Patent ID: 8422351
Filing Date: 2013-04-16
Classification: G11B

Abstract:
1. An optical disc apparatus for recording information onto a plurality of disc shaped mediums of different standards or reproducing information from the plurality of disc shaped mediums, comprising: an optical pickup equipped with a spherical aberration correcting unit using a movable lens; and a disc insertion unit for inserting and ejecting the disc shaped mediums, wherein the spherical aberration correcting unit starts movement of the movable lens to an initial position during insertion of the disc shaped medium by the disc insertion unit, wherein the spherical aberration correcting unit carries out the movement of the movable lens to the initial position concurrently with disc insertion by the disc insertion unit, wherein no physical interference occurs between the spherical aberration correcting unit and disc insertion by the disc insertion unit, wherein the initial position is a predetermined reference position set by the standard of one disc shaped medium amount from among the plurality of disc shaped mediums, and wherein after the completion of the disc insertion, the optical disc apparatus discriminates the disc shaped medium by emitting the laser beam from the optical pickup onto the disc shaped medium in the setting of the moveable lens of the spherical aberration correcting unit being positioned on the initial position.