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Energy Express

  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 6, Iss. 8 — Aug. 26, 2011

Four-color laser white illuminant demonstrating high color-rendering quality

A. Neumann, J. J. Wierer, Jr., W. Davis, Y. Ohno, S. R. J. Brueck, and J.Y. Tsao  »View Author Affiliations

Optics Express, Vol. 19, Issue S4, pp. A982-A990 (2011)

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Solid-state lighting is currently based on light-emitting diodes (LEDs) and phosphors. Solid-state lighting based on lasers would offer significant advantages including high potential efficiencies at high current densities. Light emitted from lasers, however, has a much narrower spectral linewidth than light emitted from LEDs or phosphors. Therefore it is a common belief that white light produced by a set of lasers of different colors would not be of high enough quality for general illumination. We tested this belief experimentally, and found the opposite to be true. This result paves the way for the use of lasers in solid-state lighting.

© 2011 OSA

OCIS Codes
(140.0140) Lasers and laser optics : Lasers and laser optics
(230.3670) Optical devices : Light-emitting diodes
(250.0250) Optoelectronics : Optoelectronics
(330.0330) Vision, color, and visual optics : Vision, color, and visual optics
(330.1715) Vision, color, and visual optics : Color, rendering and metamerism
(250.5960) Optoelectronics : Semiconductor lasers

ToC Category:
Light-Emitting Diodes

Original Manuscript: May 19, 2011
Revised Manuscript: June 26, 2011
Manuscript Accepted: June 27, 2011
Published: July 1, 2011

Virtual Issues
Vol. 6, Iss. 8 Virtual Journal for Biomedical Optics
Optics in LEDS for Lighting (2011) Optics Express

A. Neumann, J. J. Wierer, W. Davis, Y. Ohno, S. R. J. Brueck, and J.Y. Tsao, "Four-color laser white illuminant demonstrating high color-rendering quality," Opt. Express 19, A982-A990 (2011)

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