OPTICAL PICKUP

摘要

An optical pickup having an objective lens (1) for collecting a laser beam on a signal surface of an optical disk (14), lens actuators (3, 4, 5) capable of moving the objective lens (1) at least in the direction vertical to the signal surface of the optical disk (14), an actuator base (8) for supporting the lens actuators (3, 4, 5), regulation mechanisms (10a, 10b) etc. for defining the height of the actuator base (8) in the optical pickup and also defining the tilt angle of the actuator base (8) in a tangential direction (15) of the optical disk (14), and tilt generation mechanisms (6a, 6b, 6c, 6d) for varying the tilt angle of the objective lens (1), the variation being in the radial direction of the optical disk and being performed according to the height of the objective lens (1) relative to the actuator base (8).