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Proceedings Paper

Diode light sources for retinal scanning displays
Author(s): Dan C. Bertolet; Nima Bertram; John R. Lewis; Abraham A. Gross
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Paper Abstract

We present the results of an ongoing investigation into the use of directly modulated light emitting diodes and laser diodes as light sources for a retinal scanning display. Devices studied include commercially available single-mode 635 nm laser diodes, custom fabricated red edge-emitting LEDs, custom fabricated gallium nitride-based green and blue edge-emitting LEDs, and commercial LEDs. The diodes were characterized in both DC (light vs. current/voltage), and high frequency (approximately 1 ns rise/fall pulse) regimes, and measured for luminance using a CCD camera in conjunction with a variable image aperture, variable NA light collection system. Results show that edge-emitting LEDs and laser diodes are each suitable for a particular range of display requirements.

Paper Details

Date Published: 14 April 1999
PDF: 9 pages
Proc. SPIE 3621, Light-Emitting Diodes: Research, Manufacturing, and Applications III, (14 April 1999); doi: 10.1117/12.344485
Show Author Affiliations
Dan C. Bertolet, Microvision, Inc. (United States)
Nima Bertram, Microvision, Inc. (United States)
John R. Lewis, Microvision, Inc. (United States)
Abraham A. Gross, Microvision, Inc. (Israel)

Published in SPIE Proceedings Vol. 3621:
Light-Emitting Diodes: Research, Manufacturing, and Applications III
E. Fred Schubert; Ian T. Ferguson; H. Walter Yao, Editor(s)

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