| 摘要 |
An optical disk apparatus includes: a light source that emits laser light; an optical section including an objective lens group positioned in close proximity to an optical recording medium to generate near-field light from laser light emitted from the light source; a gap servo section configured to control a gap between the optical recording medium and the optical section on the basis of a return light quantity of the laser light via the optical section; a focus adjusting section configured to adjust focus of the near-field light radiated onto the optical recording medium of the optical section, in a state where gap servo is being performed by the gap servo section; and a gap servo correcting section configured to correct the gap servo by the gap servo section when focus of the near-field light is adjusted by the focus adjusting section.
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