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Proceedings Paper

Light Emitting Diodes As Short Duration Light Sources
Author(s): I. M. Hutchings; D. R. Andrews
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Paper Abstract

The use of GaAsP light emitting diodes as pulsed light sources for high-speed photography is discussed. Two applications are des-cribed: single-shot photography with pulses ca. 1 p,s long, and stroboscopic visualization of ultrasound with 50 ns flashes. The luminous efficiency and current capacity of the LEDs was considerably enhanced by cooling them to 77 K in liquid nitrogen.

Paper Details

Date Published: 27 July 1979
PDF: 4 pages
Proc. SPIE 0189, 13th Intl Congress on High Speed Photography and Photonics, (27 July 1979); doi: 10.1117/12.957553
Show Author Affiliations
I. M. Hutchings, University of Cambridge (England)
D. R. Andrews, University of Cambridge (England)


Published in SPIE Proceedings Vol. 0189:
13th Intl Congress on High Speed Photography and Photonics
Shin-Ichi Hyodo, Editor(s)

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