CN-117572667-B - Method for regulating color layer diversification of color pupil by electric field

Abstract

The invention discloses a method for diversifying color layers of an electric field-controlled color pupil, which comprises the following steps of S1, manufacturing a front lens base and a rear lens base, S2, injecting liquid metal into a concave surface of the front lens base, then injecting electrolyte, S3, arranging a working electrode and a counter electrode, S4, electrifying the surface of the liquid metal to form an oxidation film, S5, continuously electrifying to enable the oxidation film to generate gradually concentrated stress, buckling and forming wrinkles on the surface of the oxidation film after exceeding a critical value, S6, enabling the oxidation film to form a required wrinkle pattern by adjusting relative positions of a working electrode and a counter electrode, S7, enabling the oxidation film to be attached to the concave surface of the front lens base, and S8, attaching the rear lens base to the front lens base in the step S7 to finish the preparation of the lens. The gallium oxide film with the fold microstructure and the front base of the contact lens form equal-thickness interference, so that reflected light rays can show light brightness and color change under the irradiation of external light rays.

Inventors

• CHEN HAO
• YANG CHENG

Assignees

• 温州医科大学附属眼视光医院

Dates

Publication Date

20260508

Application Date

20230925

Claims (7)

1. 1. A method for regulating color layer diversification of color pupils by an electric field is characterized by comprising the following steps: s1, manufacturing a lens front base and a lens back base; s2, injecting liquid metal into the concave surface of the front lens base, and then injecting electrolyte; s3, arranging a working electrode and a counter electrode, wherein the working electrode passes through the electrolyte to be in contact with the liquid metal, and the counter electrode is in contact with the surface of the electrolyte; s4, electrifying to enable the working electrode to form an anode, enabling the counter electrode to form a cathode, and forming an oxidation film on the surface of the liquid metal; s5, continuously electrifying to enable the oxidized film to generate gradually accumulated stress, and enabling the surface of the oxidized film to flex and form wrinkles after exceeding a critical value; s6, adjusting the relative positions of the working electrode and the counter electrode so as to enable the oxidized film to form a required fold pattern; S7, removing the working electrode and the counter electrode, and removing liquid metal and electrolyte remained in the concave surface of the front lens base, so that the oxide film is attached to the concave surface of the front lens base; And S8, attaching the rear lens base with the front lens base in the step S7 to finish the preparation of the lens.
2. 2. The method for diversifying color layers of an electric field controlled color pupil according to claim 1, wherein the front lens base and the rear lens base are made of hydrophilic and oxygen-permeable polymer gel materials.
3. 3. The method for color layer diversity of an electric field controlled color pupil of claim 1, wherein the liquid metal is gallium, gallium indium tin alloy, and metal or alloy material with melting point lower than 200 ℃.
4. 4. The method of claim 1, wherein the working electrode and the counter electrode are made of inert conductive materials.
5. 5. The method of claim 4 wherein the inert conductive material is any one of noble metal, metal oxide, carbon, and derivatives and alloys thereof.
6. 6. The method for diversifying color layers of an electric field-controlled color pupil according to claim 1, wherein the electrolyte is a salt solution or a molten salt of an aqueous or organic solvent.
7. 7. The method for adjusting color layer diversity of color pupil by using an electric field according to claim 1, wherein in step S6, the magnitude of the current, the intensity of the electric field or the distribution of the electric field is controlled in real time, so that a required fold pattern is formed controllably.

Description

Method for regulating color layer diversification of color pupil by electric field Technical Field The invention particularly relates to a method for regulating color layer diversification of a color pupil by an electric field. Background The color pupil is a cornea contact lens for beauty and decoration. The color pupil has a special color that allows the wearer to change their iris appearance. At present, the color pupil is prepared mainly by arranging a pigment layer between two layers of contact lenses through transfer printing and other technologies, the scheme is very mature, but the shape of a transfer printing tool determines that the transfer printing tool can only realize a color layer with a single pattern, so that the demand of the market for color pupil diversity is difficult to meet. Disclosure of Invention Aiming at the defects existing in the prior art, the invention aims to provide a method for regulating and controlling color layer diversification of color pupils by an electric field. In order to achieve the above purpose, the present invention provides the following technical solutions: a method for regulating color layer diversification of color pupil by an electric field comprises the following steps: s1, manufacturing a lens front base and a lens back base; s2, injecting liquid metal into the concave surface of the front lens base, and then injecting electrolyte; s3, arranging a working electrode and a counter electrode, wherein the working electrode passes through the electrolyte to be in contact with the liquid metal, and the counter electrode is in contact with the surface of the electrolyte; s4, electrifying to enable the working electrode to form an anode, enabling the counter electrode to form a cathode, and forming an oxidation film on the surface of the liquid metal; s5, continuously electrifying to enable the oxidized film to generate gradually accumulated stress, and enabling the surface of the oxidized film to flex and form wrinkles after exceeding a critical value; s6, adjusting the relative positions of the working electrode and the counter electrode so as to enable the oxidized film to form a required fold pattern; S7, removing the working electrode and the counter electrode, and removing liquid metal and electrolyte remained in the concave surface of the front lens base, so that the oxide film is attached to the concave surface of the front lens base; And S8, attaching the rear lens base with the front lens base in the step S7 to finish the preparation of the lens. The front lens base and the rear lens base are made of hydrophilic and oxygen-permeable polymer gel materials. The liquid metal is gallium, gallium indium tin alloy or metal or alloy material with the melting point lower than 200 ℃. The working electrode and the counter electrode are made of inert conductive materials. The inert conductive material is any one of noble metal, metal oxide, carbon and derivative materials and alloys thereof. The electrolyte is a salt solution or molten salt of an aqueous or organic solvent. In step S6, the magnitude of the current, the strength of the electric field or the distribution of the electric field is controlled in real time, so that the required wrinkle pattern is formed controllably. The method has the beneficial effects that the shape of the color layer of the color pupil can be regulated and controlled in the preparation process of the color pupil by utilizing the gradient and vectorization of the electric field, so that the diversified design of the color layer of the color pupil is realized on the premise of not needing to redesign the color pupil preparation instrument. The gallium oxide film with the fold microstructure and the front base of the contact lens form equal-thickness interference, so that reflected light rays can show light brightness and color change under the irradiation of external light rays. Drawings Fig. 1 is a schematic diagram of a process of an electric field controlling color layer of a color pupil according to the present invention. Fig. 2 is a schematic diagram of an electric field control color pupil color layer according to the present invention, where a represents a liquid metal element. Fig. 3 is a schematic diagram of the color changing principle of the color layer of the color pupil of the present invention. Detailed Description The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention. It should be noted that all directional indicators (such as up, down, left, right, front, and rear are used in the embodiments of the present invention) are