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A Fully Integrated RF-Powered Contact Lens With a Single Element Display.

Authors
  • Pandey, J
  • Yu-Te Liao,
  • Lingley, Andrew
  • Mirjalili, R
  • Parviz, B
  • Otis, B
Type
Published Article
Journal
IEEE transactions on biomedical circuits and systems
Publication Date
Dec 01, 2010
Volume
4
Issue
6
Pages
454–461
Identifiers
DOI: 10.1109/TBCAS.2010.2081989
PMID: 23853383
Source
Medline
Language
English
License
Unknown

Abstract

We present progress toward a wirelessly-powered active contact lens comprised of a transparent polymer substrate, loop antenna, power harvesting IC, and micro-LED. The fully integrated radio power harvesting and power management system was fabricated in a 0.13 μm CMOS process with a total die area of 0.2 mm(2). It utilizes a small on-chip capacitor for energy storage to light up a micro-LED pixel. We have demonstrated wireless power transfer at 10 cm distance using the custom IC and on-lens antenna.

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