OPTICAL PICKUP AND COMATIC ABERRATION SUPPRESSION METHOD

摘要

PROBLEM TO BE SOLVED: To provide an optical pickup that can properly suppress comatic aberration.;SOLUTION: An optical pickup includes an objective 17 for converging the light emitted from a light source on an information recording surface of an optical recording medium. The optical pickup is provided with a heat source 50 for applying heat to a deviated position of the objective 17 so as to cancel comatic aberration of the objective 17 itself. The heat source 50 may be a coil, and the coil may be attached to the external surface of a lens holder 41.;COPYRIGHT: (C)2013,JPO&INPIT