Lens with alkali-proof effect

Abstract

The utility model discloses a lens with an alkali-proof effect, which relates to the technical field of lenses, comprises a main body, and is characterized in that the surface of the main body is coated with a coating I, the periphery of the coating I is coated with a coating II, the upper end and the lower end of the coating II are both in a dish shape, the middle part of the coating II is coated with a coating III, and the coating III is coated with a coating II. The upper end and the lower end of the second coating are both coated with third coatings. Compared with an existing common lens, the lens with the alkali-proof effect has the advantages that the first coating can prevent the surface of the main body from being abraded in daily use, so that substances capable of damaging the main body can be isolated outside, and the second coating can prevent alkali or alkaline substances from staying on the surface of the lens for a long time, so that the service life of the lens is prolonged. And when a user unintentionally puts alkali-containing or alkaline substances on the lens, the PH value of the surface of the lens changes, and the color of the coating III changes along with the change of the PH value, so that the user can visually perceive the color of the coating III.

Description

Technical Field

[0001] The utility model relates to the technical field of lenses, in particular to a lens with alkali-proof effect. Background Art

[0002] Lenses are a common daily necessity. Currently, there are many ways to classify lenses. They can be classified according to the material, function, and surface processing technology of the lenses. Usually, lenses can be divided into glass lenses, resin lenses, PC lenses, etc. according to different materials.

[0003] For example, the application number is 201822229904.8, an anti-oxidation and anti-blue light lens, comprising a substrate and a film layer arranged on the outer surface of the substrate, the film layer comprising a base layer, an anti-oxidation layer, an anti-blue light layer and a protective layer stacked in sequence from the inside to the outside, the base layer comprising a first low refractive index film layer; the anti-oxidation layer is a fourth selenium layer, and the anti-blue light layer is composed of a total of 3-7 layers of high refractive index film layers and low refractive index film layers alternating. The anti-oxidation and anti-blue light lens of the utility model has good anti-oxidation and anti-blue light effects, and when there is a pattern, the pattern is tightly combined with the lens, the pattern is clear and lifelike, does not fade, does not affect the wearer's vision, and has a good market prospect. However, the lens is not convenient for preventing the lens from being damaged by alkali or alkaline substances, and the user may use an alkali-containing detergent to clean the lens without knowing it during daily maintenance of the lens, which is not convenient for further extending the service life of the lens.

[0004] Therefore, in view of this, the existing structural deficiencies are studied and improved, and a lens with alkali-proof effect is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a lens with alkali-proof effect to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a lens with alkali-proof effect, comprising a main body, the surface of the main body is coated with coating one, and coating one completely wraps the main body, the four sides of the coating one are coated with coating two, and coating two completely wraps coating one, the upper and lower ends of the coating two are both set to be dish-shaped, and the middle part of the coating two is coated with coating three, and the upper and lower ends of the coating two are coated with coating three.

[0007] Preferably, when the main body is a hyperopic lens, the highest point of the edge of the second coating needs to be 2 μm higher than the highest point of the main body, and when coating the third coating, no matter what kind of lens the main body is, the second coating needs to be filled.

[0008] Preferably, the coating one is a wear-resistant coating, the coating thickness of the coating one is between 2-4 μm, and the chemical vapor deposition technology should be used for processing during the coating.

[0009] Preferably, the second coating is a hydrophobic coating, specifically a silicon oxide coating. The thickness of the second coating is the same as that of the first coating, and when the second coating is coated on the myopia lens, the edge thickness is the same as the average thickness of the second coating. The second coating is also coated using chemical vapor deposition technology, and a mask or mold can be used to limit and guide the shape of the second coating when coating.

[0010] Preferably, the coating layer 3 is a protective coating, specifically a pH indicator coating. The coating layer 3 contains a pH sensitive material, and the coating layer 3 should be coated by a solution method.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The utility model has a main body, coating one, coating two and coating three. In daily use, coating one can prevent the surface of the main body from being worn, and coating one is wrapped around the main body, so that substances that can damage the main body can be isolated. Coating one can prevent alkali or alkaline substances from staying on the lens surface for a long time when the user performs daily maintenance on the main body, thereby further preventing the main body from reacting with them. When the user accidentally puts alkali or alkaline substances on the lens, the pH value of the lens surface will change. At this time, the color of coating three will change with the change of pH value, so that the user can intuitively know that the lens has been contaminated with alkali or alkaline substances, so that the user can avoid alkali or alkaline substances during the next cleaning, maintenance or use, thereby actively extending the service life of the lens. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall cross-sectional structure of the utility model;

[0014] Figure 2 For this utility model Figure 1 Enlarged structural diagram at A in the middle.

[0015] In the figure: 1, main body; 2, coating one; 3, coating two; 4, coating three. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] like Figure 1-Figure 2 As shown, a lens with alkali-proof effect includes a main body 1, characterized in that a coating 2 is coated on the surface of the main body 1, and the coating 2 completely wraps the main body 1, a coating 3 is coated around the coating 2, and the coating 3 completely wraps the coating 2, the upper and lower ends of the coating 3 are both set to be dish-shaped, and the middle of the coating 3 is coated with a coating 3 4, and the upper and lower ends of the coating 3 are coated with the coating 3 4. When the main body 1 is a convex lens for farsightedness, the highest point of the edge of the coating 2 3 needs to be 2μm higher than the highest point of the main body 1. When coating, the coating 3 4 needs to be coated regardless of what kind of lens the main body 1 is. The coating 2 is filled with coating 3, coating 2 is a wear-resistant coating, the coating thickness of coating 2 is between 2-4 μm, and the chemical vapor deposition technology CVD should be used for processing during coating. Coating 3 is a hydrophobic coating, specifically a silicon oxide coating, the thickness of coating 3 is the same as that of coating 2, and when coating 3 is coated on the myopia lens, its edge thickness is the same as the average thickness of coating 3, and coating 3 also uses chemical vapor deposition technology CVD during coating, and a mask or mold can be used to limit and guide the shape of coating 3 during coating, and coating 34 is a protective coating, specifically a pH indicator coating. The interior of coating 34 contains pH sensitive materials, and coating 34 should be coated by a solution method. During daily use, coating 1 2 can prevent the surface of the main body 1 from being worn, and coating 1 2 is wrapped around the main body 1, so that substances that can damage the main body 1 can be isolated from the outside. Coating 2 3 can prevent alkali or alkaline substances from staying on the lens surface for a long time when the user performs daily maintenance on the main body 1, thereby further preventing the main body 1 from reacting with them. When the user accidentally drops alkali or alkaline substances on the lens, the pH value of the lens surface will change. At this time, the color of coating 3 4 will change with the change of pH value. This can not only let the user intuitively know that the lens has been contaminated with alkali or alkaline substances, but also allow the user to avoid alkali or alkaline substances during the next cleaning, maintenance or use, thereby actively extending the service life of the lens.

[0018] Furthermore, the coating 1 2 is made of silicon nitride because it has the advantages of high hardness, good wear resistance, good corrosion resistance, etc., which can prevent scratches on the surface of the main body 1. It can also prevent harmful substances from directly contacting the main body 1 after the coating 2 3 and the coating 3 4 are worn.

[0019] Furthermore, coating 23 uses silicon oxide because it has excellent wear resistance and corrosion resistance, and can also prevent water stains on the surface of the lens. Because silicon oxide can form a uniform and smooth surface on the lens, when water is on the surface of coating 23, it will condense into water droplets on its surface, thereby reducing the residual water stains and further preventing harmful substances from remaining on the lens.

[0020] Furthermore, coating three 4 uses a pH indicator coating because it includes pH-sensitive materials such as phenolphthalein and methyl blue bromate, which can let the user know what things cannot touch the lens surface by changing color, and the pH value of the lens surface can be changed by rinsing with clean water to restore the discolored position on the lens to a transparent state.

[0021] Furthermore, coating 1 2 wraps around main body 1 to better protect it and prevent harmful substances from entering between coating 1 2 and main body 1 .

[0022] Furthermore, coating 2 3 wraps coating 1 2 because coating 1 2 is not hydrophobic, thereby preventing liquid from entering between coating 2 3 and coating 1 2, thereby further improving the protection of main body 1.

[0023] Furthermore, the coating layer 3 4 is plated inside the coating layer 2 3 to prevent alkaline substances from entering the side of the lens, thereby preventing the discoloration from being irreversible.

[0024] Furthermore, coating 1 2 and coating 2 3 are processed using chemical vapor deposition (CVD) because the film made using CVD has good uniformity and density and is often used in optical films.

[0025] Furthermore, coating three 4 adopts a solution method because it can ensure uniform coating thickness during coating and can also control the thickness.

[0026] Working principle: When using the lens with anti-alkali effect, firstly, coating 1 2 can prevent the surface of the main body 1 from being worn during daily use, and coating 1 2 is wrapped around the main body 1, so that the substances that can damage the main body 1 can be isolated from the outside, and coating 2 3 can prevent the user from staying on the lens surface for a long time when performing daily maintenance on the main body 1, thereby further preventing the main body 1 from reacting with it, and when the user accidentally puts the substance containing alkali or alkaline on the lens, the pH value of the lens surface will change, and the color of coating 3 4 will change with the change of pH value, so that the user can intuitively know that the lens has been contaminated with substances containing alkali or alkaline, so that the user can avoid the substances containing alkali or alkaline during the next cleaning, maintenance or use, and then actively extend the service life of the lens. This is the working principle of the lens with anti-alkali effect.

Claims

1. A lens with alkali-proof effect, comprising a main body (1), characterized in that: The surface of the main body (1) is coated with coating one (2), and coating one (2) completely wraps the main body (1); coating two (3) is coated around the coating one (2), and coating two (3) completely wraps the coating one (2); the upper and lower ends of the coating two (3) are both arranged in a dish shape, and the middle of the coating two (3) is coated with coating three (4); the upper and lower ends of the coating two (3) are both coated with coating three (4).

2. The lens with alkali-proof effect according to claim 1, characterized in that: When the main body (1) is a hyperopic lens, the highest point of the edge of the second coating (3) needs to be 2 μm higher than the highest point of the main body (1). When coating, the third coating (4) needs to fill the second coating (3) regardless of the type of lens the main body (1) is.

3. The lens with alkali-proof effect according to claim 1, characterized in that: The coating one (2) is a wear-resistant coating, and the coating thickness of the coating one (2) is between 2-4 μm. Chemical vapor deposition technology should be used for processing during coating.

4. The lens with alkali-proof effect according to claim 1, characterized in that: The second coating (3) is a hydrophobic coating. The thickness of the second coating (3) is the same as that of the first coating (2). When the second coating (3) is coated on a myopia lens, its edge thickness is the same as the average thickness of the second coating (3). The second coating (3) is also coated using chemical vapor deposition technology. When coating, a mask or a mold can be used to limit and guide the shape of the second coating (3).

5. The lens with alkali-proof effect according to claim 1, characterized in that: The coating three (4) is a protective coating, specifically a pH indicator coating. The coating three (4) contains a pH sensitive material, and the coating three (4) should be coated using a solution method.

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