Authors
Andres Vasquez Quintero, Ritsuko Arai, Yoshiko Yamazaki, Takao Sato, Herbert De Smet
Publication date
2020/12
Journal
Advanced Materials Technologies
Volume
5
Issue
12
Pages
2000702
Description
Nowadays, smart contact lenses (SCLs) display interesting features for healthcare monitoring; however, their comfort and practical usability strongly depend on the outermost material in contact with the eye. In this publication, the embedding of a custom‐made and thermoformed Near‐Field Communication based circuit in a conventional soft CL is presented. The circuit is composed of gold tracks on polyimide between thermoplastic polyurethane layers (insert), while the lens is based on industry standard double‐molding process of poly(2‐hydroxyethyl methacrylate) with proven compatibility with corneal tissue. The lens shows stable geometrical parameters (bevel landing area) thus enabling a practical implementation. Finite element method models are used to optimize the thermoforming process in order to provide a stable and desired curvature of the insert before the embedding process. While the insert is …
Total citations
202120222023202411074
Scholar articles
A Vasquez Quintero, R Arai, Y Yamazaki, T Sato… - Advanced Materials Technologies, 2020