A process for preparing highly wear-resistant and scratch-resistant anti-fog optical lenses

Abstract

The invention discloses a highly wear-resistant and scratch-resistant anti-fog optical lens preparation process, which includes: providing a cured resin substrate, and sending it into a hardening tank for hardening after cleaning; ultrasonically cleaning and drying the hardened resin substrate again; placing the dried resin substrate into a coating machine for coating a functional film layer; sending it into a spin coater after coating, and spin-coating a silicon carbide primer layer; then sending it into an ion sputtering instrument, and covering the surface of the resin substrate with a mold having nano-mesh holes, using ion bombardment to sputter a layer of fluorine-silicon mixed ion layer on the surface of the silicon carbide primer layer; curing the ion-sputtered resin substrate by ultraviolet light, and ultrasonically cleaning and drying; vacuum plasma cleaning; and molybdenum boat evaporation anti-fog layer. The surface of the resin substrate of the invention is firstly spin-coated with a silicon carbide primer layer to enhance the hardness, and then ion sputtering is combined with a mold to form a fluorine-silicon mixed ion layer with pits. At this time, the uneven fluorine-silicon mixed ion layer provides the anti-scratch and wear-resistant characteristics of the outermost anti-fog layer, greatly enhancing the surface strength of the lens and improving the service life.

Description

Technical Field

[0001] The invention belongs to the technical field of lenses, and in particular relates to a process for preparing a highly wear-resistant and scratch-resistant anti-fog optical lens. Background Art

[0002] Lenses are transparent materials with one or more curved surfaces made of optical materials such as glass or resin. After polishing, they are often assembled with glasses frames to form glasses. They are used to correct the user's vision and obtain a clear field of vision.

[0003] When people use optical lenses, they often put them on the table when they take them off. Due to the effects of dust and particles, the optical lenses are easily worn, and then scratched, affecting people's use. The wear resistance is poor, especially in winter, the lenses are easy to fog up, and the wearer often needs to wipe back and forth, which further wears the lens surface. Therefore, in order to solve this problem, it is necessary to improve the lens itself. Summary of the invention

[0004] In view of this, the technical problem to be solved by the present invention is to provide a process for preparing highly wear-resistant and scratch-resistant anti-fog optical lenses, thereby avoiding the trouble of poor scratch and wear resistance of previous optical lenses.

[0005] In order to solve the above technical problems, the present invention discloses a process for preparing a highly wear-resistant and scratch-resistant anti-fog optical lens, which comprises: Step a. providing a cured resin substrate, treated with a sodium hydroxide solvent, and then ultrasonically cleaned; Step b. The cleaned resin substrate is dried and sent to a hardening tank for hardening; Step c. The hardened resin substrate is again ultrasonically cleaned and dried; Step d. After drying, the resin substrate is placed in a coating machine to coat a functional film layer; Step e. After coating, the coating is sent to a spin coater, a silicon carbide base coat is spin-coated, and then cured by ultraviolet light; Step f. The cured resin substrate is fed into an ion sputtering apparatus, and a layer of a mold having nano-mesh is covered on the surface of the resin substrate, and a fluorine-silicon mixed ion layer is sputtered on the surface of the silicon carbide primer by ion bombardment; Step g. The ion sputtered resin substrate is cured by UV light, ultrasonically cleaned, and dried; Step h. vacuum plasma cleaning; Step i. Evaporating an anti-fog layer on a molybdenum boat.

[0006] According to one embodiment of the present invention, the thickness of the silicon carbide base coating in the above step e is 146-260 nm.

[0007] According to one embodiment of the present invention, in the above step f, the fluorine-silicon mixed ion layer forms nano-pits of different depths and widths on the surface of the silicon carbide base coating.

[0008] According to one embodiment of the present invention, the functional film layer in the above step d includes one or more of an anti-ultraviolet film layer, an anti-blue light film layer, and an anti-reflection film layer.

[0009] According to one embodiment of the present invention, the thickness of the anti-fog layer in the above step i is 20-60 nm.

[0010] According to one embodiment of the present invention, the anti-fog layer in the above step i is selected from a water-absorbing polyurethane layer.

[0011] Compared with the prior art, the present invention can achieve the following technical effects: The surface of the resin substrate is first spin-coated with a silicon carbide primer to enhance its hardness, and then a fluorine-silicon mixed ion layer with pits is formed through ion sputtering and cooperation with a mold. At this time, the uneven fluorine-silicon mixed ion layer provides the outermost anti-fog layer with anti-scratch and wear-resistant properties, greatly enhancing the surface strength of the lens and improving its service life.

[0012] Of course, any product implementing the present invention does not necessarily need to achieve all of the above-mentioned technical effects at the same time. DETAILED DESCRIPTION

[0013] The following will describe the implementation methods of the present invention in detail with reference to examples, so that the implementation process of how the present invention applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0014] A process for preparing a highly wear-resistant and scratch-resistant anti-fog optical lens, comprising: Step a. providing a cured resin substrate, treating it with a sodium hydroxide solvent, and then ultrasonically cleaning it to remove surface stains; Step b. The cleaned resin substrate is dried and sent to a hardening tank for hardening to increase hardness; Step c. The hardened resin substrate is again ultrasonically cleaned and dried; Step d. The dried resin substrate is placed in a coating machine to coat a functional film layer to enhance the functionality of the lens itself, such as radiation resistance, anti-reflection, blue light protection, etc.; Step e. After coating, the coating is sent to a spin coater, a silicon carbide base coating is spin-coated, and cured by ultraviolet light; the thickness of the silicon carbide base coating is 146-260nm; Step f. The cured resin substrate is fed into an ion sputtering apparatus, and a layer of a mold having nano-mesh is covered on the surface of the resin substrate, and a fluorine-silicon mixed ion layer is sputtered on the surface of the silicon carbide primer by ion bombardment; Step g. The ion sputtered resin substrate is cured by UV light, ultrasonically cleaned, and dried; Step h. vacuum plasma cleaning; Step i. Evaporating an anti-fog layer on a molybdenum boat, the thickness of the anti-fog layer is 20-60 nm.

[0015] In one embodiment of the present invention, the resin substrate is formed by curing the resin, and after cleaning and drying, a hardening liquid is dipped to form a hardening layer to preliminarily improve the hardness of the resin substrate. Then, a functional film layer is plated in a coating machine, and the functional film layer includes one or more of an anti-ultraviolet film layer, an anti-blue light film layer, and an anti-reflection film layer. After coating, a silicon carbide primer layer is spin-coated to improve the wear resistance of the lens surface and carry the fluorine-silicon mixed ion layer.

[0016] The fluorine-silicon mixed ion layer is sputtered by an ion sputtering device, and passes through a mold with nano-mesh holes to form an irregular ion membrane layer on the surface of the resin substrate. Because of the nano-mesh holes, the fluorine-silicon mixed ions will form staggered intervals, and the surface height will not be consistent, resulting in an uneven reinforced wear-resistant layer. At this time, a layer of anti-fog layer is applied to enhance the adhesion with the anti-fog layer. At the same time, the uneven ion surface can further enhance the wear and scratch resistance of the anti-fog layer, thereby enhancing the surface performance of the overall lens.

[0017] In step f, the fluorine-silicon mixed ion layer forms nano-pits of different depths and widths on the surface of the silicon carbide base coating, and the uneven surface state can improve the scratch resistance and wear resistance of the surface.

[0018] In step i, the anti-fog layer is selected from a water-absorbing polyurethane layer, which has good anti-fog properties.

[0019] In summary, the surface of the resin substrate of the present invention is first spin-coated with a silicon carbide primer layer to enhance the hardness, and then a fluorine-silicon mixed ion layer with pits is formed through ion sputtering and cooperation with a mold. At this time, the uneven fluorine-silicon mixed ion layer provides the anti-scratch and wear-resistant properties of the outermost anti-fog layer, greatly enhancing the surface strength of the lens and improving the service life.

[0020] The above description shows and describes several preferred embodiments of the present invention, but as mentioned above, it should be understood that the present invention is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the invention concept described herein through the above teachings or the technology or knowledge of the relevant field. Changes and variations made by those skilled in the art do not depart from the spirit and scope of the present invention, and should be within the scope of protection of the claims attached to the present invention.

Claims

1. A process for preparing a highly wear-resistant and scratch-resistant anti-fog optical lens, characterized in that: include: Step a. providing a cured resin substrate, treated with a sodium hydroxide solvent, and then ultrasonically cleaned; Step b. The cleaned resin substrate is dried and sent to a hardening tank for hardening; Step c. The hardened resin substrate is again ultrasonically cleaned and dried; Step d. The dried resin substrate is placed in a coating machine to coat a functional film layer; Step e. After coating, the coating is sent to a spin coater, a silicon carbide base coat is spin-coated, and then cured by ultraviolet light; Step f. The cured resin substrate is fed into an ion sputtering apparatus, and a layer of a mold having nano-mesh is covered on the surface of the resin substrate, and a fluorine-silicon mixed ion layer is sputtered on the surface of the silicon carbide primer by ion bombardment; Step g. The ion sputtered resin substrate is cured by UV light, ultrasonically cleaned, and dried; Step h. vacuum plasma cleaning; Step i. Evaporating an anti-fog layer on a molybdenum boat.

2. The process for preparing a highly wear-resistant and scratch-resistant anti-fog optical lens according to claim 1, characterized in that: The thickness of the silicon carbide base coating in step e is 146-260 nm.

3. The process for preparing a highly wear-resistant and scratch-resistant anti-fog optical lens according to claim 1, characterized in that: In step f, the fluorine-silicon mixed ion layer forms nano-pits of different depths and widths on the surface of the silicon carbide base coating.

4. The process for preparing a highly wear-resistant and scratch-resistant anti-fog optical lens according to claim 1, characterized in that: The functional film layer in step d includes one or more of an anti-ultraviolet film layer, an anti-blue light film layer, and an anti-reflection film layer.

5. The process for preparing a highly wear-resistant and scratch-resistant anti-fog optical lens according to claim 1, characterized in that: The thickness of the anti-fog layer in step i is 20-60 nm.

6. The process for preparing a highly wear-resistant and scratch-resistant anti-fog optical lens according to claim 1, characterized in that: The anti-fog layer in step i is selected from a water-absorbing polyurethane layer.