Employing optical signals for power and/or communication
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United States of America Patent
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Dec 22, 2020
Grant Date -
N/A
app pub date -
Mar 7, 2019
filing date -
Jul 26, 2012
priority date (Note) -
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Abstract
Apparatus, systems and methods employing contact lens sensors are provided. In some aspects, a contact lens includes a substrate that forms at least a portion of the body of the contact lens; an optical communication device disposed on or within the substrate; and a photodetector disposed on or within the substrate, wherein the photodetector harvests light emitted from a device and generates power from the harvested light. In some aspects, an apparatus comprises a tag having a circuit including: an optical communication device; and a photodetector that harvests light received and generates power from the harvested light. The tag can be disposed on or within a contact lens in various aspects.
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