| 摘要 |
Provided is an optical disc device and a control method for the same that are capable of shortening processing time for spherical aberration correction amount adjustment. The optical disc device includes: a spherical aberration corrector that corrects spherical aberration of a light beam on an optical disc; and a tracking controller that performs tracking control based on a tracking error signal. In the spherical aberration correction amount adjustment by the spherical aberration corrector, the spherical aberration corrector is arranged so that: it holds a tracking error signal immediately before an spherical aberration correction amount is changed, and performs the tracking control based on the held tracking error signal while the spherical aberration corrector is changing the spherical aberration correction amount; or it moves a light beam scanning position on the optical disc to a predetermined track while the spherical aberration corrector is changing the spherical aberration correction amount.
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