Anti-UV safety lens and glasses

Abstract

The utility model discloses an anti-UV (ultraviolet) safety lens which is characterized in that at least one ultraviolet absorption layer is compounded on a substrate, and the ultraviolet absorption layer is made of a B900 ultraviolet absorbent. The utility model further discloses a pair of glasses using the anti-UV safety lens, the glasses are composed of lenses, a glasses frame and glasses legs, the lenses are installed in the glasses frame, and the anti-UV safety lens is adopted as the lenses. According to the utility model, the B900 ultraviolet light absorber is used for replacing UV powder to be compounded on the substrate, the B900 ultraviolet light absorber has the UV400 resisting characteristic, so that the lens has the UV400 resisting function, and the B900 ultraviolet light absorber does not contain substances harmful to human bodies like the UV powder, so that the carcinogenic risk is avoided, the lens is safe to use, and the requirements of new standards can be met; and the requirements of some high-grade brands are met.

Description

Technical Field

[0001] This utility model relates to the technical field of lenses, and in particular to an anti-UV safety lens, and eyeglasses using this lens. Background Technology

[0002] In our daily lives, we are constantly surrounded by ultraviolet (UV) rays. This isn't just true in summer; UV rays are present even in winter. UV rays can cause many eye problems, such as cataracts, macular degeneration, and ocular skin cancer. Prolonged exposure to UV rays can damage our eyes. Anti-UV lenses effectively prevent UV damage to the eyes, improve visual clarity, reduce eye fatigue, and are suitable for various scenarios, such as daily wear and outdoor activities. Many well-known eyewear brands use anti-UV lenses, which are favored by consumers.

[0003] In existing technologies, UV-resistant lenses achieve their UV400 protection by adding UV powder during the lens manufacturing process. This is typically done by coating the lens substrate with a layer containing UV powder, or by adding UV powder during the injection molding of the lens substrate, allowing the UV powder to organically integrate into the lens, thus creating a UV-resistant lens. However, research has found that some substances in currently used UV powders are harmful to the human body. For example, existing UV powders have detected UV absorbers UV-326 (i.e., bumetriazole) and UV absorber UV-329 (i.e., 2-(2H-benzotriazole-2-yl)-4-(1,1,3,3-tetramethylbutyl)phenol), both of which pose a carcinogenic risk. In particular, the EU REACH regulation added five new SVHC substances on January 23, 2024, including UV absorbers UV-326 and UV absorber UV-329. In other words, UV absorbers UV-326 and UV absorber UV-329 are considered substances of high concern and potential hazard to human health and the environment under the EU REACH regulation. These substances are listed in a special list, and manufacturers and importers are required to provide detailed safety data and assessment reports. Therefore, the implementation of the new standard has raised the safety requirements for lenses, causing some high-end eyewear brands to have serious concerns. Existing anti-UV lenses may no longer be able to be used in high-end eyewear. As a result, the industry urgently needs to develop a new type of safe anti-UV lens.

[0004] In view of this, the inventors organized personnel to conduct in-depth research and, through numerous experiments and tests, developed a brand-new anti-UV safety lens that eliminates the addition of harmful substances and ensures the safety of the glasses, thus giving rise to this invention. Utility Model Content

[0005] The purpose of this invention is to provide an anti-UV safety lens and eyeglasses using this anti-UV safety lens, so that the lens can not only resist UV400 but is also harmless to the human body, in order to meet the requirements of the new standard and meet the requirements of some high-end brands.

[0006] To achieve the above objectives, the solution of this utility model is:

[0007] A UV-resistant safety lens has at least one ultraviolet absorption layer laminated on a substrate, the ultraviolet absorption layer material being B900 ultraviolet absorber.

[0008] The substrate is a PC, PA, or AC substrate.

[0009] The substrate is a PA polarizer or a PC polarizer.

[0010] The B900 ultraviolet absorber is the Blu-SHIELD B900 product from Shanghai Kaibi Chemical Technology Co., Ltd.

[0011] The thickness of the ultraviolet absorbing layer is 8-10 micrometers.

[0012] The ultraviolet absorption layer is disposed on the convex or concave surface or both sides of the substrate.

[0013] The ultraviolet absorption layer is disposed in the middle of the substrate, that is, the substrate is divided into a first substrate and a second substrate. The ultraviolet absorption layer is disposed on the concave or convex surface of the first substrate, and the second substrate is correspondingly attached to the concave or convex surface of the first substrate on which the ultraviolet absorption layer is disposed, so that the ultraviolet absorption layer is disposed in the middle of the first substrate and the second substrate.

[0014] A pair of eyeglasses, comprising lenses, frames and temples, wherein the lenses are mounted in the frames and the lenses are made of the aforementioned UV-resistant safety lenses.

[0015] With the above structure, this invention uses B900 ultraviolet absorber instead of the existing UV powder to be laminated on the substrate. Because B900 ultraviolet absorber has UV400 protection properties, the lens has UV400 protection function. Furthermore, unlike existing UV powders, B900 ultraviolet absorber does not contain substances harmful to the human body, such as ultraviolet absorbers UV-326 and UV-329, thus avoiding the risk of cancer and making the lens safe to use. It can meet the requirements of the new standards and is more in line with the requirements of some high-end brands.

[0016] 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. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an embodiment of the lens of this utility model;

[0018] Figure 2 This is an enlarged structural view of an embodiment of the lens of this utility model;

[0019] Figure 3 This is the transmission spectrum of the lens of this utility model.

[0020] Label Explanation

[0021] Substrate----1: ​​First substrate----11, Second substrate----12, Polarizing film----13;

[0022] Ultraviolet absorption layer ---- 2. Detailed Implementation

[0023] 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.

[0024] It should be noted that the terms front, back, inside, outside, top, bottom, left, right, first, second, 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.

[0025] like Figures 1 to 2 As shown, the present invention discloses an anti-UV safety lens, wherein at least one ultraviolet absorption layer 2 is laminated on a substrate 1, and the material of the ultraviolet absorption layer 2 is B900 ultraviolet absorber.

[0026] Specifically, the substrate 1 of this invention can be a PC film, a PA film, or an AC film. The substrate 1 can also be a PA polarizing film or a PC polarizing film, that is, a polarizing film 13 is added to the PC film substrate 1 or the PA film substrate 1, so that the lens has a polarizing function.

[0027] The B900 ultraviolet absorber in the ultraviolet absorbing layer 2 can be Blu-SHIELD B900 product from Shanghai Kaibi Chemical Technology Co., Ltd. The optimal thickness of the ultraviolet absorbing layer 2 is 8-10 micrometers. Specifically, the ultraviolet absorbing layer 2 can be disposed on the convex or concave surface of the substrate 1, or on both sides of the substrate 1. Alternatively, as... Figure 1 and Figure 2 As shown, the ultraviolet absorption layer 2 can be disposed in the middle of the substrate 1, that is, the substrate 1 is divided into a first substrate 11 and a second substrate 12. The ultraviolet absorption layer 2 is disposed on the concave (or convex) surface of the first substrate 11, and the second substrate 12 is correspondingly attached to the concave (or convex) surface of the first substrate 11 where the ultraviolet absorption layer 2 is disposed, so that the ultraviolet absorption layer 2 is disposed in the middle of the first substrate 11 and the second substrate 12. A polarizing film 13 is also added to the first substrate 11.

[0028] This utility model also discloses a pair of eyeglasses, consisting of lenses, a frame, and temples. The lenses are mounted in the frame and are made of the aforementioned UV-resistant safety lenses. The specific structure of the UV-resistant safety lenses will not be described in detail here. As for the frame, it can be a framed type, a semi-framed type, or a frameless type consisting of a nose bridge and a post; these will not be illustrated individually here.

[0029] This invention uses B900 ultraviolet absorber instead of UV powder to be laminated onto the substrate 1. Because B900 ultraviolet absorber has UV400 protection properties, but unlike UV powder, it does not contain substances harmful to the human body. This allows the lens to have UV400 protection while avoiding the risk of cancer, making the lens safer to use, meeting the requirements of the new standards, and satisfying the requirements of some high-end brands.

[0030] A lens product with a double-sided ultraviolet absorption layer 2 (B900 ultraviolet absorber) on substrate 1 was submitted to UL VS Shanghai Limited Shenzhen Branch for testing. The results showed that the measured values ​​met the UV-326 and UV-329 safety standards, proving that the lens of this invention has high safety. For example... Figure 3As shown, this utility model of anti-UV safety lens uses B900 ultraviolet absorber to achieve anti-UV400 function, which can completely block ultraviolet rays below 400nm and most of the harmful light rays in the 400-420nm range. The lens transmittance reaches 92%, and the product complies with European standard [ISO 12312-1:2022], American standard [ANSI Z80.3-2018(R2023)], and Australian standard [AS / NZS1067.1:2016+A1:2021].

[0031] 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 UV-resistant safety lens, characterized in that: At least one ultraviolet absorption layer is laminated on the substrate, and the ultraviolet absorption layer material is B900 ultraviolet absorber.

2. The UV-resistant safety lens as described in claim 1, characterized in that: The substrate is a PC, PA, or AC substrate.

3. The UV-resistant safety lens as described in claim 1, characterized in that: The substrate is a PA polarizer or a PC polarizer.

4. The UV-resistant safety lens as described in claim 1, characterized in that: The B900 ultraviolet absorber is the Blu-SHIELD B900 product from Shanghai Kaibi Chemical Technology Co., Ltd.

5. The UV-resistant safety lens as described in claim 1, characterized in that: The thickness of the ultraviolet absorbing layer is 8-12 micrometers.

6. The UV-resistant safety lens as described in claim 1, characterized in that: The ultraviolet absorption layer is disposed on the convex or concave surface or both sides of the substrate.

7. The UV-resistant safety lens as described in claim 1, characterized in that: The ultraviolet absorption layer is disposed in the middle of the substrate, that is, the substrate is divided into a first substrate and a second substrate. The ultraviolet absorption layer is disposed on the concave or convex surface of the first substrate, and the second substrate is correspondingly attached to the concave or convex surface of the first substrate on which the ultraviolet absorption layer is disposed, so that the ultraviolet absorption layer is disposed in the middle of the first substrate and the second substrate.

8. A pair of eyeglasses, characterized in that: It consists of a lens, a frame, and temples, with the lens mounted in the frame. The lens is an anti-UV safety lens as described in any one of claims 1-7.

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