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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 50, Iss. 9 — Mar. 20, 2011
  • pp: C95–C99

Fabrication of a tunable daylight simulator

Mei-Ling Lo, Tsung-Hsun Yang, and Cheng-Chung Lee  »View Author Affiliations


Applied Optics, Vol. 50, Issue 9, pp. C95-C99 (2011)
http://dx.doi.org/10.1364/AO.50.000C95


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Abstract

Recently, solid state lighting has begun to play an important role in colorimetric instrumentation. LEDs are being evaluated as one of the possible standard light sources for such devices. In this study, an innovative tunable daylight simulator is developed, which mainly consists of only a few LEDs and a specially designed optical thin-film filter with a fixed transmission spectrum. This simulator is able to simulate daylight spectra with correlated color temperatures ranging from 4000 to 10 , 000 K with very good color rendition indices ( CRI 97 ). We have achieved the color difference 0.01, which is better than 0.015, a maximum tolerance as defined by the International Commission on Illumination of the color differences in 1976 u v color space between standard daylight and a simulator.

© 2011 Optical Society of America

OCIS Codes
(310.0310) Thin films : Thin films
(330.0330) Vision, color, and visual optics : Vision, color, and visual optics

History
Original Manuscript: July 30, 2010
Revised Manuscript: October 13, 2010
Manuscript Accepted: October 13, 2010
Published: November 8, 2010

Virtual Issues
Vol. 6, Iss. 4 Virtual Journal for Biomedical Optics

Citation
Mei-Ling Lo, Tsung-Hsun Yang, and Cheng-Chung Lee, "Fabrication of a tunable daylight simulator," Appl. Opt. 50, C95-C99 (2011)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-50-9-C95

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