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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 15, Iss. 11 — Nov. 1, 1976
  • pp: 2880–2883

Ideal concentrators for finite sources and restricted exit angles

Ari Rabl and Roland Winston  »View Author Affiliations


Applied Optics, Vol. 15, Issue 11, pp. 2880-2883 (1976)
http://dx.doi.org/10.1364/AO.15.002880


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Abstract

Design procedures for ideal radiation concentrators are described which are applicable to finite sources and/or restricted exit angles. Finite sources are relevant for second stage concentrators which collect and further concentrate radiation from a primary focusing element (mirror or lens) in a manner similar to the field optic element in a telescope. Restricting the exit angle is useful for improving the optical efficiency of solar collectors by eliminating grazing angles of incidence of the absorber. It also serves to extend the useful range of angular acceptance values available from solid dielectric concentrators that function by total internal reflection. Concentrators of this type can be used to construct highly efficient radiation traps (spectrally selective filters).

© 1976 Optical Society of America

History
Original Manuscript: March 4, 1976
Published: November 1, 1976

Citation
Ari Rabl and Roland Winston, "Ideal concentrators for finite sources and restricted exit angles," Appl. Opt. 15, 2880-2883 (1976)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-15-11-2880

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