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Proceedings Paper

Maximum gap of ideal concentrators for cylindrical absorbers
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Paper Abstract

Known designs of reflectors for cylindrical absorbers with gaps either suffer from radiation losses or from dilution which is equivalent to losing maximum concentration. In order to avoid both kinds of losses the global shape of a micro-structured reflector must be such that the gap and the real absorber occupy equal projected angles as seen from all locations. This condition is used to tailor the global shape. We show ideal reflectors for different gap positions. There is no upper limit for the gap size imposed by physical laws.

Paper Details

Date Published: 6 October 1999
PDF: 4 pages
Proc. SPIE 3781, Nonimaging Optics: Maximum Efficiency Light Transfer V, (6 October 1999); doi: 10.1117/12.368243
Show Author Affiliations
Harald Ries, Optics and Energy Consulting (Germany)
Julius A. Muschaweck, Optics and Energy Consulting (Germany)


Published in SPIE Proceedings Vol. 3781:
Nonimaging Optics: Maximum Efficiency Light Transfer V
Roland Winston, Editor(s)

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