APPARATUS FOR CORRECTING ABERRATION OF OPTICAL DISK AND FOR OPTICAL PICK-UP

摘要

PURPOSE: An apparatus for correcting an aberration of an optical disk and for an optical pick-up is provided to correct a core aberration and a spherical aberration by driving a moving plate to a direction of a slope and an optical axis. CONSTITUTION: An optical pick-up apparatus comprises a light source(20), an optical path changer(40) to change a processing route of an incident ray, an objective lens to focus a light irradiated from the light source(20) on an optical disk(1), a light detector(71) to receive a light reflected from the optical disk(10) and to incident through the optical path changer(40), and an optical disk aberration corrector to detect and correct a slope of the optical disk(1).