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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 36, Iss. 34 — Dec. 1, 1997
  • pp: 8909–8918

Development of a detector-based absolute spectral irradiance scale in the 380–900-nm spectral range

Petri Kärhä, Pasi Toivanen, Farshid Manoochehri, and Erkki Ikonen  »View Author Affiliations


Applied Optics, Vol. 36, Issue 34, pp. 8909-8918 (1997)
http://dx.doi.org/10.1364/AO.36.008909


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Abstract

A detector-based absolute scale for spectral irradiance in the 380–900-nm wavelength region has been developed and tested at the Helsinki University of Technology (HUT). Derivation of the scale and its use for photometric and colorimetric measurements are described. A thorough characterization of a filter radiometer, constructed from a reflection trap detector, a precision aperture, and a set of seven temperature-controlled bandpass filters, is presented. A detailed uncertainty analysis of the scale indicates a relative standard uncertainty of approximately 0.2% throughout most of the wavelength region. The standard uncertainties obtained in measurements of correlated color temperature and luminous intensity of three Osram Wi41/G tungsten–halogen lamps are 2 K and 0.3%, respectively. The spectral irradiance scale is compared with the HUT luminous intensity scale. The agreement of the results at the 0.1% level is well within the combined standard uncertainty of the two scales.

© 1997 Optical Society of America

History
Original Manuscript: April 7, 1997
Revised Manuscript: July 14, 1997
Published: December 1, 1997

Citation
Petri Kärhä, Pasi Toivanen, Farshid Manoochehri, and Erkki Ikonen, "Development of a detector-based absolute spectral irradiance scale in the 380–900-nm spectral range," Appl. Opt. 36, 8909-8918 (1997)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-36-34-8909

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