Optical scanning apparatus, and image forming apparatus...

Details Optical scanning apparatus, and image forming apparatus... Optical scanning apparatus, and image forming apparatus...

2006-05-30

2006-05-30

Pham, Hai (Department: 2861)

Incremental printing of symbolic information

Light or beam marking apparatus or processes

Scan of light

C347S258000

Reexamination Certificate

active

07053922

ABSTRACT:
An optical scanning apparatus includes a light source unit, a deflecting unit for deflecting and scanning a light beam from the light source unit, and a scanning optical system for scanning the light beam deflected by the deflecting unit on a surface to be scanned. The scanning optical system includes a diffraction portion having an aspherical function in a sub-scanning direction.

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