| 摘要 |
An optical pickup apparatus includes a first optical system for recording or reproducing signals to or from a first optical recording medium; a second optical system for recording or reproducing signals to or from a second optical recording medium; a holder for accommodating the first optical system and the second optical system on substantially the same plane; a focusing driving device for moving the holder in a first direction parallel to an optical axis of the first optical system and the second optical system; a tracking driving device for rotating the holder in a second direction perpendicular to the optical axis of the first optical system and the second optical system; a switching device for placing the first optical system on an optical path for recording or reproducing signals to or from the first optical recording medium, and for placing the second optical system on the optical path for recording or reproducing signals to or from the second optical recording medium; and a variable distance driving device for varying a distance between the first optical recording medium and the first optical system from a distance between the second optical recording medium and the second optical system when one of the first optical system and the second optical system is switched to the other optical system.
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