Optical pickup actuator and optical recording/reproducing apparatus having the same
AssigneeSamsung Electronics Co., Ltd.
InventorsSe-june PARK, Seok-jung Kim
Life of this patent
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Abstract
An optical pickup actuator and an optical recording/reproducing apparatus are provided. The optical pickup actuator can include a three-axial driving unit to independently drive an objective lens to focus a laser beam onto a disk in a focusing direction, a tracking direction and a radial-tilt direction, respectively, and a tangential-tilt driving unit to drive the three-axial driving unit in a tangential-tilt direction to drive the objective lens in the tangential-tilt direction.
Claims11
An optical pickup actuator comprising:
- a three-axial driving unit to independently drive an objective lens to focus a laser beam onto a disk in a focusing direction, a tracking direction and a radial-tilt direction, respectively;
- and
- a tangential-tilt driving unit to drive the three-axial driving unit in a tangential-tilt direction to drive the objective lens in the tangential-tilt direction.
An optical recording/reproducing apparatus comprising an optical pickup to record information onto a disk and/or to reproduce the information from the disk, a driving unit to drive the optical pickup, and a control unit to control the driving unit,
- wherein the optical pickup comprises:
- an optical system to detect a laser beam reflected from the disk, the optical system having an objective lens to focus a laser beam onto the disk;
- and
- an optical pickup actuator to drive the objective lens,
- wherein the optical pickup actuator comprises:
- a three-axial driving unit to independently drive the objective lens in a focusing direction, a tracking direction and a radial-tilt direction, respectively;
- and
- a tangential-tilt driving unit to drive the three-axial driving unit in a tangential-tilt direction to drive the objective lens in the tangential-tilt direction.
Dependencies are inferred from the claim text.