Light scanning system.

摘要

Disclosed is a light scanning system using a tilting angle error correction system, applying a conjugate relation from geometrical optics. A light beam from a light source (15) is converged to a linear image near a deflecting surface (6) of a deflector by a first converging optical system (5). The deflected light beam from the deflecting surface (6) is converged to a light spot on a scanning plane (12) by a second converging optical system (11), and is scanned. The first converging optical system (5) possesses the light converging effect only in a plane perpendicular to the direction of scan and also has an overcorrected spherical aberration, so that the spherical aberration of the entire system can be favorably corrected, thereby making it possible to obtain a high converging performance for realizing a high resolution trend.