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Proceedings Paper

Dynamic Spatial Filter For Optical Signal Processing Using A Liquid Crystal Light Valve
Author(s): William R. Mallory; H. Lee Task
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Paper Abstract

A device is described which is capable of doing dynamic spatial filtering. The filter, which can be changed at TV frame rates, utilizes a liquid crystal light valve (LCLV) in a controlled-reflectivity mode. A filter pattern can be generated by a CRT or by other optical methods and imaged onto the LCLV. The LCLV is placed in the Fourier plane of an optical transform system. The dynamic spatial filter is described in detail, and current experimental results are given.

Paper Details

Date Published: 30 July 1982
PDF: 6 pages
Proc. SPIE 0298, Real-Time Signal Processing IV, (30 July 1982); doi: 10.1117/12.932519
Show Author Affiliations
William R. Mallory, Systems Research Laboratories, Inc. (United States)
H. Lee Task, Air Force Aerospace Medical Research Laboratory (United States)


Published in SPIE Proceedings Vol. 0298:
Real-Time Signal Processing IV
Tien F. Tao, Editor(s)

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