Incremental printing of symbolic information – Light or beam marking apparatus or processes – Scan of light
Reexamination Certificate
2005-01-18
2005-01-18
Tran, Huan (Department: 2861)
Incremental printing of symbolic information
Light or beam marking apparatus or processes
Scan of light
C347S259000
Reexamination Certificate
active
06844892
ABSTRACT:
A multi-beam scanning device includes a light source for emitting a plurality of laser beams, a polygon mirror for deflecting the laser beams so that the laser beams scan across an object surface in a main scanning direction, an fθ lens disposed between the polygon mirror and the object surface, and a cylindrical lens that converges each laser beam in a vicinity of the polygon mirror in the auxiliary direction. A mirror is disposed between the light source and the cylindrical lens which deflects the laser beams in the auxiliary scanning direction. The mirror is rotatably supported by a mirror holder such that the traveling direction of the laser beams deflected by the mirror can be adjusted.
REFERENCES:
patent: 5812299 (1998-09-01), Minakuchi et al.
patent: 5838001 (1998-11-01), Minakuchi et al.
Iima Mitsunori
Iwazaki Shoji
Minakuchi Tadashi
Saito Toshimitsu
PENTAX Corporation
Tran Huan
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