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Proceedings Paper

Solid state lighting and photobiological safety
Author(s): Y. G. Soskind; J. A. Campin; M. D. Hopler; G. H. Pettit
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Paper Abstract

Recent advancements in Light-Emitting Diode (LED) technology have led to significant proliferation of solid-state lighting in our every-day life. White light and monochrome LED-based solid-state sources provide a small size, lower power consumption, and longer life alternative to several types of traditional light sources, such as incandescent lights. However, the spectral characteristics of LEDs are significantly different from the spectra of self-luminous objects that human eyes are adapted to through evolution and, therefore, may pose a real threat of photic-induced eye injury. In this paper the spectral characteristics of individual sources are considered from a photobiological safety perspective, and are used to estimate the retinal hazard potential of LEDs relative to that for daylight and blackbody radiators. The presented LED source retinal hazard exposure ranking considerations could be accounted for during illumination system design to minimize photic-induced eye injury risk. The importance of the material presented herein can not be underestimated since high power LED sources are found in a variety of high volume lighting applications and systems including automotive lamps, signal lighting, flash lights and other illumination devices.

Paper Details

Date Published: 5 March 2007
PDF: 9 pages
Proc. SPIE 6426, Ophthalmic Technologies XVII, 64262C (5 March 2007); doi: 10.1117/12.697029
Show Author Affiliations
Y. G. Soskind, Alcon Research (United States)
J. A. Campin, Alcon Research (United States)
M. D. Hopler, Alcon Research (United States)
G. H. Pettit, Alcon Research (United States)


Published in SPIE Proceedings Vol. 6426:
Ophthalmic Technologies XVII
Bruce E. Stuck; Fabrice Manns; Per G. Söderberg; Michael Belkin M.D.; Arthur Ho, Editor(s)

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