Patent ID: 6396615
Filing Date: 2002-05-28
Classification: B41J,G02B

Abstract:
A multi-beam scanning optical system, comprising:a plurality of laser diodes that respectively emit a plurality of laser beams, each of said plurality of laser diodes being accommodated in a casing of a plurality of casings; a laser diode holding unit that holds said plurality of casings, heat generated by each of said plurality of laser diodes being mutually conducted among said plurality of laser diodes through said plurality of casings and said laser diode holding unit; a polygonal mirror having a plurality of reflecting surfaces, said plurality of laser beams being deflected by said polygonal mirror and being scanned within a predetermined angular range; and an optical system, scanning, beams deflected by said polygonal mirror being incident on said optical system, said optical system converging incident beams on a plurality of surfaces to be scanned, respectively.