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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 50, Iss. 15 — May. 20, 2011
  • pp: 2220–2227

Six-port integrating sphere photometer with uniform spatial response

Seongchong Park, Dong-Hoon Lee, and Seung-Nam Park  »View Author Affiliations

Applied Optics, Vol. 50, Issue 15, pp. 2220-2227 (2011)

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We propose an integrating sphere photometer with six detection ports for total luminous flux measurement, which significantly improves the uniformity of spatial response compared to the conventional single-port detection design. Numerical simulations based on the geometric radiative transfer equation show that a spatial response distribution function of the new design is uniform within 2% with respect to all spatial directions. The related spatial mismatch error is calculated to be less than 0.3% for all the realistic cases of angular intensity distribution of a test lamp. As a result, the new design practically eliminates the spatial mismatch error of an integrating sphere photometer, so that a high-accuracy measurement can be achieved without the complicated spatial mismatch correction procedure.

© 2011 Optical Society of America

OCIS Codes
(120.3150) Instrumentation, measurement, and metrology : Integrating spheres
(120.5240) Instrumentation, measurement, and metrology : Photometry

ToC Category:
Instrumentation, Measurement, and Metrology

Original Manuscript: January 19, 2011
Manuscript Accepted: March 14, 2011
Published: May 16, 2011

Seongchong Park, Dong-Hoon Lee, and Seung-Nam Park, "Six-port integrating sphere photometer with uniform spatial response," Appl. Opt. 50, 2220-2227 (2011)

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