Devices for internal daylighting with IR rejection
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United States of America Patent
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Jul 11, 2023
Grant Date -
Aug 11, 2022
app pub date -
Jan 27, 2022
filing date -
Apr 29, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
A device for day lighting the interior of structure deploys reflective louvers that are spaced apart in stacks. The louvers include a coating or multilayer structure that is operative to reflect visible light but transmit IR light through the louver. The louvers also have a retro-reflective structure to return the IR light by reverse reflection in the opposite direction of the incident light, which is back toward the sun. The interior of the structure is more uniformly illuminated with visible light while the louvers and interior are not heated by IR light or radiation from the sun.
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