ROS scanner incorporating cylindrical mirror in pre-polygon opti

Details ROS scanner incorporating cylindrical mirror in pre-polygon opti ROS scanner incorporating cylindrical mirror in pre-polygon opti

1991-04-01

1992-08-25

Ben, Loha

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359218, 250236, G02B 2610

Patent

active

051424037

ABSTRACT:
The efficiency of a raster output scanning system is enhanced by replacing a folding mirror cylindrical lens in the pre-polygon optics with a single cylindrical mirror. The mirror is designed and positioned to direct a beam input in a different direction along an optical path and to focus the beam in the sagittal plane at an optimum line at the facet surface. The mirror is arranged so that the focus line is parallel to the angle the mirror makes with the system optical axis and coincident with the vertical plane of the polygon facets upon which it impinges.

REFERENCES:
patent: 3706484 (1972-12-01), Doi et al.
patent: 3804485 (1974-04-01), Clarke
patent: 3873180 (1975-03-01), Bousky
patent: 4230902 (1990-10-01), Hugi et al.
patent: 5018805 (1991-05-01), Kessler

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