Method of manufacturing a contact lens sensor and contact lens sensor

CN117774361BActive Publication Date: 2026-05-29INST OF FLEXIBLE ELECTRONICS TECH OF THU ZHEJIANG
2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
INST OF FLEXIBLE ELECTRONICS TECH OF THU ZHEJIANG
Filing Date
2022-08-22
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing technologies for fabricating contact lens sensors are difficult to implement, inefficient, and require improved sensor sensitivity. In particular, the method of injecting liquid alloy into microchannels is extremely inefficient when constructing large-area capacitor plates and inductor coils, and the copper wire welding operation is difficult and has a low success rate.

Method used

By forming rough and smooth regions on a thin film layer, and utilizing the difference in adhesion of liquid alloys, liquid alloys are selectively adhered to form inner and outer liquid alloy layers. Inner and outer capacitor structures and inductor coils are constructed. A contact lens sensor with a CLC or CLCL circuit structure is fabricated by using a multilayer thin film layer stacking method.

Benefits of technology

This technology enables the efficient fabrication of contact lens sensors, improves sensor sensitivity and signal quality, facilitates mass production, and significantly enhances the sensitivity of intraocular pressure sensing.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN117774361B_ABST
    Figure CN117774361B_ABST
Patent Text Reader

Abstract

The application provides a contact lens sensor preparation method and a contact lens sensor. The preparation method comprises the following steps: forming an inner thin film layer by inverse molding, and forming a first rough area and a first smooth area on the upper surface of the inner thin film layer; placing the inner thin film layer in a liquid alloy, and adhering the liquid alloy to the first smooth area to form a liquid alloy layer, so as to obtain a two-layer structure; forming an intermediate thin film layer on the upper surface of the two-layer structure by inverse molding of a thin film material, and forming a second rough area and a second smooth area on the upper surface of the intermediate thin film layer, so as to obtain a three-layer structure; placing the three-layer structure in a liquid alloy to form an outer liquid alloy layer, so as to obtain a four-layer structure; inversely molding the upper surface of the four-layer structure to form an outer thin film layer, so as to obtain a five-layer structure; and demolding the five-layer structure to obtain the contact lens sensor. The preparation method has the process advantages of simple principle, few processes, high success rate, high efficiency, easy integration with a beauty lens production line and mass production.
Need to check novelty before this filing date? Find Prior Art