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Optical Engineering

Light pulse generator for high speed photography using semiconductor devices as a light source
Author(s): Boleslaw Stasicki; Winfried J. Hiller; G. E. A. Meier
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Paper Abstract

A high speed pulsed light generator system has been developed for the optical analysis and imaging of fast processes in fluid dynamics. As a light source, one or more high power LEDs are used. The maximum light power generated by one diode is 1 W. The pulse repetition rate is up to 2 MHz and the pulse width can be adjusted in the range 50 ns to 10 µs. The light emitted from the diodes has a wavelength of 660 nm. Due to its pronounced coherence, it is especially suited for the observation of light-phase-shifting objects by interferometric methods. Examples of the application of the generator are presented.

Paper Details

Date Published: 1 July 1990
PDF: 7 pages
Opt. Eng. 29(7) doi: 10.1117/12.55647
Published in: Optical Engineering Volume 29, Issue 7
Show Author Affiliations
Boleslaw Stasicki
Winfried J. Hiller, Max Planck Institut fuer Stroemungsforschung (Germany)
G. E. A. Meier, Max Planck Institut fuer Stroemungsforschung (Germany)

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