Patent ID: 6321028
Filing Date: 2001-11-20
Classification: G11B,H04N

Abstract:
An optical recording/reproduction apparatus for recording and/or reproducing information to/from an optical disk, said optical disk recording/reproduction apparatus comprising:an objective lens opposite to said optical disk;an optical system for providing a laser beam to said objective lens;tracking control means for moving said objective lens in a radial direction of said optical disk to make said laser beam trace a track of said optical disk; andlight intercepting means for passing said laser beam therethrough without intercepting said laser beam in case that said optical disk has a first standard, and intercepting a portion of said laser beam to set said laser beam to include a first diameter along said radial direction of said optical disk and a second diameter shorter than said first diameter along a tangential direction of said optical disk which is orthogonal to said radial direction in case that said optical disk has a second standard different from said first standard.