TRACKING CONTROL METHOD, TRACKING CONTROL DEVICE, AND OPTICAL DISK DEVICE

摘要

A tracking control method pertaining to an optical pickup (11) that is provided with: an objective lens (11a) for condensing laser light on the information recording surface of an optical disk (40); and a light-receiving element (11b) for receiving reflected light from the information recording surface of the optical disk (40) and converting this light into an electrical signal. This tracking control method has: a lens midpoint control step (S4) for controlling the position of the objective lens (11a) so as to suppress the oscillation of the objective lens (11a) on the basis of a signal fed back from a lens error signal generated from the electrical signal; a tracking pull-in step (S9) for performing a tracking pull-in process that controls the position of the objective lens (11a) so as to follow the track of the optical disk (40); and a step (S7) for lowering the feedback loop gain of the lens midpoint control at the lens midpoint control step prior to the start of the tracking pull-in step.