Abstract

Concentrators yield no increase in collected flux over bare detectors in integrating sphere applications where a large field of view is allowed but can provide meaningful increases in signal when the field of view must be limited. The correct concentrator to use is elliptical rather than parabolic. In calculations of sphere efficiency and correction factors, the detector–concentrator assembly should be treated as if it were the detector alone.

© 1985 Optical Society of America

Improved integrating-sphere throughput with a lens and nonimaging concentrator

David B. Chenault, Keith A. Snail, and Leonard M. Hanssen
Appl. Opt. 34(34) 7959-7964 (1995)

Integrating sphere designs with isotropic throughput

Keith A. Snail and Leonard M. Hanssen
Appl. Opt. 28(10) 1793-1799 (1989)

Effects of restricting the detector field of view when using integrating spheres

Leonard M. Hanssen
Appl. Opt. 28(11) 2097-2103 (1989)

Integrating sphere simulation: application to total flux scale realization

Y. Ohno
Appl. Opt. 33(13) 2637-2647 (1994)

Reduction of intensity variations on the absorbers of ideal flux concentrators

Peretz Greenman
Appl. Opt. 19(16) 2812-2821 (1980)