| 摘要 |
<p>The present invention provides an optical pickup device that enables size to be reduced. The optical pickup device (220) moves in a feeding direction that is parallel to a radial direction of an optical disk that rotates about an axis of rotation (211), and performs recording or playback of information with respect to an information recording surface of the optical disk. The optical pickup device has a first light source (1) for emitting light of a first wavelength, a second light source (2) for emitting light of a second wavelength being different to the first wavelength, a first objective lens (3) for focusing light from the first light source onto the information recording surface, a second objective lens (4) for focusing light from the second light source onto the information recording surface, an optical system for guiding light from the first and second light sources to the first and second objective lenses, respectively, and objective lens actuators for driving the first and second objective lenses. When seen from the direction of the axis of rotation, the first and second objective lenses and the first light source are arranged in series on a line (LX) that passes through the axis of rotation and is parallel to the feeding direction.</p> |
