Optical scanning device and image forming apparatus

Details Optical scanning device and image forming apparatus Optical scanning device and image forming apparatus

2006-02-28

2006-02-28

Cherry, Euncha P. (Department: 2872)

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

C359S822000

Reexamination Certificate

active

07006271

ABSTRACT:
A coupling lens couples a beam emitted from a light source. A light deflector deflects the beam from the coupling lens at a uniform angular velocity. A line-image imaging optical system is disposed between the coupling lens and light deflector, and causes the beam to image a line image long along main scanning directions on or in the vicinity of a deflection reflective surface of the light deflector. A scanning and imaging optical system causes the beam deflected by the light deflector to image a beam spot on a medium to be scanned. In an optical housing, the light source, coupling lens, light deflector, line-image imaging optical system and scanning and imaging optical system are disposed, and contained. A plurality of holding and fixing locations are provided for holding and fixing a light-source part including the light source and coupling lens is provided in at least one of the light-source part and optical housing.

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