Beam error correction using movable correction element

Details Beam error correction using movable correction element Beam error correction using movable correction element

1996-07-29

1999-03-02

Le, Que

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

25055906, 359210, H01J 314

Patent

active

058774947

ABSTRACT:
A scanning system for scanning an imaging surface includes a radiation emitter configured to emit a beam of radiation directed towards a deflector for scanning the beam onto the imaging surface. A detector detects any misalignment of the beam with respect to the deflector. A driver moves a correction element substantially perpendicular to the beam axis of the correction element to correct for the detected misalignment during scanning of the imaging surface.

REFERENCES:
patent: 4782474 (1988-11-01), Arai et al.
patent: 4969137 (1990-11-01), Sugiyama et al.
patent: 5097351 (1992-03-01), Kramer
patent: 5179463 (1993-01-01), Kramer
patent: 5214528 (1993-05-01), Akanabe et al.
patent: 5253245 (1993-10-01), Rabedeau
patent: 5309274 (1994-05-01), Akanabe

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