Image projector with liquid crystal light shutter

Details Image projector with liquid crystal light shutter Image projector with liquid crystal light shutter

1986-09-08

1987-10-13

Grimley, A. T.

Photocopying

Including fiber optics

355 5, 383122, 350330, G03G 1500

Patent

active

046994980

ABSTRACT:
In an improved image projector with liquid crystal light shutter, a layer of ferroelectric liquid crystals contained in a liquid crystal light shutter at which the light modulated linearly in accordance with image signals is produced is of the thickness of less than a helical pitch of molecules of the liquid crystals whereby a response time becomes as fast as, for instance, 0.18 ms and the time sharing operation can be performed in the liquid crystal light shutter.

REFERENCES:
patent: 4563059 (1986-01-01), Clark et al.
Dewey, Laser-Addressed Liquid Crystal Displays, 23, Optical Engineering, 230-240, No. 3, (May/Jun.) 1984.
Hong, Lipton, Bleha, Colles and Robusto, Application of Liquid Crystal Light Valve to a Large Screen Graphics Display, SID 79.
Umeda, Hori and Mukoh, Print Head with Ferroelectric Liquid-Crystal Light-Shutter Array, SID 85.
Clark and Lagerwall, Submicrosecond Bistable Electro-Optic Switching in Liquid Crystals, Appl. Phys. Lett., 899-901, No. 11, Jun. 1, 1980.
Kubota, Komatsubara, Imai, Kato, Naemura, Nishida and Sakaguchi, A Compact High Resolution Image Projector and Printer Using a Laser Addressed Liquid Crystal Light Valve, Institute of Electronics and Communication Engineers of Japan, 5-137, Mar. 27-30, 1985.
Grinberg, Jacobson, Bleha, Miller, Fraas, Boswell and Myer, A New Real-Time Non-Coherent to Coherent Light Image Converter the Hybrid Field Effect Liquid Crystal Light Valve, 14, Optical Engineering, 217-225, No. 3, May/Jun. 1975.

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