Abstract

In this paper we are concerned with symmetrical bidimensional concentrators, and we prove that for a given source’s angular extension a curve exists that divides the plane into two regions. No ideal concentrator can be found with its edges on the outer region and no Lambertian concentrator can be found with its edges on the inner region. A consequence of this theorem is that a concentrator is forced to cast some of the incident energy outside the collector to ensure its obtaining the maximum power.

© 1982 Optical Society of America

Finite Lambertian source analysis of concentrators: application to solar reflectors

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Appl. Opt. 20(24) 4193-4200 (1981)

Comparison of Fresnel lenses and parabolic mirrors as solar energy concentrators

E. Lorenzo and A. Luque
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Fresnel lens analysis for solar energy applications

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