Patent ID: 6466525
Filing Date: 2002-10-15
Classification: G11B

Abstract:
An optical data storage system, comprising:an optical disc; an armature adjacent the disc; an optical transducer mounted on the arm providing an optical beam output directed parallel to the plane of the disc; an optical actuator mounted on the arm and positioned in the optical beam to adjust a direction of the optical beam; a mirror positioned to direct the optical beam in a direction perpendicular to the disc and toward the disc; an optical head at a distal end of the arm adapted to couple the optical beam to the optical disc, the optical actuator configured to provide fine adjustment of the optical beam between tracks on the disc; and an arm actuator coupled to the arm adapted to move the arm relative to the disc and provide coarse positioning of the optical head relative to tracks on the disc; wherein the optical transducer includes a laser and a beam splitter, the beam splitter directing at least a portion of an optical output from the laser as the optical beam output directed parallel to the plane of the disc and the optical output from the laser provides a diverging uncollimated beam through a lens to a surface of the beam splitter such that the optical output from the lens is reflected from the surface of the beam splitter.