Patent ID: 6772428
Filing Date: 2004-08-03
Classification: G11B

Abstract:
An optical writing and reading apparatus comprising:a deck base having an opening at its center, on which an optical pickup including an object-glass is mounted and can be moved along both sides of the opening, and which is formed adjacent to the opening with a center hole elongated in a direction perpendicular to a moving direction of the optical pickup, and is formed around the center hole with a plurality of fastening holes into which screws are screwed; and a spindle motor having a turntable at its shaft and having an integral bracket at its bottom surface, the bracket being formed at its center with a center reference hole and formed around the center reference hole with assembling holes elongated in a direction perpendicular to a moving direction of the optical pickup, the assembling holes being arranged at positions corresponding to the fastening holes of the deck base.