Disc device that controls the incident angle of a light beam striking a disc

摘要

PCT No. PCT/JP96/03150 Sec. 371 Date Jun. 18, 1997 Sec. 102(e) Date Jun. 18, 1997 PCT Filed Oct. 28, 1996 PCT Pub. No. WO97/15922 PCT Pub. Date May 1, 1997An optical disc driving device employing an optical disc as a recording medium. The device includes a skew control mechanism for controlling relative tilt between an optical disc and an objective lens for selectively recording and/or reproducing data on or from a first optical disc having a standard recoding density and a second optical disc having a high recording density. The relative tilt between the second optical disc and the objective lens is controlled by the skew control mechanism only when the second optical disc is loaded and data is recorded and/or reproduced on or from the second optical disc.