Toward an active contact lens: Integration of a wireless power harvesting IC

Jagdish Pandey*, Yu-Te Liao, Andrew Lingley, Babak Parviz, Brian Otis

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

9 Scopus citations

Abstract

The overarching goal of an active contact lens is to integrate sensing or display functionality onto a wearable device, enabling on-lens medical monitoring and heads-up displays. We present progress toward a wirelessly-powered active contact lens comprising a transparent polymer substrate, loop antenna, power harvesting IC, and a custom micro-LED. The fully integrated radio power harvesting and a power management system was fabricated in a 0.13 ìm CMOS process and utilizes a small on-chip capacitor as an energy storage element to light up a micro-LED pixel. We have demonstrated wireless power transfer and LED intensity control using the custom IC and on-lens antenna.

Original languageEnglish
Title of host publication2009 IEEE Biomedical Circuits and Systems Conference, BioCAS 2009
Pages125-128
Number of pages4
DOIs
StatePublished - 1 Dec 2009
Event2009 IEEE Biomedical Circuits and Systems Conference, BioCAS 2009 - Beijing, China
Duration: 26 Nov 200928 Nov 2009

Publication series

Name2009 IEEE Biomedical Circuits and Systems Conference, BioCAS 2009

Conference

Conference2009 IEEE Biomedical Circuits and Systems Conference, BioCAS 2009
CountryChina
CityBeijing
Period26/11/0928/11/09

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