Anti-infrared sunglass lens
By setting a multi-layer structure on the lens base layer, the problems of easy carbonization and high haze of the lens during high-temperature injection molding are solved, achieving high contrast, infrared protection, wear resistance, and antibacterial effects, and improving the clarity of the lens and its ability to protect against infrared damage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2026-03-10
AI Technical Summary
Existing infrared-blocking lenses are prone to carbonization during high-temperature injection molding, resulting in black spots and impurities, high haze values, and reduced clarity. They also fail to effectively protect against near-infrared radiation damage.
A color-enhancing layer, an infrared-protecting hardening layer, a REVO coating layer, a waterproof layer, an oil-proof layer, an anti-reflective layer, and a nano-antibacterial layer are set on the base layer of the lens. Specific materials and thicknesses are used to form a multi-layer structure to enhance infrared protection and clarity.
It achieves high contrast, infrared protection, abrasion resistance, and antibacterial effects in the lens, reduces fogging, and improves lens clarity and eye protection.
Smart Images

Figure CN223986261U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of lens, specifically to a kind of anti-infrared sunglass lens. BACKGROUND
[0002] Anti-infrared lens is a kind of lens that can shield infrared, protect eyes from heat radiation damage. Infrared, also known as infrared radiation, thermal radiation or heat ray, is a component of non-ionizing radiation. The strongest source of infrared radiation in nature is the sun. Whether outdoors or indoors, eyes can be harmed by infrared. Moreover, its radiation is deeper into the fundus than ultraviolet light, and it is more likely to cause eye diseases. Anti-infrared usually refers to anti-near infrared. Because near-infrared rays pose a potential threat to eye health, anti-infrared products, especially anti-infrared glasses, are mainly to prevent near-infrared damage.
[0003] Currently, anti-infrared lenses on the market are made by adding master batches to plastic pellets and injection molding. These master batches are prone to carbonization during the mixing and injection molding process with plastic pellets due to their intolerance to high temperatures, resulting in black spots and impurity points on the lens. At the same time, the haze value is high, making the lens not so clear and transparent.
[0004] In view of this, the present inventors, based on their rich experience in lens production and manufacturing, have conducted in-depth research on existing anti-infrared lenses and developed a new type of anti-infrared sunglass lens, giving rise to the present case. SUMMARY
[0005] The purpose of the present utility model is to provide an anti-infrared sunglass lens that aims to achieve the function of preventing near-infrared rays, making the sunglass lens have the function of preventing near-infrared rays, reducing the harm of near-infrared to the eyes, and improving the protection ability of the sunglass to the eyes.
[0006] To achieve the above purpose, the solution of the present utility model is as follows:
[0007] An anti-infrared sunglass lens, a color-enhancing layer is provided on the convex surface of the base layer; an anti-infrared hardening layer is provided on the concave surface of the base layer and the color-enhancing layer; an REVO film layer is provided on the anti-infrared hardening layer of the convex surface; a waterproof layer is provided on the REVO film layer, and an oil-repellent layer is provided on the waterproof layer; a reflection-reducing layer is provided on the anti-infrared hardening layer of the concave surface, and a nano-antibacterial layer is provided on the reflection-reducing layer, and a waterproof layer is provided on the nano-antibacterial layer.
[0008] The material of the base layer is PC or PA.
[0009] The material of the color-enhancing layer is boron chloride subphthalocyanine, which absorbs light with a wavelength of 570-590 nm, and the thickness is 3-6 μm.
[0010] The thickness of the anti-infrared hard layer is 3-8 microns.
[0011] The thickness of the REVO film layer is 80-150 nm.
[0012] The thickness of the waterproof layer is 8-15 nm, and the thickness of the oil-proof layer is 8-15 nm.
[0013] The thickness of the anti-reflection layer is 90-110 nm.
[0014] The thickness of the nano-antibacterial layer is 5-15 nm.
[0015] After the above structure is adopted, the color-enhancing color layer is arranged on the base layer, the color-enhancing color layer can absorb light with a wavelength of 570 nm-590 nm, the lens has high contrast, the visual color contrast is improved, the color saturation is enhanced, the color resolution of the human eye is enhanced, an anti-infrared hard layer is arranged on each of the concave and convex sides of the color-enhancing color layer, the lens has the effects of anti-infrared, wear resistance and scratch resistance, an anti-reflection layer is arranged on the anti-infrared hard layer of the concave surface, the reflection of the reflected light of the lens to the eyes is reduced, the visual line is clearer, a REVO film layer is arranged on the anti-infrared hard layer of the convex surface, different colors of REVO film can be plated according to the needs, the color of the lens is more flexible and rich, the lens has the effect of color flash, a nano-antibacterial layer is arranged on the anti-reflection layer, the inner surface of the lens has the effect of antibiosis, the cross infection of bacteria and fungi is prevented, and the eyes are infected, a waterproof layer and an oil-proof layer are arranged on the REVO film layer, and a waterproof layer is arranged on the nano-antibacterial layer, the waterproof and oil-proof effects are achieved.
[0016] In summary, the sun lens has the function of anti-near infrared, the damage of the near infrared to the eyes is reduced, the protection ability of the sun lens to the eyes is improved, meanwhile, the haze value is reduced, and the lens is more clear and transparent. BRIEF DESCRIPTION OF DRAWINGS
[0017] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the following briefly describes the drawings needed to be used in the embodiment description. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.
[0018] Figure 1 is a disassembled schematic view of the present application;
[0019] Figure 2 is a structural cross-sectional view of the present application;
[0020] Figure 3 is Figure 2A magnified view of a portion of the image;
[0021] Figure 4 This is the transmission spectrum of this utility model;
[0022] Figure 5 This is the reflectance curve of this utility model.
[0023] Label Explanation
[0024] Base layer 1, color enhancement layer 2, infrared protection hardening layer 3, REVO film layer 4, waterproof layer 5, oil-proof layer 6, anti-reflective layer 7, nano antibacterial layer 8. Detailed Implementation
[0025] 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.
[0026] 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.
[0027] like Figures 1 to 4 As shown, this utility model discloses an infrared-protecting sunglasses lens, having a base layer 1, wherein the material of the base layer 1 is PC or PA, and the preferred thickness is 1.5-2.5mm.
[0028] A color enhancement layer 2 is disposed on the convex surface of the substrate layer 1. The material of the color enhancement layer 2 may be boron chloride phthalocyanine, and the color enhancement layer 2 can absorb light with a wavelength of 570nm-590nm, with a preferred thickness of 3-6μm.
[0029] An infrared-resistant hardening layer 3 is disposed on the concave surface of the base layer 1 and on the color-enhancing layer 2. The preferred thickness of the infrared-resistant hardening layer 3 is 3-8 μm.
[0030] A REVO film layer 4 is disposed on the convex infrared-resistant hardening layer 3. The preferred thickness of the REVO film layer 4 is 80-150 nm.
[0031] A waterproof layer 5 is disposed on the REVO membrane layer 4. The preferred thickness of the waterproof layer 5 is 8-15 nm.
[0032] An oil-resistant layer 6 is disposed on the waterproof layer 5. The preferred thickness of the oil-resistant layer 6 is 8-15 nm.
[0033] An anti-reflection layer 7 is disposed on the concave infrared-resistant hardening layer 3. The preferred thickness of the anti-reflection layer 7 is 90-110 nm.
[0034] A nano-antibacterial layer 8 is disposed on the antireflective layer 7. The preferred thickness of the nano-antibacterial layer 8 is 5-15 nm.
[0035] A waterproof layer 5 is also disposed on the nano-antibacterial layer 8. The preferred thickness of the waterproof layer 5 is 8-15 nm.
[0036] Taking PC lenses as an example, the specific process steps for manufacturing this utility model are as follows:
[0037] The first step is to use PC material as raw material, dehumidify the plastic granules, and then use a mold to injection mold them to form the base layer 1 of the lens, with a thickness controlled at 1.5-2.5mm.
[0038] The second step is to coat the convex surface of the base layer 1 with a color enhancement layer 2. The material is boron chloride phthalocyanine, and the thickness is controlled to be 3-6μm. This color enhancement layer 2 can absorb light with a wavelength of 570nm-590nm, so that the lens has high contrast, that is, improves visual color contrast, enhances color saturation, and strengthens the human eye's ability to distinguish colors.
[0039] The third step involves coating an infrared-resistant hardening layer 3 onto the concave surface of the base layer 1 and the color-enhancing layer 2, with a thickness controlled at 3-8 μm, to give the lens infrared protection and scratch and abrasion resistance.
[0040] The fourth step is to vacuum-deposit an anti-reflection layer 7 on the concave infrared hardening layer 3, with a thickness controlled at 90-110nm, to reduce the reflection of light from the lens into the eye and make the vision clearer.
[0041] The fifth step is to vacuum-deposit a REVO film 4 on the convex infrared-resistant hardening layer 3, with a thickness controlled at 80-150nm. Different colors of REVO can be deposited as needed to make the lens colors more flexible and richer, and to increase the lens's dazzling effect.
[0042] The sixth step involves vacuum-depositing a nano-antibacterial layer 8 onto the antireflective layer 7, with a thickness controlled at 5-15 nm. This gives the inner surface of the lens an antibacterial effect, preventing accidental cross-infection of bacteria and fungi into the eyes. The specific material can be nano-silver.
[0043] Step 7: Vacuum vapor deposit a waterproof layer 5 on both the REVO membrane layer 4 and the nano antibacterial layer 8 to provide waterproofing. The membrane thickness is controlled to be 8-15nm.
[0044] Step 8: Vacuum vapor deposit an oil-resistant layer 6 onto the waterproof layer 5 on the convex side of the REVO membrane layer 4 to prevent oil damage. The membrane thickness is controlled to be 8-15nm.
[0045] This completes the processing and production of the infrared-protective sunglasses lens of this utility model.
[0046] The color-enhancing layer 2 of this invention improves visual color contrast and enhances color saturation, thereby strengthening the human eye's ability to distinguish colors. The infrared-resistant hardening layer 3 gives the lens infrared protection and scratch and abrasion resistance. The anti-reflective layer 7 reduces the amount of light reflected from the lens into the eyes, making vision clearer. The REVO coating layer 4 makes the lens colors more flexible and richer, increasing the lens's dazzling effect. The nano antibacterial layer 8 gives the inner surface of the lens an antibacterial effect, preventing eye infections. The waterproof layer 5 and the oil-resistant layer 6 provide waterproof and oil-resistant properties.
[0047] The product of this utility model has been tested and found that the lens has a light transmittance of 12-30%, a haze value of 0.8%, an infrared transmittance of 6%, and a reflectance of 1-1.8%, making it suitable for environments with strong ultraviolet radiation, such as the seaside, mountain climbing, and summer commuting.
[0048] 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. An infrared-protective sunglass lens, characterized by: A color layer is arranged on the convex surface of the base layer; an infrared-proof hard layer is arranged on the concave surface of the base layer and the color layer respectively; an REVO film layer is arranged on the infrared-proof hard layer of the convex surface; a waterproof layer is arranged on the REVO film layer, and an oil-proof layer is arranged on the waterproof layer; an anti-reflection layer is arranged on the infrared-proof hard layer of the concave surface, a nano-antibacterial layer is arranged on the anti-reflection layer, and a waterproof layer is arranged on the nano-antibacterial layer.
2. An infrared-protective sunglass lens as in claim 1, wherein: The material of the base layer is PC or PA.
3. An infrared-protective sunglass lens as in claim 1, wherein: The material of the color layer is boron chloride subphthalocyanine, which absorbs light with a wavelength of 570-590 nm, and the thickness is 3-6 μm.
4. An infrared-protective sunglass lens as in claim 1, wherein: The thickness of the infrared-proof hard layer is 3-8 μm.
5. An infrared-protective sunglass lens as in claim 1, wherein: The thickness of the REVO film layer is 80-150 nm.
6. An infrared-protective sunglass lens as in claim 1, wherein: The thickness of the waterproof layer is 8-15 nm.
7. An infrared-protective sunglass lens as in claim 1, wherein: The thickness of the oil-proof layer is 8-15 nm.
8. An infrared-protective sunglass lens as in claim 1, wherein: The thickness of the anti-reflection layer is 90-110 nm.
9. An infrared-protective sunglass lens as in claim 1, wherein: The thickness of the nano-antibacterial layer is 5-15 nm.