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Opt Express. 2012 Nov 5;20(23):A1005-10.

Design of an efficient Fresnel-type lens utilizing double total internal reflection for solar energy collection.

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1
AIDO, Instituto Tecnológico de Óptica, Color e Imagen, C/ Nicolás Copérnico, 7-13, Parque Tecnológico, 46980, Paterna, Valencia, Spain. iwallhead@aido.es

Abstract

A novel of Fresnel-type lens for use as a solar collector has been designed which utilizes double total internal reflection (D-TIR) to optimize collection efficiency for high numerical aperture lenses (in the region of 0.3 to 0.6 NA). Results show that, depending on the numerical aperture and the size of the receiver, a collection efficiency theoretical improvement on the order of 20% can be expected with this new design compared with that of a conventional Fresnel lens.

PMID:
23326849
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