Self-sanitizing waveguiding surfaces

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United States of America Patent

PATENT NO 11793897
APP PUB NO 20210023249A1
SERIAL NO

17036474

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Abstract

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A self-sanitizing surface structure configured to selectively refract light, a method of fabricating a self-sanitizing surface configured to selectively refract light, and a method of decontaminating a surface using selectively refracted light. A waveguide including a support layer below a propagating layer is positioned over a substrate as a self-sanitizing layer. In the absence of a contaminant or residue on the waveguide, UV light injected into the propagating layer is constrained within the propagating layer due to total internal reflection. When a residue is present on the self-sanitizing surface structure, light may be selectively refracted at or near the interface with the residue along the side of the waveguide to destroy the residue. The self-sanitizing surface structure may be configured to refract a suitable amount of UV light in response to a particular type of residue or application.

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Patent Owner(s)

Patent OwnerAddress
HRL LABORATORIES LLC3011 MALIBU CANYON ROAD MALIBU CA 90265

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cui, Shanying Calabasas, US 35 49
Geary, Kevin Santa Monica, US 25 748
Gross, Adam F Santa Monica, US 149 818

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