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Proceedings Paper

Optical Computing With Variable Grating Mode Liquid Crystal Devices
Author(s): B. H. Soffer; D Boswell; A. M. Lackner; P. Chavel; A. A. Sawchuk,; T C. Strand; A. R. Tanguay Jr.
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Paper Abstract

A liquid crystal device that performs a two-dimensional intensity-to-spatial frequency conversion has been developed for use as an optical transducer. When such a device is used as the input transducer in an optical filtering arrangement, image intensity levels can be easily manipulated via Fourier plane filters. This variable input intensity-output intensity transfer function has numerous potential applications in image processing. Implementation of a variable level slice operation is discussed and experimental results presented. The VGM LCLV device is also particularly well adapted to performing binary logic operations on 2-D images. This application is discussed, and results demonstrating the implementation of common logic operations are presented.

Paper Details

Date Published: 22 August 1980
PDF: 9 pages
Proc. SPIE 0232, 1980 Intl Optical Computing Conf II, (22 August 1980); doi: 10.1117/12.958881
Show Author Affiliations
B. H. Soffer, Hughes Research Laboratories (United States)
D Boswell, Hughes Research Laboratories (United States)
A. M. Lackner, Hughes Research Laboratories (United States)
P. Chavel, University of Southern California (United States)
A. A. Sawchuk,, University of Southern California (United States)
T C. Strand, University of Southern California (United States)
A. R. Tanguay Jr., University of Southern California (United States)

Published in SPIE Proceedings Vol. 0232:
1980 Intl Optical Computing Conf II
William T. Rhodes, Editor(s)

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