Transparent diffusers for lightguides and luminaires
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United States of America Patent
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Jan 30, 2018
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Dec 8, 2014
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Dec 12, 2013
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Abstract
A light-transmitting structure comprising a substrate having a plurality of regions where at least two of the plurality of regions have different refractive indices, an optical path length of light transmitted from a first light source through the plurality of regions is substantially constant, and where light transmitted from a second light source into the substrate is scattered by at least one of the plurality of regions.
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