ULTRA VIOLET ENHANCED RESPONSE PHOTOCHROMIC COMPOSITION AND DEVICE
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United States of America Patent
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Issued Date -
Aug 7, 2014
app pub date -
Feb 5, 2013
filing date -
Feb 5, 2013
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Abandoned
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Abstract
The present invention relates to an optical power-limiting composition for limiting optical power transmission for an entire solar UV spectrum. The composition includes photochromic dye molecules and UV fluorescent nanoparticles in a matrix material. The composition is configured to absorb wavelengths in the entire solar UV spectrum, including wavelengths of 300-340 nm, thereby enhancing photochromic responsiveness of the composition to solar light. The composition includes a first side that receives impinging light and a second side opposed to the first side.
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