A light scanning system uses a tilting angle error correcting system, applying a conjugate relation from geometrical optics. A light beam from a light source is converged to a linear image near a deflecting surface of a deflector by a first converging optical system. The deflected light beam from the...http://www.google.se/patents/US4850663?utm_source=gb-gplus-sharePatent US4850663 - Light scanning system
