Core 3D printing process technology for smart contact lenses that can implement augmented reality (AR)-based navigation has been developed by Dr. Seol Seung-Kwon's Smart 3D Printing Research Team at the Korea Electrotechnology Research Institute (KERI) and Professor Lim-Doo Jeong's team at Ulsan Nat
A new smart contact lens has been developed that can provide navigation information through augmented reality. The lens is attached to the human eye like a normal contact lens and uses a 3D printing process for its core technology.
Crystallization of FeFe6 occurs on the substrate in a region confined by the meniscus, forming the uniform pattern. FeFe6 pattern is converted to the PB 6]3) via thermal reduction. Credit: Korea Electrotechnology Research Institute Through the precise movement of the nozzle, the crystallization of Prussian blue is continuously performed, thereby forming micro-patterns. Patterns can be formed not only on flat surfaces but also on curved surfaces. The research team’s micro-pattern technology is very fine that can be applied to smart contact lens displays for AR, and the color is continuous and uniform.
Cover image of Advanced Science Meniscus-guided micro-printing of Prussian Blue is realized by the localized crystallization of FeFe6 on the substrate confined by the ink meniscus and thermal reduction of the crystallized FeFe6. This strategy is capable of being used as an electrochromic display to give real-time directions on an augmented reality smart contact lens device.
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