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Intelligent contact lens and preparation method thereof

A contact lens, intelligent technology, applied in the field of glasses, can solve the problems of harsh preparation conditions, affecting the degree of polymerization and uniformity of lenses, and extremely high requirements, achieving excellent flexibility and bonding performance, stable electrical signal transmission, and high safety. Effect

Active Publication Date: 2021-04-09
INST OF FLEXIBLE ELECTRONICS TECH OF THU ZHEJIANG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, lenses have extremely high requirements on important parameters such as wearing comfort, oxygen permeability, and water content, which are mainly completed by professional lens manufacturers, while electronic components are generally completed by electronics manufacturers. Manufacturers have extremely high requirements, and it is difficult to produce smart contact lenses with high-quality requirements
In addition, because the traditional preparation method involves the synthesis of the lens, the preparation time is longer and the preparation conditions are relatively harsh. At the same time, when the electronic components are embedded in the lens, the electronic components will affect the degree of polymerization and uniformity of the lens, and its own circuit signal Transmission is also affected

Method used

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  • Intelligent contact lens and preparation method thereof
  • Intelligent contact lens and preparation method thereof
  • Intelligent contact lens and preparation method thereof

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preparation example Construction

[0060] like Figure 5 Shown, the present invention also provides a kind of preparation method of smart contact lens, comprising:

[0061] S1, providing a lens body 10 and a flexible module 30, the flexible module 30 includes a polymer substrate 301 and a functional layer 302 disposed on the polymer substrate 301, wherein the lens body 10 and the The crack sensitive size of the polymer substrate 301 is 1 μm-1 mm;

[0062] S2, using the bonding layer 20 to fix and bond the polymer substrate 301 to the lens body 10 to obtain a smart contact lens, wherein the thickness of the bonding layer 20 is smaller than that of the lens body 10 and the lens body 10. Crack Sensitive Size of Polymer Substrate 301 .

[0063] In step S1, considering the small size of the flexible module 30, in order to facilitate coating the adhesive on the flexible module 30, it also includes placing the flexible module 30 on the first carrier 501, And the functional layer 302 is set facing the first carrier ...

Embodiment 1

[0088] Dilute 502 glue (the main component is ethyl cyanoacrylate) with ethyl acetate at a volume ratio of 502 glue: ethyl acetate = 1:17 to obtain an adhesive.

[0089] A flexible module is provided, which includes a polyimide substrate with a crack sensitive size of 200 μm and a functional layer arranged on the polyimide substrate. The functional layer includes gold wires and gold wires that are electrically connected in turn. Rectifier chips and LEDs. Then provide the first glass slide, place the flexible module on the first glass slide, and set the functional layer facing the first carrier, then soak the surface of the polymer substrate with isopropanol solution, and blow it with nitrogen Dry.

[0090] Bausch & Lomb's daily disposable contact lenses are used as the lens body, the material is hydrogel, and the crack sensitive size is 400 μm. At the same time, provide a second glass slide, then spread the lens body on the second carrier and make the first surface of the le...

Embodiment 2

[0094] The difference between embodiment 2 and embodiment 1 is: the multi-wiping stick tissue adhesive (Dermabond, main component: octyl cyanoacrylate) of Ethicon Company is adopted, and the multi-wiping stick tissue adhesive and ethyl acetate are in volume ratio Dilute to 1:16 to obtain an adhesive. The adhesive is formed on the polymer substrate by spin coating. Before spin coating, drop 800 μL of adhesive on the polymer substrate with a pipette gun. The speed is 1000 rpm, the spin coating time is 3 s, and a bonding layer with a thickness of 600 nm is obtained after curing. In the smart contact lens obtained in this embodiment, the lens body and the flexible module are firmly bonded, and at the same time, the smart contact lens maintains the original flexibility and usability of the lens body.

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Abstract

The invention relates to an intelligent contact lens which comprises a lens body, a flexible module and a bonding layer, the flexible module comprises a polymer substrate and a functional layer arranged on the polymer substrate, and the polymer substrate is fixed on the lens body through the bonding layer; and the crack sensitive size of the lens body and the crack sensitive size of the polymer substrate are both 1 [mu]m to 1 mm, and the thickness of the bonding layer is smaller than the crack sensitive sizes of the lens body and the polymer substrate. The invention also relates to a preparation method of the intelligent contact lens. The intelligent contact lens is comfortable to wear and high in safety, the preparation method is simple, preparation of the lens body is not involved, and commercial application can be achieved.

Description

technical field [0001] The invention relates to the technical field of glasses, in particular to an intelligent contact lens and a preparation method thereof. Background technique [0002] In order to facilitate the integration of the lens body and electronic components, traditional smart contact lenses usually place the electronic components in the mold of the lens body first, and then add polymethacrylate-2-hydroxyethyl methacrylate hydrogel, silicon water Gel, medical grade silica gel, polyethylene terephthalate, polydimethylsiloxane and other reaction precursors are poured into the mold of the lens body, and after curing, the smart lens with electronic components partially embedded in the lens body is obtained. contact lenses. In addition, there is also a groove structure prepared on the lens body, and then electronic components are placed in the groove, and finally the groove is encapsulated with a packaging material or a second lens body to obtain a smart contact lens...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02C7/04G02C11/00C09J4/04C09J11/00
CPCG02C7/04G02C7/047G02C7/049G02C11/10C09J4/00C09J11/00
Inventor 冯雪郑司雨陈颖
Owner INST OF FLEXIBLE ELECTRONICS TECH OF THU ZHEJIANG