Acoustooptic scanner apparatus and method

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340173LM, 346108, 350161W, 354 5, B41B 2124

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active

040004937

ABSTRACT:
An apparatus and method for laser-beam modulation and deflection wherein stored information is recorded on a photosensitive or other recording medium with a laser or other light beam. A plurality of separate frequencies is induced by a transducer on an acoustooptic light-modulating cell which carries and develops every frequency separately. The light beam is passed through the acoustooptic cell which modulates the light by Bragg reflection in accordance with the frequencies impressed thereon. The modulated light beams transmitted from the cell are used to record by a plurality of simultaneous scans, characters, graphical data or other form of information which is representative of the stored information on the photosensitive medium.

REFERENCES:
patent: 2155660 (1939-04-01), Jeffree
patent: 2632048 (1953-03-01), Mason
patent: 2909972 (1959-10-01), De Lano
patent: 3055258 (1962-09-01), Hurvitz
patent: 3165045 (1965-01-01), Troll
patent: 3314073 (1967-04-01), Becker
patent: 3611405 (1971-10-01), Chang
patent: 3653067 (1972-03-01), Anderson
patent: 3744039 (1973-07-01), Hrber
Baker, Charles E., Laser Display Technology, IEEE Spectrum, Dec. 1968, pp. 39-50.

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