Patent ID: 7379220

Claim:
A multi-beam color scanning device, comprising: a multi-beam light source unit that emits a plurality of light beams having different wavelengths; a first polygonal mirror that deflects the plurality of light beams emitted by said multi-beam light source unit to scan in a first predetermined direction; an fθ optical system, the plurality of beams deflected by said first polygonal mirror passing through said fθ optical system; a second polygonal mirror that deflects the plurality of light beams passed through said fθ optical system in a second predetermined direction which is perpendicular to the first predetermined direction, said second polygonal mirror deflecting the plurality of light beams by one line in the second predetermined direction at every scanning of the plurality of light beams in said first predetermined direction, the plurality of light beams scanning within a predetermined scanning area defined by deflection of said first polygonal mirror and said second polygonal mirror; a light receiving unit that received the plurality of light beams reflected by an object located within the predetermined scanning area, an operation system that obtains a three-dimensional shape and color of the object based on output of said light receiving unit.