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Proceedings Paper

Tunable light source for fiber optic lighting applications
Author(s): Nadarajah Narendran; Andrew Bierman; Mark J. Finney; Ian K. Edwards
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Paper Abstract

This paper examines the possibility of tuning the lamp spectrum to compensate for color distortions in fiber optic lighting systems. Because most optical fibers have strong absorption in the blue and red wavelength regions, white light entering and propagating down an optical fiber suffers varied amounts of attenuation as a function of wavelength. As a result, the light exiting the optical fiber has a greenish tint that the lighting design community considers undesirable in interior lighting applications. HID lamps are commonly used for the light source in this industry. Certain classes of HID lamps tend to shift in color when their operating position or the input voltage to the lamp is changed. An experimental study is being conducted to characterize the color shift properties of a small HID lamp as a function of tilt and input voltage. The study also examines the possibility of exploiting this color shift to compensate for the color distortions caused by optical fibers. The details of the experiment and the results are presented in this manuscript.

Paper Details

Date Published: 26 September 1997
PDF: 12 pages
Proc. SPIE 3140, Photometric Engineering of Sources and Systems, (26 September 1997); doi: 10.1117/12.284090
Show Author Affiliations
Nadarajah Narendran, Rensselaer Polytechnic Institute (United States)
Andrew Bierman, Rensselaer Polytechnic Institute (United States)
Mark J. Finney, Welch Allyn (United States)
Ian K. Edwards, Welch Allyn (United States)

Published in SPIE Proceedings Vol. 3140:
Photometric Engineering of Sources and Systems
Angelo V. Arecchi, Editor(s)

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