Anti-ultraviolet lens with anti-counterfeiting pattern and glasses

By setting a multi-layer film structure on the lens, including an anti-counterfeiting pattern film layer and an anti-ultraviolet film layer, the problem of combining the existing lens pattern layer and the film layer interfering with the line of sight and prone to oxidation and wear is solved, and the pattern diversity is achieved and the resistance to oxidation is achieved. Improved oxidation and wear resistance, while reducing ultraviolet refraction and improving wearer comfort.

CN222461829UActive Publication Date: 2025-02-11XIAMEN MEILAN OPTOELECTRONICS TECH CO LTD
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Patent Information

Application Number
CN202421165043.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-27
Publication Date
2025-02-11
Estimated Expiration
2034-05-27

AI Technical Summary

Technical Problem

The existing anti-ultraviolet lens pattern layer and the film layer will interfere with the line of sight. The pattern layer is prone to oxidation and wear, and the pattern color needs to be consistent with the overall lens color, which is difficult to meet the diverse needs of customers. At the same time, ultraviolet light enters from the inside of the glasses, causing the wearer to Reduced comfort.

Method used

Provide a lens with anti-ultraviolet light with anti-counterfeiting pattern, by setting a first hard film layer, an anti-counterfeiting pattern film layer and a second hard film layer on the outer surface of the substrate, and setting an anti-ultraviolet light on the inner surface of the substrate The film layer and the protective layer, the ultraviolet-resistant film layer are alternately superimposed by the silicon-aluminum mixture layer and the Nb2O5 layer, ensuring that the pattern is closely combined with the lens, preventing oxidation and discoloration, and reducing ultraviolet refraction through reflectivity control.

Benefits of technology

It achieves a close combination of the pattern and the lens, does not block the line of sight, has good anti-oxidation and wear resistance, improves the wearer's comfort, and achieves a double anti-counterfeiting effect through pattern color matching, extending the service life of the lens.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an anti-ultraviolet lens with an anti-counterfeiting pattern, which is characterized in that an anti-ultraviolet thin film layer D4 is plated on the inner surface of a substrate, and the anti-ultraviolet thin film layer D4 is used for reducing ultraviolet light reflected from the inner side of the lens to enter eyes through nine high-refractive-index and low-refractive-index film layers which are alternately stacked, so that the eyes are protected. And a protective layer D5 is plated on the surface of the anti-ultraviolet thin film layer D4 and is used for protecting the anti-ultraviolet thin film layer, so that the anti-ultraviolet thin film layer is not easy to wear, and the service life of the lens is prolonged. Meanwhile, the patterns and the lenses are tightly combined, the sight line of a wearer is not blocked, good oxidation resistance and abrasion resistance are achieved, the comfort level of the wearer is improved, meanwhile, the colors and styles of the patterns can be selected according to customer requirements, namely two colors are formed on the surface of the same lens, and the dual anti-fake effect is achieved through matching of the patterns and the colors.
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Description

Technical Field

[0001] The utility model relates to the field of lenses, in particular to lenses and glasses with anti-ultraviolet light and anti-counterfeiting patterns. Background Art

[0002] In order to develop diversified lenses, it has become a fashion trend to load patterns on colored lenses. Usually, the sunglasses as a whole are of one color, and the pattern is consistent with the color of the overall lens, so it is difficult to achieve the diversification of pattern colors. Moreover, after the pattern is loaded, it is easy to leave a decomposition line caused by the overlap of the upper and lower layers on the edge of the pattern, affecting the visual effect. It is also very important whether the pattern is stable and not prone to oxidation and discoloration. In the prior art, sunglasses with patterns have a single color, poor bonding between the pattern and the lens, and are prone to oxidation and discoloration, which affects the wearer's vision to a certain extent. In addition, due to the bad habits of some wearers, such as touching the lens with their fingers and storing it at will, the anti-ultraviolet film layer of the lens is damaged by friction with other objects, shortening the service life of the lens.

[0003] In addition to using anti-ultraviolet lenses under strong direct UV light, anti-ultraviolet sunglasses are also commonly used for fashion matching and photography. When facing away from the sun or when the ambient UV light is concentrated on the back of the wearer, the UV light will enter from the inside of the glasses. Sunglasses on the market are prone to refracting UV light inside the lens to the eyes, causing the wearer's comfort to decrease. Utility Model Content

[0004] The purpose of the utility model is to overcome the problem that the combination of the pattern layer and the film layer of the existing anti-ultraviolet lens will interfere with the line of sight, the pattern layer is easy to oxidize and wear, and the color of the pattern layer must be consistent with the color of the overall lens, which is difficult to meet the diverse needs of customers. At the same time, it is necessary to solve the problem that ultraviolet light enters from the inside of the glasses, causing the ultraviolet light to be refracted inside the lens to the eyes, causing the wearer's comfort to decrease.

[0005] Therefore, the utility model provides a lens with anti-ultraviolet light and anti-counterfeiting pattern, which closely combines the pattern with the lens without blocking the wearer's line of sight, and has good anti-oxidation and abrasion resistance, and improves the wearer's comfort. At the same time, the pattern color and style can be selected according to customer needs, that is, two colors are formed on the same lens surface, and a double anti-counterfeiting effect is achieved through the combination of pattern and color.

[0006] To achieve the above-mentioned purpose, the first aspect of the utility model proposes an anti-ultraviolet light lens with an anti-counterfeiting pattern, comprising a substrate 0, the outer surface of the substrate 0 is provided with a first hardened film layer D1, an anti-counterfeiting pattern film layer D2 and a second hardened film layer D3 in sequence from the substrate 0 to the outside; the inner surface of the substrate 0 is provided with an anti-ultraviolet light film layer D4 and a protective layer D5 in sequence from the substrate 0 to the outside; the anti-ultraviolet light film layer D4 is composed of 1-9 layers of silicon-aluminum mixture layers and Nb2O5 layers alternately stacked, and the silicon-aluminum mixture layer is directly connected to the inner surface of the substrate 0.

[0007] Furthermore, the thickness of the first hard film layer D1 is 2.0-3.0 μm, and the thickness of the second hard film layer D3 is 1.0-2.0 μm.

[0008] Furthermore, the thickness of the anti-counterfeiting pattern film layer D2 is less than 500 nm.

[0009] Furthermore, the average reflectivity of the anti-ultraviolet film layer D4 at a wavelength of 280-320nm is less than 3.5%; the average reflectivity at a wavelength of 320-380nm is less than 4.0%; the average reflectivity at a wavelength of 380-700nm is less than 1.5%; preferably, the average reflectivity at a wavelength of 280-380nm is less than 3.0%.

[0010] Furthermore, 9 layers of silicon-aluminum mixture layers and Nb2O5 layers are alternately stacked, and from the inner surface of substrate 0 to the outside, they are L1, L2, L3, L4, L5, L6, L7, L8, and L9 film layers, among which L1, L3, L5, L7, and L9 film layers are silicon-aluminum mixture layers, and L2, L4, L6, and L8 film layers are Nb2O5 layers.

[0011] Furthermore, the silicon-aluminum mixture layer is a low-refractive index film layer, and the Nb2O5 layer is a high-refractive index film layer; wherein the refractive index of the high-refractive index film layer is 2.0-2.5, and the refractive index of the low-refractive index layer is 1.38-1.49.

[0012] Furthermore, the thicknesses of the L1, L3, L5, L7, and L9 film layers are 80-300nm, 10-100nm, 5-100nm, 5-100nm, and 50-150nm, respectively; preferably, the thicknesses of the L1, L3, L5, L7, and L9 film layers are 100-150nm, 30-50nm, 8-30nm, 8-30nm, and 60-90nm, respectively.

[0013] Furthermore, the thicknesses of L2, L4, L6 and L8 films are 3-50nm, 10-100nm, 40-150nm and 10-100nm respectively; preferably, the thicknesses of L2, L4, L6 and L8 films are 3-10nm, 10-30nm, 40-70nm and 10-30nm respectively.

[0014] Furthermore, the thickness of the protective layer D5 is 10-50 nm.

[0015] The second aspect of the present invention provides a pair of glasses, comprising the anti-ultraviolet light lens with anti-counterfeiting pattern provided in the first aspect of the present invention.

[0016] In the utility model, an anti-ultraviolet film layer D4 is plated on the inner surface of the substrate. The anti-ultraviolet film layer D4 reduces the ultraviolet light reflected from the inner side of the lens into the eyes by 9 layers of high refractive index and low refractive index film layers alternately stacked, which improves the comfort of the wearer. By controlling the reflectivity of the anti-ultraviolet film layer D4, the harmful ultraviolet light of 280-380nm reflected from the inner side of the lens is reduced to cause damage to the eyes, which is used to protect the eyes. A protective layer is plated on the surface of the anti-ultraviolet film layer D4 to protect the anti-ultraviolet film layer, making it less prone to wear and tear, and improving the service life of the lens.

[0017] Furthermore, in the utility model, an anti-counterfeiting pattern layer D2 is plated on the outer surface of the substrate. The pattern of the film layer is clear, the viscosity is good, it is tightly combined with other film layers, and it is not easy to oxidize and discolor. At the same time, the pattern and the color of the pattern can be customized according to the needs of the customer, and the combination of the pattern and different colors can achieve a double anti-counterfeiting effect.

[0018] Furthermore, the first hardened film layer D1 improves the adhesion between the anti-counterfeiting pattern film layer D2 and the substrate, and the second hardened film layer improves the anti-oxidation performance of the anti-counterfeiting pattern film layer and the friction resistance of the lens, thereby increasing the service life of the lens with anti-UV light anti-counterfeiting pattern.

[0019] In summary, the reflectivity spectrum of the anti-ultraviolet light anti-counterfeiting pattern lens proposed in the utility model has an average reflectivity of ≤3.5% at a wavelength of 280-320nm, an average reflectivity of ≤4.0% at a wavelength of 320-380nm, an average reflectivity of ≤3.0% at a wavelength of 280-380nm, and an average reflectivity of ≤1.5% at a wavelength of 380-700nm. The lens adjusts the amount of ultraviolet light reflected in the ultraviolet region to protect the eyes. At the same time, the anti-oxidation ability and adhesion of the anti-counterfeiting pattern film layer and the friction resistance of the lens are improved by setting the first hard film and the second hard film, thereby increasing the service life of the lens. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the lens structure in a specific embodiment of the utility model;

[0021] Figure 2 It is a schematic diagram of the structure of the anti-ultraviolet film layer in a specific embodiment of the utility model;

[0022] Figure 3This is the reflection spectrum diagram in Example 1 of the utility model. DETAILED DESCRIPTION

[0023] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be construed as limitations on the present invention. If specific techniques or conditions are not indicated in the embodiments, they are carried out according to the techniques or conditions described in the literature in this area or according to the product instructions. If the manufacturer is not indicated for the reagents or instruments used, they are all conventional products that can be obtained commercially. In the following embodiments, if not clearly stated, "%" refers to weight percentage.

[0024] The following are definitions of some terms used in this utility model, while others are not mentioned.

[0025] The silicon-aluminum mixture described in the utility model is composed of a mixture of SiO2 and Al2O3. The material can be homemade or a commercially available product, such as the vacuum coating material L5. The Chinese common name is "silicon-aluminum mixture", and "L5" is its German common name. The material can be provided by Merck Optics, Nanyang Kairuite Optical New Materials Co., Ltd. or Suzhou Putin Vacuum Technology Co., Ltd. The common specifications are 1-3mm loose particles, white in color.

[0026] Substrate 0: It can be a flat lens or a lens with a certain curvature. Substrate 0 can be any one of a PC sheet, a CR39 sheet, a nylon sheet, and an AC sheet.

[0027] Outer surface: In the present invention, the outer surface refers to the side of the lens that directly receives light from the light source when the lens is in use, that is, the side of the lens away from the human eye.

[0028] Hardened film layer: Both the first hardened film layer and the second hardened film layer can be coated with commercially available products, such as CR39 lens hardening liquid produced by Gaofan Chemical, YL-112PC hardening liquid produced by Laiyang Yulin Chemical Co., Ltd., etc.

[0029] Protective layer: The protective layer is a waterproof material and can be coated with commercially available products.

[0030] like Figure 1As shown, the anti-ultraviolet light lens with anti-counterfeiting pattern provided by the utility model includes a substrate 0, and the side of the substrate 0 that is located away from the human eye in the use state is defined as the outside. The outer surface of the substrate 0 is provided with a first hard film layer D1, an anti-counterfeiting pattern film layer D2 and a second hard film layer D3 from the inside to the outside; the inner surface of the substrate 0 is provided with an anti-ultraviolet light film layer D4 and a protective layer D5 from the inside to the outside; the anti-ultraviolet light film layer D4 is composed of 1-9 layers of silicon-aluminum mixture layers and Nb2O5 layers alternately stacked.

[0031] The thickness of the first hard film layer D1 is 2.0-3.0μm, not limited to 2.1μm, 2.2μm, 2.3μm, 2.4μm, 2.5μm, 2.6μm, 2.7μm, 2.8μm, 2.9μm; the thickness of the second hard film layer D3 is 1.0-2.0μm, not limited to 1.1μm, 1.2μm, 1.3μm, 1.4μm, 1.5μm, 1.6μm, 1.7μm, 1.8μm, 1.9μm.

[0032] The thickness of the anti-counterfeiting pattern film layer D2 is less than 500 nm.

[0033] The anti-ultraviolet film layer D4 has an average reflectivity of less than 3.5% at a wavelength of 280-320nm; an average reflectivity of less than 4.0% at a wavelength of 320-380nm; an average reflectivity of less than 1.5% at a wavelength of 380-700nm; preferably, an average reflectivity of less than 3.0% at a wavelength of 280-380nm.

[0034] like Figure 2 As shown, they are L1, L2, L3, L4, L5, L6, L7, L8, and L9 film layers in sequence. Among them, L1, L3, L5, L7, and L9 film layers are silicon-aluminum mixture layers, and L2, L4, L6, and L8 film layers are Nb2O5 layers. The silicon-aluminum mixture layer is directly connected to the inner surface of the substrate 0. The silicon-aluminum mixture layer is a low-refractive index film layer, and the Nb2O5 layer is a high-refractive index film layer; among them, the refractive index of the high-refractive index film layer is 2.0-2.5, and the refractive index of the low-refractive index layer is 1.38-1.49.

[0035] The thickness of the L1 film layer is 80-300nm, but not limited to 90nm, 100nm, 110nm, 120nm, 130nm, 140nm, 150nm, 160nm, 170nm, 180nm, 190nm, 200nm, 210nm, 220nm, 230nm, 240nm, 250nm, 260nm, 270nm, 280nm, 290nm; the thickness of the L3 film layer is 10-100nm, but not limited to 15nm, 20nm, 25nm, 30nm, 35nm, 40nm, 45nm, 50nm, 55nm, 60nm, 65nm, 70nm, 75nm, 80nm, 85nm, 90nm, 95nm; the thickness of the L5 film layer is 5-100nm, but not limited to 10nm, 15nm, 20nm, 25nm, 30nm, 35 The thickness of the L7 film layer is 5-100nm, not limited to 10nm, 15nm, 20nm, 25nm, 30nm, 35nm, 40nm, 45nm, 50nm, 55nm, 60nm, 65nm, 70nm, 75nm, 80nm, 85nm, 90nm, 95nm; the thickness of the L9 film layer is 50-150nm, not limited to 55nm, 60nm, 65nm, 70nm, 75nm, 80nm, 85nm, 90nm, 95nm, 100nm, 105nm, 110nm, 115nm, 120nm, 125nm, 130nm, 135nm, 140nm, 145nm.

[0036] The thickness of the L2 film layer is 3-50nm, not limited to 4nm, 5nm, 6nm, 7nm, 8nm, 9nm, 10nm, 11nm, 12nm, 13nm, 14nm, 15nm, 16nm, 17nm, 18nm, 19nm, 20nm, 21nm, 22nm, 23nm, 24nm, 25nm, 26nm, 27nm, 29nm, 30nm, 31nm, 32nm, 33nm, 34nm, 35nm, 36nm, 37nm, 38nm, 39nm, 40nm, 41nm, 42nm, 43nm, 44nm, 45nm, 46nm, 47nm, 48nm, 49nm; the thickness of the L4 film layer is 10-100nm, not limited to 15nm, 20nm, 25nm, 30nm, 35nm, 40nm, 45nm The thickness of the L6 film layer is 40-150nm, not limited to 45nm, 50nm, 55nm, 60nm, 65nm, 70nm, 75nm, 80nm, 85nm, 90nm, 95nm, 100nm, 105nm, 110nm, 115nm, 120nm, 125nm, 130nm, 135nm, 140nm, 145nm; the thickness of the L8 film layer is 10-100nm, not limited to 15nm, 20nm, 25nm, 30nm, 35nm, 40nm, 45nm, 50nm, 55nm, 60nm, 65nm, 70nm, 75nm, 80nm, 85nm, 90nm, 95nm.

[0037] The thickness of the protective layer D5 is 10-50 nm, but is not limited to 15 nm, 20 nm, 25 nm, 30 nm, 35 nm, 40 nm, and 45 nm.

[0038] The test methods used below include:

[0039] Reflectivity test: Use a spectrophotometer to test the reflectivity at 400-1100nm.

[0040] Antioxidant test: using QUV tester, UV irradiation: intensity 0.67W / m 2 , temperature 60℃, irradiation 4 hours; condensation: temperature 50℃, time 4H. UV irradiation and condensation cycle test, record the time when the film color begins to fade.

[0041] Friction resistance test: 0000# steel velvet, load 1Kg, frequency 32 times / minute, record the number of times scratches appear.

[0042] Embodiment 1:

[0043] like Figure 1 As shown, the lens in Example 1 includes a substrate 0 and a first hard film layer D1, an anti-counterfeiting pattern film layer D2 and a second hard film layer D3 arranged in sequence from the inside to the outside on the outer surface of the substrate 0, wherein the first hard film layer D1 is in contact with the outer surface of the substrate 0. An anti-ultraviolet film layer D4 and a protective layer D5 are arranged in sequence from the inside to the outside on the inner surface of the substrate 0.

[0044] The anti-ultraviolet film layer D4 is composed of 1-9 layers of silicon-aluminum mixture layers and Nb2O5 layers alternately stacked, such as Figure 2 As shown, from the inner surface of substrate 0 to the outside, there are L1, L2, L3, L4, L5, L6, L7, L8, and L9 film layers, the L1 film layer is bonded to the inner surface of substrate 0, and the L9 film layer is bonded to the protective layer D5. Among them, the L1, L3, L5, L7, and L9 film layers are silicon-aluminum mixture layers, and the L2, L4, L6, and L8 film layers are Nb2O5 layers.

[0045] The thickness of the first hard film layer D1 is 1.5 μm, and the thickness of the second hard film layer D3 is 1.5 μm. The thickness of the anti-counterfeiting pattern film layer D2 is 450 nm. The thickness of the protective layer D5 is 50 nm. The thicknesses of the L1, L3, L5, L7, and L9 layers are 120 nm, 40 nm, 20 nm, 20 nm, and 80 nm, respectively; the thicknesses of the L2, L4, L6, and L8 layers are 8 nm, 20 nm, 50 nm, and 20 nm, respectively.

[0046] As shown in Table 1 and Figure 2 As shown, the anti-UV lens with anti-counterfeiting pattern described in this embodiment has an average reflectivity of 0.83% at a wavelength of 280-320nm, an average reflectivity of 1.00% at a wavelength of 320-380nm, an average reflectivity of 0.94% at a wavelength of 280-380nm, and an average reflectivity of 1.14% at a wavelength of 380-700nm. The amount of reflected ultraviolet light can be adjusted in the ultraviolet light region to protect the eyes and prevent ultraviolet light from being reflected from the inside of the lens into the eyes.

[0047] Table 1

[0048]

[0049]

[0050] Embodiment 2:

[0051] The lens in Example 2 includes a substrate 0 and a first hard film layer D1, an anti-counterfeiting pattern film layer D2 and a second hard film layer D3 arranged in sequence from the inside to the outside on the outer surface of the substrate 0; wherein the first hard film layer D1 is in contact with the outer surface of the substrate 0. An anti-ultraviolet film layer D4 and a protective layer D5 are arranged in sequence from the inside to the outside on the inner surface of the substrate 0.

[0052] The anti-ultraviolet film layer D4 is composed of 1-9 layers of silicon-aluminum mixture layers and Nb2O5 layers alternately stacked, such as Figure 2 As shown, from the inner surface of substrate 0 to the outside, there are L1, L2, L3, L4, L5, L6, L7, L8, and L9 film layers, among which L1, L3, L5, L7, and L9 film layers are silicon-aluminum mixture layers, and L2, L4, L6, and L8 film layers are Nb2O5 layers.

[0053] The thickness of the first hard film layer D1 is 1.0 μm, and the thickness of the second hard film layer D3 is 1.0 μm. The thickness of the anti-counterfeiting pattern film layer D2 is 450 nm. The thickness of the protective layer D5 is 50 nm. The thicknesses of the L1, L3, L5, L7, and L9 layers are 150 nm, 50 nm, 30 nm, 30 nm, and 90 nm, respectively; the thicknesses of the L2, L4, L6, and L8 layers are 10 nm, 30 nm, 70 nm, and 30 nm, respectively.

[0054] The anti-ultraviolet light lens with anti-counterfeiting pattern described in this embodiment has an average reflectivity of 1.10% at a wavelength of 280-320nm, an average reflectivity of 1.20% at a wavelength of 320-380nm, an average reflectivity of 1.23% at a wavelength of 280-380nm, and an average reflectivity of 1.45% at a wavelength of 380-700nm. The amount of reflected ultraviolet light can be adjusted in the ultraviolet light region to protect the eyes.

[0055] Embodiment 3:

[0056] The lens in Example 3 includes a substrate 0 and a first hard film layer D1, an anti-counterfeiting pattern film layer D2 and a second hard film layer D3 arranged in sequence from the inside to the outside on the outer surface of the substrate 0; wherein the first hard film layer D1 is in contact with the outer surface of the substrate 0. An anti-ultraviolet film layer D4 and a protective layer D5 are arranged in sequence from the inside to the outside on the inner surface of the substrate 0.

[0057] The anti-ultraviolet film layer D4 is composed of 1-9 layers of silicon-aluminum mixture layers and Nb2O5 layers alternately stacked, such as Figure 2 As shown, from the inner surface of substrate 0 to the outside, there are L1, L2, L3, L4, L5, L6, L7, L8, and L9 film layers, among which L1, L3, L5, L7, and L9 film layers are silicon-aluminum mixture layers, and L2, L4, L6, and L8 film layers are Nb2O5 layers.

[0058] The thickness of the first hard film layer D1 is 3.0 μm, and the thickness of the second hard film layer D3 is 1.5 μm. The thickness of the anti-counterfeiting pattern film layer D2 is 450 nm. The thickness of the protective layer D5 is 30 nm. The thickness of the L1, L3, L5, L7, and L9 film layers are 100 nm, 30 nm, 8 nm, 8 nm, and 60 nm respectively; the thickness of the L2, L4, L6, and L8 film layers are 3 nm, 10 nm, 40 nm, and 10 nm respectively.

[0059] The anti-ultraviolet light lens with anti-counterfeiting pattern described in this embodiment has an average reflectivity of 0.64% at a wavelength of 280-320nm, an average reflectivity of 0.80% at a wavelength of 320-380nm, an average reflectivity of 0.74% at a wavelength of 280-380nm, and an average reflectivity of 0.92% at a wavelength of 380-700nm. The amount of reflected ultraviolet light can be adjusted in the ultraviolet light region to protect the eyes.

[0060] Comparative Example 1:

[0061] The lens in comparative example 1 includes a substrate 0 and a first hard film layer D1 and an anti-counterfeiting pattern film layer D2 arranged sequentially from the inside to the outside on the outer surface of the substrate 0; wherein the first hard film layer D1 is in contact with the outer surface of the substrate 0. An anti-ultraviolet film layer D4 and a protective layer D5 are arranged sequentially from the inside to the outside on the inner surface of the substrate 0.

[0062] The anti-ultraviolet film layer D4 is composed of 1-9 layers of silicon-aluminum mixture layers and Nb2O5 layers alternately stacked, such as Figure 2 As shown, from the inner surface of substrate 0 to the outside, there are L1, L2, L3, L4, L5, L6, L7, L8, and L9 film layers, among which L1, L3, L5, L7, and L9 film layers are silicon-aluminum mixture layers, and L2, L4, L6, and L8 film layers are Nb2O5 layers.

[0063] The thickness of the first hardened film layer D1 is 3.0 μm. The thickness of the protective layer D5 is 30 nm. The thicknesses of the L1, L3, L5, L7, and L9 layers are 15 nm, 45 nm, 20 nm, 15 nm, and 100 nm, respectively; the thicknesses of the L2, L4, L6, and L8 layers are 10 nm, 30 nm, 60 nm, and 40 nm, respectively.

[0064] The anti-ultraviolet light lens with anti-counterfeiting pattern described in this embodiment has an average reflectivity of 34.129% at a wavelength of 280-320nm, an average reflectivity of 2.422% at a wavelength of 320-380nm, an average reflectivity of 15.21% at a wavelength of 280-380nm, and an average reflectivity of 0.91% at a wavelength of 380-700nm. In the ultraviolet light region of 280-380nm, the reflectivity is relatively high, which seriously affects the comfort of the wearer's glasses and cannot provide a good anti-ultraviolet effect.

[0065] The lenses in the above embodiments were subjected to friction resistance and oxidation resistance tests, and the test results are shown in Table 2:

[0066] Table 2

[0067]

[0068]

[0069] It can be seen from Table 2 that compared with Comparative Example 1, the lenses in Examples 1-3 of the present invention can withstand about 220 hours of anti-oxidation test, the film color does not fade, and the anti-oxidation performance is good. In addition, the present invention can withstand about 46 times of 0000# steel wool friction, and has good friction resistance.

[0070] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and purpose of the present invention.

Claims

1. A lens with UV resistance and anti-counterfeiting pattern, characterized in that: It includes a substrate 0, the outer surface of which is provided with a first hard film layer D1, an anti-counterfeiting pattern film layer D2 and a second hard film layer D3 in sequence from substrate 0 to the outside; the inner surface of substrate 0 is provided with an anti-ultraviolet film layer D4 and a protective layer D5 in sequence from substrate 0 to the outside; the anti-ultraviolet film layer D4 is composed of 1-9 layers of silicon-aluminum mixture layers and Nb2O5 layers alternately stacked, and the silicon-aluminum mixture layer is directly connected to the inner surface of substrate 0.

2. The anti-ultraviolet light lens with anti-counterfeiting pattern according to claim 1, characterized in that: The thickness of the first hard film layer D1 is 2.0-3.0 μm, and the thickness of the second hard film layer D3 is 1.0-2.0 μm.

3. The anti-ultraviolet light lens with anti-counterfeiting pattern according to claim 1, characterized in that: The thickness of the anti-counterfeiting pattern film layer D2 is less than 500 nm.

4. The anti-ultraviolet light lens with anti-counterfeiting pattern according to claim 1, characterized in that: The average reflectivity of the anti-ultraviolet film layer D4 at a wavelength of 280-320nm is less than 3.5%; the average reflectivity at a wavelength of 320-380nm is less than 4.0%; and the average reflectivity at a wavelength of 380-700nm is less than 1.5%.

5. The anti-ultraviolet light lens with anti-counterfeiting pattern according to claim 4, characterized in that: The average reflectivity of the anti-ultraviolet film layer D4 at a wavelength of 280-380 nm is less than 3.0%.

6. The anti-ultraviolet light lens with anti-counterfeiting pattern according to claim 1, characterized in that: The 9 layers of silicon-aluminum mixture layers and Nb2O5 layers are alternately stacked, and from the inner surface of substrate 0 to the outside, they are L1, L2, L3, L4, L5, L6, L7, L8, and L9 film layers, among which L1, L3, L5, L7, and L9 film layers are silicon-aluminum mixture layers, and L2, L4, L6, and L8 film layers are Nb2O5 layers.

7. The anti-ultraviolet light lens with anti-counterfeiting pattern according to claim 6, characterized in that: The silicon-aluminum mixture layer is a low-refractive index film layer, and the Nb2O5 layer is a high-refractive index film layer; wherein the refractive index of the high-refractive index film layer is 2.0-2.5, and the refractive index of the low-refractive index layer is 1.38-1.

49.

8. The anti-ultraviolet light lens with anti-counterfeiting pattern according to claim 6, characterized in that: The thicknesses of the L1, L3, L5, L7 and L9 film layers are 80-300nm, 10-100nm, 5-100nm, 5-100nm and 50-150nm respectively.

9. The anti-ultraviolet light lens with anti-counterfeiting pattern according to claim 8, characterized in that: The thicknesses of the L1, L3, L5, L7 and L9 film layers are 100-150nm, 30-50nm, 8-30nm, 8-30nm and 60-90nm respectively.

10. The anti-ultraviolet light lens with anti-counterfeiting pattern according to claim 6, characterized in that: The thicknesses of the L2, L4, L6 and L8 films are 3-50nm, 10-100nm, 40-150nm and 10-100nm respectively.

11. The anti-ultraviolet light lens with anti-counterfeiting pattern according to claim 10, characterized in that: The thicknesses of the L2, L4, L6 and L8 films are 3-10nm, 10-30nm, 40-70nm and 10-30nm respectively.

12. The anti-ultraviolet light lens with anti-counterfeiting pattern according to claim 1, characterized in that: The thickness of the protective layer D5 is 10-50 nm.

13. A pair of glasses, characterized in that: A lens comprising the anti-ultraviolet light band anti-counterfeiting pattern as described in any one of claims 1 to 12.

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