Using liquid-crystal TVs in Vander Lugt optical correlators

Natalie Clark; Charles M. Crandall; Michael K. Giles

doi:10.1117/12.49731

1 November 1991 Using liquid-crystal TVs in Vander Lugt optical correlators

Natalie Clark, Charles M. Crandall, Michael K. Giles

Proceedings Volume 1564, Optical Information Processing Systems and Architectures III; (1991) https://doi.org/10.1117/12.49731
Event: San Diego, '91, 1991, San Diego, CA, United States

Abstract

Implementation of a liquid crystal television (LCTV) for a binary phase only converging beam Vander Lugt correlator system is described. The peculiar pixel array structure of the LCTV characterized by diffraction, scaling, and sampling is presented in a generalized form that can be easily adapted to any pixelated spatial light modulator. It is concluded that twisted nematic LCTV has a potential for becoming an effective and inexpensive spatial light modulator. The twisted nematic LCTV is capable of providing both continuous amplitude and phase modulation and can be used for a variety of real-time optical pattern recognition applications.

Citation Download Citation

Natalie Clark, Charles M. Crandall, and Michael K. Giles "Using liquid-crystal TVs in Vander Lugt optical correlators", Proc. SPIE 1564, Optical Information Processing Systems and Architectures III, (1 November 1991); https://doi.org/10.1117/12.49731

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