Patent ID: 7006271
Filing Date: 2006-02-28
Classification: G02B

Abstract:
1. An optical scanning device comprising: a light source; a coupling lens coupling a beam emitted from said light source; a light deflector deflecting the beam from said coupling lens at a uniform angular velocity; a line-image imaging optical system disposed between said coupling lens and light deflector, and causing the beam to image a line image long along main scanning directions on or in the vicinity of a deflection reflective surface of said light deflector; a scanning and imaging optical system causing the beam deflected by said light deflector to image a beam spot on a medium to be scanned; and an optical housing in which said light source, coupling lens, light deflector, line-image imaging optical system and scanning and imaging optical system are disposed, and contained, and wherein a plurality of holding and fixing locations for holding and fixing a light-source part comprising said light source and coupling lens are provided in at least one of said light-source part and optical housing, wherein said plurality of holding and fixing locations comprise pins and holes provided to the light source part and the optical housing, which pins and holes are combined with insertion of the pins to the holes to determine a relative spatial relationship between the light source part and the optical housing, and wherein said plurality of holding and fixing locations are those from which a selection is made as to where the light-source part is fixed, whereby a location of said light-source part is determined according to the selection, wherein the selection is made based on whether a glass cover is inserted between the coupling lens and the first deflector.