Resin lens with high refractive index

Abstract

The utility model discloses a resin lens with high refractive index, which comprises a resin base layer, and a hardening layer is dip-coated on the surface of the resin base layer. The interface gradient film layer is plated on the surface of the hardening layer and comprises an aluminum oxide film bottom layer with the thickness of 10 nm, a zirconium dioxide film middle layer with the thickness of 20-30 nm and a silicon dioxide film upper layer with the thickness of 30-50 nm, and the porosity of the silicon dioxide film upper layer is maximum; the high-folding film group is plated on the surface of the interface gradient film layer and comprises titanium dioxide film layers and niobium pentoxide film layers, and the titanium dioxide film layers and the niobium pentoxide film layers alternately form 7-9 layers; the blue-light-resistant film layer is arranged on the surface of the high-folding film group; and the wear-resistant layer is arranged on the surface of the blue-light-resistant film layer. According to the utility model, the bonding of the high-folding film group is improved through the interface gradient film layer, and the film layer is good in adherence and high in durability; and meanwhile, the high-folding film group is composed of the titanium dioxide film layers and the niobium pentoxide film layers which alternately form 7-9 layers, so that the refractive index is improved, and the troubles of sheet type enlargement and uncomfortable wearing are avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to lens technical field, specifically, relate to a high refractive index resin lens. BACKGROUND

[0002] Refractive index is the ratio of the speed of light in a vacuum to the speed of light in the material. The higher the refractive index of the material, the stronger the ability to refract incident light. The higher the refractive index, the thinner the lens, that is, the same center thickness, the same degree of material, the refractive index of the high refractive index is thinner than the refractive index of the lens edge. The common eye lens on the market is divided into glass sheet, resin sheet and the like according to the material. Because of strong impact resistance, not easy to break, resin lens is more and more favored by people. With the development of the eyewear market, consumers' awareness of resin lenses is constantly improving, and they also have higher requirements for the performance and function of the product, so that the sales of low-refraction lenses gradually decline, and lenses with high refractive index and excellent performance are favored by consumers. At present, the high-refraction lenses on the domestic market usually rely on imported materials, such as MR174, MR-7, MR-8, which not only have high cost, but also are completely imported, which is not conducive to the development of the domestic lens industry, and the refractive index of ordinary resin material is low. Therefore, it is necessary to develop a resin lens with high refractive index by coating. SUMMARY

[0003] Therefore, the technical problem to be solved by the utility model is to provide a high-refraction resin lens, which avoids the low refractive index of the conventional resin lens, resulting in an increase in the size of the lens and discomfort when wearing.

[0004] In order to solve the above technical problem, the utility model discloses a high-refraction resin lens, which comprises:

[0005] A resin base layer, the surface of which is coated with a hard layer;

[0006] An interface gradient film layer plated on the surface of the hard layer, which comprises a 10nm-thick aluminum oxide film bottom layer, a 20-30nm-thick zirconium dioxide film middle layer, and a 30-50nm-thick silicon dioxide film upper layer, wherein the silicon dioxide film upper layer has the largest porosity;

[0007] A high-refraction film group plated on the surface of the interface gradient film layer, which comprises a titanium dioxide film layer and a niobium pentoxide film layer, and the two are alternately formed into 7-9 layers;

[0008] An anti-blue light film layer arranged on the surface of the high-refraction film group; and

[0009] A wear-resistant layer arranged on the surface of the anti-blue light film layer.

[0010] According to the embodiment of the present application, the porosity of the alumina film bottom layer is less than 5%, the porosity of the zirconium dioxide film middle layer is 5%-10%, and the porosity of the silicon dioxide film upper layer is 15%.

[0011] According to the embodiment of the present application, the refractive index of the high-refraction film group is 2.0-2.2, and the total thickness is 200-300 nm.

[0012] According to the embodiment of the present application, the anti-blue light film layer is selected from a metal oxide film layer, and the thickness is 800-1000 nm.

[0013] According to the embodiment of the present application, the wear-resistant layer is a fluorinated silicon film layer.

[0014] Compared with the prior art, the present application can obtain the following technical effects:

[0015] The interface gradient film layer is composed of an alumina film bottom layer, a zirconium dioxide film middle layer, and a silicon dioxide film upper layer, and has a thickness gradient and gradually increasing porosity, which can improve the bonding of the high-refraction film group, and the film layer has good adhesion and high durability.

[0016] The high-refraction film group is composed of a titanium dioxide film layer and a niobium pentoxide film layer, and 7-9 layers of the two are alternately formed, which improves the refractive index and avoids the increase of the size of the lens and the discomfort caused by wearing.

[0017] Of course, any product implementing the present application does not necessarily need to achieve all the technical effects described above. BRIEF DESCRIPTION OF DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present application, and form a part of the present application. The schematic embodiments of the present application and the description thereof are used to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

[0019] Figure 1 It is a high-refraction resin lens schematic diagram of the embodiment of the present application.

[0020] IDENTIFICATION OF DRAWINGS

[0021] Resin base layer 10, hardening layer 20, interface gradient film layer 30, high-refraction film group 40, anti-blue light film group 50, and wear-resistant layer 60. DETAILED DESCRIPTION

[0022] The embodiments of the present application will be described in detail below with reference to the drawings and embodiments, so that the realization process of how to apply technical means to solve technical problems and achieve technical effects of the present application can be fully understood and implemented.

[0023] Please refer toFigure 1 , Figure 1 This is a schematic diagram of a high refractive index resin lens according to an embodiment of the present invention.

[0024] As shown in the figure, a high-refractive-index resin lens includes a resin base layer 10, the surface of which is coated with a hardening layer 20; an interface gradient film layer 30 deposited on the surface of the hardening layer 20, the interface gradient film layer 30 including a 10nm thick alumina film bottom layer, a 20-30nm thick zirconium dioxide film middle layer, and a 30-50nm thick silicon dioxide film top layer, wherein the silicon dioxide film top layer has the largest porosity; a high-refractive-index film group 40 deposited on the surface of the interface gradient film layer 30, the high-refractive-index film group 40 including a titanium dioxide film layer and a niobium pentoxide film layer, which are alternately formed in 7-9 layers; an anti-blue light film layer 50 disposed on the surface of the high-refractive-index film group 40; and a wear-resistant layer 60 disposed on the surface of the anti-blue light film layer 50.

[0025] In one embodiment of this utility model, the resin base layer 10 is formed by resin curing and molding, and the surface is immersed in a hardening liquid to form a hardening layer 20, which can be selected from an organosilicon film layer. The interface gradient film layer 30 is used to enhance the adhesion of the interface. Specifically, the interface gradient film layer 30 is composed of an alumina film bottom layer, a zirconium dioxide film middle layer, and a silica film top layer. The thickness of the three layers is designed to gradually increase, making them less prone to peeling. The porosity of the alumina film bottom layer is <5%, the porosity of the zirconium dioxide film middle layer is 5%-10%, and the porosity of the silica film top layer is 15%. The increased porosity facilitates the penetration and bonding of the layer itself and the subsequent high-folding film assembly 40. At the same time, the film layer has good adhesion and high durability.

[0026] The high-refractive-index coating group 40 includes a titanium dioxide film layer and a niobium pentoxide film layer, both of which are oxide metal films, and are continuously stacked to form a 7-9 layer design. The refractive index is 2.0-2.2, and the total thickness is 200-300nm, which improves the refractive index of the lens.

[0027] The anti-blue light film 50 of this invention is selected from metal oxide film layers, such as zirconium dioxide film layers, and is deposited by a coating machine with a thickness of 800-1000nm.

[0028] In addition, the wear-resistant layer 60 is a fluorinated silicon film layer, which improves the surface hardness of the lens.

[0029] In summary, this invention improves the bonding of the high-refractive-index film group through an interface gradient film layer, resulting in good film adhesion and high durability. At the same time, the high-refractive-index film group is composed of titanium dioxide film layer and niobium pentoxide film layer, which alternate to form 7-9 layers, thereby increasing the refractive index and avoiding the trouble of increased plate size and uncomfortable wearing.

[0030] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A high-refractive-index resin lens, characterized in that, include: A resin base layer, the surface of which is coated with a hardening layer; An interface gradient film layer is deposited on the surface of the hardened layer. The interface gradient film layer includes a 10 nm thick alumina film bottom layer, a 20-30 nm thick zirconium dioxide film middle layer, and a 30-50 nm thick silicon dioxide film top layer, wherein the silicon dioxide film top layer has the largest porosity. A high-refractive-index film group is deposited on the surface of the interface gradient film layer, the high-refractive-index film group comprising titanium dioxide film layer and niobium pentoxide film layer, the two alternatingly forming 7-9 layers; An anti-blue light film layer disposed on the surface of the high-refractive-index film assembly; and A wear-resistant layer is disposed on the surface of the anti-blue light film.

2. The high refractive index resin lens according to claim 1, characterized in that, The alumina film has a bottom layer porosity of <5%, the zirconium dioxide film has a middle layer porosity of 5%-10%, and the silica film has an upper layer porosity of 15%.

3. The high refractive index resin lens according to claim 1, characterized in that, The high-refractive-index film group has a refractive index of 2.0-2.2 and a total thickness of 200-300 nm.

4. The high refractive index resin lens according to claim 1, characterized in that, The anti-blue light film is selected from metal oxide films and has a thickness of 800-1000 nm.

5. The high refractive index resin lens according to claim 1, characterized in that, The wear-resistant layer is configured as a fluorinated silicon film layer.

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