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Proceedings Paper

Nested aplanatic optics
Author(s): Alex Goldstein; Daniel Feuermann; Gary D. Conley; Jeffrey M. Gordon
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Paper Abstract

Dual-mirror aplanatic optics - recently developed for concentrator photovoltaics - can offer efficient, ultra-compact, high-irradiance solar concentration. However, intrinsic limitations site the focus inside the concentrator and hence engender a dielectric terminal concentrator to deliver the concentrated radiation to the photovoltaic cell outside the optic, with the associated requirement of an optical bond to the cell. Can a modification in the design strategy place the focus outside the optic - and hence obviate the need for a terminal concentrator and optical bond - without compromising compactness, low shading losses, or even the practical virtue of the primary and secondary mirrors being coplanar toward easing optical component alignment? We show how nested dual-mirror aplanats can satisfy all these goals, supported by raytrace performance evaluations.

Paper Details

Date Published: 21 September 2011
PDF: 5 pages
Proc. SPIE 8124, Nonimaging Optics: Efficient Design for Illumination and Solar Concentration VIII, 81240L (21 September 2011); doi: 10.1117/12.891906
Show Author Affiliations
Alex Goldstein, Ben-Gurion Univ. of the Negev (Israel)
Daniel Feuermann, Ben-Gurion Univ. of the Negev (Israel)
Gary D. Conley, H2Go, Inc. (United States)
Jeffrey M. Gordon, Ben-Gurion Univ. of the Negev (Israel)


Published in SPIE Proceedings Vol. 8124:
Nonimaging Optics: Efficient Design for Illumination and Solar Concentration VIII
Roland Winston; Jeffrey M. Gordon, Editor(s)

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