Dual-beam scanning electro-optical device from single-beam light source
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United States of America Patent
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Jul 25, 1995
Grant Date -
N/A
app pub date -
Jan 10, 1994
filing date -
Jan 10, 1994
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A raster output scanning system is disclosed which utilizes a single light source, an electro-optical device and a beam-splitter to generate two light beams in order to simultaneously scan two adjacent scan lines. Two different trains of pixel information are used to control the intensity of the laser light source and the degree of the polarization of the electro-optical device in order to modulate the two light beams with two separate trains of pixel information without using a modulating device. Each of the two light beams exiting the beam-splitter is modulated in accordance with one of the two trains of pixel information.
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