Optical beam modulating device
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United States of America Patent
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Jun 16, 1992
Grant Date -
N/A
app pub date -
Dec 16, 1988
filing date -
May 20, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An optical beam modulating device used for recording halftone plate duplicate images on a recording material including two multi-channel optical beam modulators, each including a rectangular parallelepiped modulator crystal which has a prescribed number of acoustic electrodes installed on one side surface. The electrodes are installed at equal pitch intervals so that Gauss beams can be directed across the electrodes separately from each other, and the positions at which the electrodes of one modulator are installed are shifted by one-half pitch with respect to the positions at which the acoustic electrodes of the other modulator are installed.
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