Patent ID: 11803050

Abstract:
An optical scanning device and an electronic imaging apparatus are provided. The optical scanning device includes a light source, a first optical unit, an optical deflector, and an imaging optical system for guiding a light beam deflected by the optical deflector to a scanned surface for imaging. The imaging optical system includes an F-θ lens satisfying fc/fs≤0.6, X1−X1c>0, and X2−X2c>0, where fs is a focal length of the F-θ lens, fc is an fθ coefficient of the F-θ lens; X1 is a distance between a projection of one incident point on the main optical axis and the scanning origin, X2 is a distance between a projection of one exit point on the main optical axis and the scanning origin, X1c is a distance between the central incident point and the scanning origin, and X2c is a distance between the central exit point and the scanning origin.