Covert Cholesteric Liquid Crystal Reflectors
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United States of America Patent
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Issued Date -
Mar 27, 2025
app pub date -
Dec 21, 2022
filing date -
Dec 21, 2022
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Abstract
An article having a decor provided by one or more exposed layers is disclosed. The article comprises a tag integrated in the one or more exposed layers yet camouflaged in the decor to the naked human eye, the tag comprising an arrangement of spherical cholesteric liquid crystal reflectors. In addition, methods for providing an authenticable article and for authenticating an article as well as a communication method are disclosed.
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