Optical scanning device, image forming apparatus, and...

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

2005-03-01

2005-03-01

Cherry, Euncha P. (Department: 2872)

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

Reexamination Certificate

active

06862123

ABSTRACT:
An optical scanning device condenses a beam deflected by a light deflector, by a scanning and imaging lens toward a surface to be scanned to form a beam spot thereon, and scans the surface to be scanned by the beam spot. At least one lens of the scanning and imaging lens is configured so that a lens body thereof is held by a holding frame, wherein a rib surface at an end in a longitudinal direction of the holding frame is inclined so that a ghost light generated as a result of the deflected beam being reflected by the end in the longitudinal direction of the holding frame is changed in light path in a sub-scan direction.

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