Dual beam double pass raster output scanner

Details Dual beam double pass raster output scanner Dual beam double pass raster output scanner

1998-12-21

2000-08-15

Spyrou, Cassandra

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359217, 359218, 359204, 359206, 359207, 347233, 347243, G02B 2608

Patent

active

061045233

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 wobble correction mirror in the post-polygon mirror optics.

REFERENCES:
patent: 4355860 (1982-10-01), Lavallee
patent: 4941719 (1990-07-01), Hisada
patent: 5512949 (1996-04-01), Fisli et al.
patent: 5550668 (1996-08-01), Appel
patent: 5757535 (1998-05-01), Ichikawa
patent: 5831758 (1998-11-01), Sakai

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