Infrared fluorescing optical signature agent for real time change detection
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United States of America Patent
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Aug 28, 2012
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app pub date -
Nov 20, 2006
filing date -
Nov 22, 2005
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Abstract
A method of detecting changes in a scene comprising placing a fluorescent and/or phosphorescent compound in the scene and monitoring for elimination or change in position of the phosphorescent compound. Also a liquid fluorescent and/or phosphorescent material comprising one or more compounds that are fluorescent and/or phosphorescent in infrared frequencies and substantially not fluorescent and/or phosphorescent in visible light frequencies and a carrier.
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