thin and uniform nano-scale microporous structure, approximately 2-4μm thick, is ultimately created on the lens surface. These micropores rapidly absorb and disperse moisture from the lens surface, effectively preventing condensation into fog droplets. This maintains a clear field of view and allows the lens to quickly regain clarity even in humid environments with large temperature fluctuations, without affecting its usability.

[0033] Example 1:

[0034] This embodiment provides a high-performance nano anti-fog coating lens, referring to Figure 2 The lens comprises a substrate layer 1, a strengthening layer 2, a functional coating layer 3, and a nano-anti-fog coating layer 4. The functional coating layer 3 on the front side of the substrate layer 1 is a REVO coating layer 31, which is used to improve the lens's radiation resistance, water resistance, and colorful appearance. From the substrate layer 1 outward (in the coating direction), the REVO coating layer 31 comprises, in the following order: 120nm titanium pentoxide layer a, 240nm silicon dioxide layer b, 150nm titanium pentoxide layer a, 180nm silicon dioxide layer b, 700nm titanium pentoxide layer a, and 550nm silicon dioxide layer b.

[0035] The functional coating 3 on the backside of substrate layer 1 is an anti-reflective coating 32, which reduces reflected light from the lens, improving light transmittance and color saturation. From substrate layer 1 outward (in the coating direction), the anti-reflective coating 32 consists of a 140nm thick titanium pentoxide layer a and a 900nm thick silicon dioxide layer b.

[0036] The high-performance nano-anti-fog coating lens of this embodiment is a REVO anti-fog lens that has high wear resistance, high perspective, high anti-fog ability, low reflectivity, and good appearance. The performance test results are shown in Table 1.

[0037] Example 2:

[0038] The difference between this embodiment and embodiment 1 is that, Figure 3 In this embodiment, the functional coating layer 3 on the front side of the substrate layer 1 is a mercury coating layer 33, which is used to improve the lens's UV protection and strong light blocking properties. The mercury coating layer 33 is composed of a 60nm chromium layer c and a 50nm silicon dioxide layer b, extending outward from the substrate layer 1 (in the coating direction).

[0039] The functional coating 3 on the backside of substrate layer 1 is an anti-reflective coating 32, which reduces reflected light from the lens, improving light transmittance and color saturation. From substrate layer 1 outward (in the coating direction), the anti-reflective coating 32 consists of a 130nm thick titanium pentoxide layer a and an 850nm thick silicon dioxide layer b.

[0040] The high-performance nano-anti-fog coated lens of this embodiment is a mercury-coated anti-fog lens that has high wear resistance, high perspective, high anti-fog ability, low reflectivity, and a colorful appearance. The performance test results are shown in Table 1.

[0041] Example 3: Performance Test

[0042] The performance index testing standards of this utility model high-performance nano anti-fog coating lens are as follows:

[0043] The spectrometer detects that the perspective rate is greater than 80%, indicating that the lens has high optical transparency.

[0044] The spectrometer detects that TV is ≤0.5% at UV400nm, that is, at a wavelength of 400nm, the ultraviolet transmittance of the lens is less than or equal to 0.5%, indicating that it has good anti-ultraviolet performance.

[0045] Abrasion resistance test: The hardness tester uses an eraser and 500g gauze to increase the weight and repeat back and forth 25 times. No obvious scratches are found on the surface, indicating that the lens has good abrasion resistance and scratch resistance and high strength.

[0046] Adhesion test: scratch 100 1mm squares on the lens surface. 2 Use 3M tape to stick to the marked squares and flatten them, squeeze out the air between the tape and the lens surface, peel off the tape and tear it off at a 90-degree angle. If it does not fall off when touched, it means that the film layer of the lens has strong adhesion.

[0047] Impact test: In a drop ball tester, the lens withstood the impact of a 22mm diameter, 45g steel ball falling freely from a height of 1.3 meters without any cracks, demonstrating its high strength and strong impact resistance.

[0048] Contact angle: The contact angle between the convex surface of the lens and water was measured 5 times in a group. The average contact angle was less than 5°, indicating strong hydrophilicity and anti-fogging.

[0049] Anti-fog effect: Put the lens into (23±5)℃ distilled water for 2 hours (make sure that there is at least 5cm per square meter of the sample surface 3 After drying for 12 hours, place the lens on a (50±0.5)℃ hot water container. If there is no fogging for 8 minutes, it indicates that the lens has good anti-fog performance.

[0050] Three samples of each of the high-performance nano-anti-fog coated lenses obtained in Example 1 and Example 2 were selected for performance testing, and the results are shown in Table 1. The results show that all samples meet the standards.

[0051] Table 1

[0052]

[0053] To further illustrate various embodiments, the present invention is provided with accompanying drawings. These drawings form part of the disclosure of this invention and are primarily used to illustrate the embodiments and, in conjunction with the relevant descriptions in the specification, to explain the operating principles of the embodiments. By referring to these drawings, those skilled in the art will be able to understand other possible implementations and the advantages of this invention. Furthermore, directions such as up, down, front, back, left, and right mentioned in this embodiment are for reference only and do not represent actual directions in use.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the design of this case. Any equivalent changes made based on the key design of this case shall fall within the scope of protection of this case.

Claims

1. A high-performance nano-anti-fog coating lens, characterized by: The invention comprises a substrate layer, a strengthening layer attached to both the front and rear sides of the substrate layer, a functional coating layer attached to the side of the strengthening layer away from the substrate, and a nano anti-fog coating layer attached to the side of the functional coating layer away from the substrate layer; The functional coating layer is a REVO coating layer, an anti-reflection coating layer or a mercury coating layer, and the film layer in contact with the nano anti-fog coating layer is a silicon dioxide layer; The REVO coating layer is formed by stacking multiple layers of titanium pentoxide layers and silicon dioxide layers in sequence and alternately; The anti-reflection coating layer is formed by stacking a titanium pentoxide layer and a silicon dioxide layer in sequence, wherein the thickness of the titanium pentoxide layer is 130nm-140nm, and the thickness of the silicon dioxide layer is 850nm-900nm; The mercury coating layer is formed by stacking a chromium layer and a silicon dioxide layer in sequence, wherein the thickness of the chromium layer is 55nm-65nm, and the thickness of the silicon dioxide layer is 50nm.

2. The high-performance nano-anti-fog coating lens according to claim 1, characterized in that: The thickness of the nano anti-fog coating layer ranges from 2 to 4 μm.

3. The high-performance nano-anti-fog coating lens according to claim 1, characterized in that: The functional coating layer on the front side of the substrate layer is a REVO coating layer, and the functional coating layer on the back side of the substrate layer is an anti-reflection coating layer.

4. The high-performance nano-anti-fog coating lens according to claim 1, characterized in that: The functional coating layer on the front side of the substrate layer is a mercury coating layer, and the functional coating layer on the back side of the substrate layer is an anti-reflection coating layer.

5. The high-performance nano-anti-fog coating lens according to claim 1, characterized in that: The substrate layer is made of PC, nylon or TAC.

Images