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Proceedings Paper

Experimental Study Of A Liquid Crystal Light Valve As A Component In A Real Time Optical Image Processing System
Author(s): R. H. Arsenault; V. M. Ristic; A. Yi; P. Chevrette; R. D. Reeves
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Paper Abstract

The liquid crystal light valve (LCLV) developed by Hughes is a real time optical to optical image transducer capable of accepting a low-level input light intensity distribution and transforming it into an output light amplitude distribution. The input and output beams are completely separate and non-interacting. This paper describes the measurements and analyses undertaken in the first phase of this study to characterize the LCLV operational performance. The second phase of this study will involve the evaluation of the LCLV as a component in optical image processing systems. An analysis of the intensity to amplitude mapping and of its consequences in both the output Fourier and image planes is presented. Measurements showed a lack of symmetry in the intensities of the plus and minus one diffraction orders in the output Fourier plane and a strong input light intensity dependence of the phase of the output light. An appreciation of these points is necessary for proper use of the LCLV in an image processing system.

Paper Details

Date Published: 25 November 1986
PDF: 9 pages
Proc. SPIE 0661, Optical Testing and Metrology, (25 November 1986); doi: 10.1117/12.938641
Show Author Affiliations
R. H. Arsenault, University of Toronto (Canada)
V. M. Ristic, University of Toronto (Canada)
A. Yi, University of Toronto (Canada)
P. Chevrette, Defence Research Establishment Valcartier (Canada)
R. D. Reeves, SPAR Aerospace Limited (Canada)


Published in SPIE Proceedings Vol. 0661:
Optical Testing and Metrology
Chander Prakash Grover, Editor(s)

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