Liquid crystal cells – elements and systems – Liquid crystal system
Patent
1995-03-17
1998-09-29
Sikes, William L.
Liquid crystal cells, elements and systems
Liquid crystal system
349 57, 349 61, 349 96, 349202, 359573, G02F 1139, G02F 11335, G02F 129
Patent
active
058152229
ABSTRACT:
An apparatus for deflecting light of the present invention comprises: (a) at least one pair of transference electrodes arranged facing one another; (b) a drive circuit which applies a voltage among the transference electrodes; and (c) a liquid crystal which is inserted among the transference electrodes, and whose parallel stripes that function as a diffraction grating when the voltage is applied among the transference electrodes are produced at a pitch corresponding to the applied voltage. The light can be scanned if a diffracted light by the apparatus for deflecting light is converted into a scanning light and a voltage value is changed temporally to apply the voltage among the transference electrodes. In a device for reading information, the scanning light is reflected in a bar code and the reflected light is detected by an apparatus for detecting light. In a device for stereoscopic display of the present invention, the apparatus for deflecting light is used as beam deflection means for deflecting the light beamed from a picture element which organizes the pictures of the picture display means.
REFERENCES:
patent: 3758195 (1973-09-01), Hedman, Jr. et al.
patent: 3813145 (1974-05-01), Hedman et al.
patent: 3843231 (1974-10-01), Borel et al.
patent: 4945407 (1990-07-01), Winnek
patent: 4957351 (1990-09-01), Shioji
patent: 4978902 (1990-12-01), Yang
patent: 5126995 (1992-06-01), Nishizawa
patent: 5258833 (1993-11-01), Schenk
patent: 5285268 (1994-02-01), Nakagaki et al.
European Search Report for European Application 95301779 dated Jul. 7, 1997.
A.R. Tanguay, Jr., et al., Physical characterization of the varialbe grating mode liquid crystal device, Optical Engineering, Nov.-Dec. 1983, vol. 22, No. 6, pp. 687-694, No Date Provided.
G.L. Tangonan "Variable-Grating Mode Liquid Crystals For Fibre-Optic Applications" Electronics Letters vol. 21--No. 16--Aug. 1985--pp. 701-702--No Date Provided.
Pollack et al "A Low-Noise Image Amplifier" SID Digest--1976--pp. 142-143--No Month and Date Provided.
Lu et al "Light Diffraction Phenomena in an AC--Excited Nematic Liquid Crystal Sample" Journal Appl. Physics--Apr. 1971--pp. 2138-2140--No Date Provided.
J. Freiser "Light Scanner Employing A Nematic Liquid Crystal" IBM Tech. Discl. Bulletin--vol. 15--No. 8--Jan. 1973 --pp. 2540-2541, No Date Provided.
Aritake Hirokazu
Eguchi Shin
Ishimoto Manabu
Matsuda Takahiro
Mizuno Yoshihiro
Duong Tai V.
Fujitsu Limited
Sikes William L.
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