Dual beam double pass raster output scanner
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United States of America Patent
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-
May 2, 2000
Grant Date -
N/A
app pub date -
Dec 21, 1998
filing date -
Dec 21, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A dual infrared beam raster scanning system has overfilled facets on the rotating polygon mirror and a double pass through a two cylindrical lens element f-theta lens group. The raster scanning system has an aspheric collimator lens, an aperture and a four lens element cylindrical lens group in the pre-polygon optics, and a two cylindrical lens element f-theta lens group and a cylindrical mirror and a cylindrical wobble correction mirror in the post-polygon mirror optics.
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