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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 46, Iss. 15 — May. 20, 2007
  • pp: 2851–2858

Uncertainty evaluation for the spectroradiometric measurement of the averaged light-emitting diode intensity

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


Applied Optics, Vol. 46, Issue 15, pp. 2851-2858 (2007)
http://dx.doi.org/10.1364/AO.46.002851


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Abstract

An uncertainty evaluation is presented for the spectroradiometric measurement of the averaged LED intensity (ALI), which is a standardized photometric quantity of LEDs introduced by the Commission Internationale de l'Éclairage. Using a spectral irradiance standard lamp as a calibration source for the spectroradiometer, 12 uncertainty components are sorted out and their propagation formulated with correlations between the components taken into account. The procedure of uncertainty evaluation is demonstrated for four LED samples of different colors; red, green, blue, and white. The relative uncertainties of the ALI of the test samples are determined to be in a range from 4.1% to 5.5% ( k = 2 ) , but most of their dominant uncertainty components turn out to be systematic and correlated. In conclusion, correlations between the uncertainty components critically affect the overall uncertainty of the LED measurement using a spectroradiometer.

© 2007 Optical Society of America

OCIS Codes
(120.4800) Instrumentation, measurement, and metrology : Optical standards and testing
(120.5240) Instrumentation, measurement, and metrology : Photometry
(120.6200) Instrumentation, measurement, and metrology : Spectrometers and spectroscopic instrumentation

ToC Category:
Instrumentation, Measurement, and Metrology

History
Original Manuscript: November 6, 2006
Manuscript Accepted: November 21, 2006
Published: May 1, 2007

Citation
Seongchong Park, Dong-Hoon Lee, Yong-Wan Kim, and Seung-Nam Park, "Uncertainty evaluation for the spectroradiometric measurement of the averaged light-emitting diode intensity," Appl. Opt. 46, 2851-2858 (2007)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-46-15-2851


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References

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