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Journal of Display Technology

Journal of Display Technology

| A JOINT IEEE/OSA PUBLICATION

  • Vol. 7, Iss. 7 — Jul. 1, 2011
  • pp: 402–406

Laser Wavelength Choices for Pico-Projector Applications

Edward Buckley

Journal of Display Technology, Vol. 7, Issue 7, pp. 402-406 (2011)


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Abstract

The rapid progress in laser light source development, particularly in the gallium-nitride material system, means that a wide range of wavelengths are now available for pico-projection applications intended to deliver 20 lm or less. In principle, this affords designers of pico-projection systems great flexibility in choosing laser wavelengths to optimize specific performance metrics. With the proliferation of laser-based pico-projectors, however, it has become clear that current laser safety regulations and their wavelength-dependent classification criteria play a fundamental role in determining the brightness roadmaps of scanned-beam and liquid crystal on silicon (LCoS) pico-projection systems. In this paper, it is shown that it is possible to choose laser wavelengths to simultaneously maximize eye-safe luminous flux and color gamut, but that the resultant values are significantly different for Class 2 and Class 1 eye-safe projection systems.

© 2011 IEEE

Citation
Edward Buckley, "Laser Wavelength Choices for Pico-Projector Applications," J. Display Technol. 7, 402-406 (2011)
http://www.opticsinfobase.org/jdt/abstract.cfm?URI=jdt-7-7-402

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