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Proceedings Paper

Liquid crystal televisions for use as spatial light modulators in a complex optical correlator
Author(s): Robin E. Kilpatrick; John H. Gilby; Sally E. Day; David R. Selviah
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Paper Abstract

A method is presented for selecting the optimum polarizer configurations for a complex optical correlator. Two twisted nematic (TN) liquid crystal televisions (LCTVs) are used to modulate intensity and phase. The profiles of intensity and phase modulation vs. applied pixel voltage are determined using a Jones calculus model of the Philips P3.4 TN LCTV between polarizers. This allows selection of separate polarizer orientations which yield the highest ranges of intensity and phase modulation. The optimum configurations provide continuous intensity modulation with approximately 261 degrees of phase modulation.

Paper Details

Date Published: 23 March 1998
PDF: 8 pages
Proc. SPIE 3386, Optical Pattern Recognition IX, (23 March 1998); doi: 10.1117/12.304751
Show Author Affiliations
Robin E. Kilpatrick, Univ. College London (United Kingdom)
John H. Gilby, Sira Technology Ctr. (United Kingdom)
Sally E. Day, Univ. College London (United Kingdom)
David R. Selviah, Univ. College London (United Kingdom)


Published in SPIE Proceedings Vol. 3386:
Optical Pattern Recognition IX
David P. Casasent; Tien-Hsin Chao, Editor(s)

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