US PATENT SUBCLASS 347 / 135
.~.~.~.~ Light intensity modulation means

Current as of: June, 1999
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347 /   HD   INCREMENTAL PRINTING OF SYMBOLIC INFORMATION

111  DF  ELECTRIC MARKING APPARATUS OR PROCESSES {3}
112  DF  .~ Electrostatic {8}
129  DF  .~.~ Photo scanning {7}
134  DF  .~.~.~ Optical elements interposed between record receiver and beam generator {2}
135.~.~.~.~ Light intensity modulation means {1}
136  DF  .~.~.~.~.~> Shutter device

DEFINITION

Classification: 347/135

Light intensity modulation means:

(under subclass 134) Subject matter wherein a recording energy of at least one writing beam is varied by an

electrically variable optically transmission element, located between the medium and the light beam generator, in accordance with the information signal thereby creating at least one modulated writing beam.

(1) Note. The electrically variable optically transmission element may be acousto-optic, electro-optic, Bragg-cell, light valve, spatial light modulator, TIR device (total internal reflection device), or magneto-optic.

SEE OR SEARCH THIS CLASS, SUBCLASS:

239, for a specific light modular in a plural beam recorder.

255, for a specific light modular in a singular beam recorder.