Nonimaging compound parabolic concentrator-type reflectors with variableb extreme direction

J. M. Gordon, A. Rabl

Research output: Contribution to journalArticlepeer-review

20 Scopus citations


The properties of nonimaging compound parabolic concentrator (CPC)-type devices are examined in which the extreme direction is not constant but rather is a variable that can change along the reflector. One can then retain the maximal concentration or radiative efficiency of the CPC while the flux map on the absorber or target is modified, depending on whether the device is used for optical concentration or for lighting. Two general classes of reflector are derived, and all the nonimaging devices developed to date are shown to be special cases of the general solution. These two classes are the nonimaging analog of converging and diverging devices of imaging optics.

Original languageEnglish
Pages (from-to)7332-7338
Number of pages7
JournalApplied Optics
Issue number34
StatePublished - 1 Jan 1992


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