Optical scanning apparatus

Details Optical scanning apparatus Optical scanning apparatus

1993-06-15

1996-04-23

Reinhart, Mark J.

Incremental printing of symbolic information

Light or beam marking apparatus or processes

Scan of light

359206, 359216, B41J 1516

Patent

active

055108261

ABSTRACT:
In an optical scanning apparatus, a light beam emitted from a light source is collimated and is incident on a reflecting surface of a deflector via stop member. The deflector deflectively reflects the light beam to be directed to a surface to be scanned. The light beam deflectively reflected by the deflector is converged on the surface to be scanned by an optical system. The stop member has an aperture which is constructed such that a circular shape aperture and a slit-like shape aperture are combined. The width of the slit-like shape aperture is arranged in a sub-scanning direction while the circular portion of the circular shape aperture is arranged in a main scanning direction.

REFERENCES:
patent: 4253724 (1981-03-01), Minoura et al.
patent: 4554561 (1985-11-01), Daniele et al.
patent: 5161047 (1992-11-01), Tomita et al.

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