ULTRAVIOLET LIGHT SHIELDING ARTICLES AND SOLAR CELL COVERS INCLUDING THE SAME
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United States of America Patent
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Issued Date -
Sep 26, 2024
app pub date -
Mar 24, 2023
filing date -
Mar 24, 2023
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Abstract
Ultraviolet light shielding articles are provided. An ultraviolet light shielding article includes a flexible substrate having a major surface and a multilayer optical film disposed on the major surface of the substrate. The multilayer optical film is comprised of at least a plurality of alternating first and second inorganic optical layers collectively reflecting and absorbing at an incident light angle of at least one of 0°, 15°, 30°, 45°, 60°, or 75°, an average of at least 50, 60, 70, 80, 90, or 95 percent of incident ultraviolet light over at least a 30-nanometer wavelength reflection bandwidth in a wavelength range from 190 nanometers (nm) to 400 nm. Solar cell covers including an ultraviolet shielding articles are also provided.
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