| 摘要 |
<P>PROBLEM TO BE SOLVED: To facilitate the mounting of an optical pickup of an optical tape recording/playing-back device. <P>SOLUTION: This optical pickup includes a means for changing over an optical path of laser beams emitted from a laser source 1 and two objective lenses 7a, 7b which are shifted to the direction perpendicular to a track of an optical tape medium. By making the recording/playing-back operation performable by using the objective lens which is the one easier to perform a tracking control, the tracking controllable range as one pickup is expanded, then the mounting of the optical pickup at the manufacture of the optical recording/playing-back device is facilitated. <P>COPYRIGHT: (C)2008,JPO&INPIT |
