Luminescent solar concentrator with distributed outcoupling structures and microoptical elements
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United States of America Patent
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Jan 15, 2013
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Aug 9, 2010
filing date -
Aug 9, 2010
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Abstract
A luminescent solar concentrator including a light-guiding slab containing a luminescent material that generates light emissions in response to received sunlight, spaced-apart outcoupling structures that provide a distributed outcoupling of the light emissions through predetermined locations on one of the “broadside” (e.g., upper or lower) surfaces of the light-guiding slab, and optical elements positioned to redirect the outcoupled light emissions such that the light emissions are concentrated onto a predetermined target (e.g., a PV cell). Each optical element includes a collimating surface portion and optional returner surface.
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