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Proceedings Paper

High performance Fresnel-based photovoltaic concentrator
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Paper Abstract

It is essential to obtain high values of tolerance for CPV concentrators because manufacturing process always implies some accuracy errors. This paper presents the Fresnel Köhler concentrator (FK), an advanced optical concentrator comprising a Fresnel lens as a primary element and a refractive secondary element, both presenting free-form surfaces. This optic produces both, the desired light concentration and high tolerance (i.e. high acceptance angle), as well as an excellent light homogenization by Köhler integration simultaneously. A comparison between the FK and other current conventional Fresnel-based CPV concentrators is also presented, being our concentrator superior to its competitors in terms of tolerances, irradiance homogeneity and manufacturability.

Paper Details

Date Published: 18 August 2010
PDF: 8 pages
Proc. SPIE 7785, Nonimaging Optics: Efficient Design for Illumination and Solar Concentration VII, 778504 (18 August 2010); doi: 10.1117/12.860670
Show Author Affiliations
Pablo Zamora, Univ. Politécnica de Madrid (Spain)
Pablo Benítez, Univ. Politécnica de Madrid (Spain)
Light Prescriptions Innovators, LLC (United States)
Juan C. Miñano, Univ. Politécnica de Madrid (Spain)
Light Prescriptions Innovators, LLC (United States)
Rubén Mohedano, Light Prescriptions Innovators, LLC (United States)
Aleksandra Cvetkovic, Light Prescriptions Innovators, LLC (United States)
Marina Buljan, Univ. Politécnica de Madrid (Spain)
Julio Chaves, Light Prescriptions Innovators, LLC (United States)


Published in SPIE Proceedings Vol. 7785:
Nonimaging Optics: Efficient Design for Illumination and Solar Concentration VII
Roland Winston; Jeffrey M. Gordon, Editor(s)

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