Share Email Print
cover

Proceedings Paper

Fluorescence errors in integrating sphere measurements of remote phosphor type LED light sources
Author(s): A. Keppens; Y. Zong; V. B. Podobedov; M. E. Nadal; P. Hanselaer; Y. Ohno
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

The relative spectral radiant flux error caused by phosphor fluorescence during integrating sphere measurements is investigated both theoretically and experimentally. Integrating sphere and goniophotometer measurements are compared and used for model validation, while a case study provides additional clarification. Criteria for reducing fluorescence errors to a degree of negligibility as well as a fluorescence error correction method based on simple matrix algebra are presented. Only remote phosphor type LED light sources are studied because of their large phosphor surfaces and high application potential in general lighting.

Paper Details

Date Published: 27 May 2011
PDF: 11 pages
Proc. SPIE 8082, Optical Measurement Systems for Industrial Inspection VII, 808241 (27 May 2011); doi: 10.1117/12.889382
Show Author Affiliations
A. Keppens, Catholic Univ. College Gent (Belgium)
Y. Zong, National Institute of Standards and Technology (United States)
V. B. Podobedov, National Institute of Standards and Technology (United States)
M. E. Nadal, National Institute of Standards and Technology (United States)
P. Hanselaer, Catholic Univ. College Gent (Belgium)
Y. Ohno, National Institute of Standards and Technology (United States)


Published in SPIE Proceedings Vol. 8082:
Optical Measurement Systems for Industrial Inspection VII
Peter H. Lehmann; Wolfgang Osten; Kay Gastinger, Editor(s)

© SPIE. Terms of Use
Back to Top