Patent ID: 6862123
Filing Date: 2005-03-01
Classification: B41J,G02B,H01L,H04N

Abstract:
1. An optical scanning device condensing 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 scanning the surface to be scanned by the beam spot, wherein 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 an inner 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 holding frame is turned outside of an effective writing range in a main scan direction, and wherein an outer rib surface at the end in the longitudinal direction of the holding frame is parallel to an optical axis through a center of the scanning and imaging lens.