Minimization of differential bow in multiple beam scanning optic

Details Minimization of differential bow in multiple beam scanning optic Minimization of differential bow in multiple beam scanning optic

1994-10-25

1996-05-14

Coles, Sr., Edward L.

Facsimile and static presentation processing

Facsimile

Picture signal generator

358480, 359196, 359197, 359208, 359204, 348203, H04N 104, G02B 2608

Patent

active

055173306

ABSTRACT:
A raster scanning system is disclosed which utilizes a post polygon optics which generates a field curvature to substantially reduce a differential bow. The post polygon optics of this invention comprises a first lens, a second lens and a wobble correction mirror. The second lens and the wobble correction mirror generate a field curvature to reduce the differential bow and the combination of the first lens, second lens and the wobble mirror correction minimizes the generated field curvature.

REFERENCES:
patent: 4139257 (1979-02-01), Matsumoto
patent: 4247160 (1981-01-01), Brueggemann
patent: 4508422 (1985-04-01), Karlsson
patent: 4512625 (1985-04-01), Brueggemann
patent: 4805974 (1989-02-01), Brueggemann et al.
patent: 5333067 (1994-07-01), Chung

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