Patent
1985-11-15
1988-06-14
Punter, William H.
350392, G02F 103
Patent
active
047508159
ABSTRACT:
A method and apparatus for generating optical information are disclosed. A plurality of electrode wires are arranged on an electro-optical crystal, a light beam passing through the electro-optical crystal is spatially phase-modulated by an electro-optical effect due to a voltage applied to the electrode wires, a portion of light distribution spread by diffraction of the phase-modulated light beam is blocked by an optical system having an aperture or a slit arranged on a focal plane of the optical system, and the light passed through the aperture is focused to generate optical information composed of a minimum unit equal to a multiple of a minimum electrode-to-electrode distance.
REFERENCES:
patent: Re28702 (1976-01-01), Macovski
patent: 2002515 (1935-05-01), Worrall
patent: 3923380 (1975-12-01), Hattori et al.
patent: 4389659 (1983-06-01), Sprague
patent: 4396252 (1983-08-01), Turner
patent: 4421387 (1983-12-01), Sprague
patent: 4450459 (1984-05-01), Turner et al.
patent: 4468084 (1984-08-01), Hutcheson et al.
Flores et al., "A Linear Total Internal Reflection Spatial Light Modulator and its Application in Optical Information Processing", Conf.: Topical Meeting on Integrated & Guided Wave Optics, Pacific Grove, CA USA, Jun. 6-8, 1982 pp. FA3/1-4.
Kingston et al., "Broadband Guided-Wave Optical Frequency Translator Using an Electro-Optical Bragg Array", App. Phys. Lett. 5-1-83, pp. 759-761.
Sasaki et al., "Electrooptic Multichannel Waveguide Deflector" Electronics Letts. 5-12-77 pp. 295-296.
Hammer et al., "Low-Loss Single-Mode Optical Waveguides & Efficient Hihg-Speed Modulators of Linb.sub.x O.sub.3 on LitaO.sub.3," App. Phys. Letts. 6-1974, pp. 545-547.
Cole, T. W. "Electrooptical Array Processor for Complex Signals" App. Optics, 9-15-78, pp. 2952-2955.
Cole, T. W. "Configurations for the Complex-Internal-Reflection (C.T.R.) Light Modulator", Electronics Letts. 4-12-79, pp. 217-218.
De Barros et al., "High-Speed Electro-Optic Diffraction Modulator for Baseband Operation", Proc. IEE 7-1972, pp. 807-814.
Sprague et al., "Linear Total Internal Reflection Spatial Light Modulator for Laser Printing" Proc. SPIE vol. 388, p. 46.sup.+.
Arimoto Akira
Kataoka Keiji
Hitachi , Ltd.
Punter William H.
LandOfFree
Method and apparatus for generating optical information does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for generating optical information, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for generating optical information will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-502055