Cathode-ray tube coupled liquid-crystal light valve and photorefractive device-based hybrid optical-pattern-recognition processor

Yulin Li; Xiaoli Fu; Dayong Wang; Hai Zhang

doi:10.1117/12.182117

5 August 1994 Cathode-ray tube coupled liquid-crystal light valve and photorefractive device-based hybrid optical-pattern-recognition processor

Yulin Li, Xiaoli Fu, Dayong Wang, Hai Zhang

Author Affiliations +

Proceedings Volume 2321, Second International Conference on Optoelectronic Science and Engineering '94; (1994) https://doi.org/10.1117/12.182117
Event: Optoelectronic Science and Engineering '94: International Conference, 1994, Beijing, China

Abstract

We have developed a new device called electrically addressed cathode-ray tube coupled liquid crystal light valve as an input interface hardware in our hybrid pattern recognition system. A photorefractive bismoth silicon oxide crystal is used as dynamic holographic filter. An implementation of real-time hybrid optical pattern recognition using optical joint transform correlator which includes two type spatial light modulators, lase sources, CCD sensor and microcomputer is described. Theoretical analysis and initial experimental results are present.

Citation Download Citation

Yulin Li, Xiaoli Fu, Dayong Wang, and Hai Zhang "Cathode-ray tube coupled liquid-crystal light valve and photorefractive device-based hybrid optical-pattern-recognition processor", Proc. SPIE 2321, Second International Conference on Optoelectronic Science and Engineering '94, (5 August 1994); https://doi.org/10.1117/12.182117

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