Variable transmittance optical filter and uses thereof

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United States of America Patent

PATENT NO 9864252
APP PUB NO 20160077400A1
SERIAL NO

14942119

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Abstract

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Variable transmittance optical filters capable of transitioning from a light state to a dark state on exposure to UV radiation and from a dark state to a light state with application of an electric voltage are provided. The optical filters comprise a switching material that comprises one or more chromophores that have electrochromic and photochromic properties.

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Patent Owner(s)

Patent OwnerAddress
SOLUTIA CANADA INC700 WEST GEORGIA STREET VANCOUVER V7Y 1B3

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Branda, Neil R North Vancouver, CA 12 359
Lam, Duhane Vancouver, CA 60 1147

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