OPTICAL PICKUP DEVICE, OPTICAL PICKUP CONTROL DEVICE AND OPTICAL PICKUP CONTROL METHOD

摘要

Provided is an optical pickup device wherein a drive force of a drive device arranged on a same optical base as that for an objective lens does not affect control of the objective lens. The optical pickup device (1) is provided with an objective lens (11) for collecting laser beams to an optical disc (3); a first drive mechanism (15) for shifting the objective lens (11) on the optical base (6); a second drive mechanism (8) for shifting a movable member (9) different from the objective lens (11) on the optical base (6); a first control means (27) for outputting a first drive signal (TDS) for operating the first drive mechanism (15); and a second control means (25) for outputting a second drive signal (EDS) for operating the second drive mechanism (8). The differential value of the second drive signal (EDS) is added to the first drive signal (TDS), and the signal is inputted to the first drive mechanism (15).