Patent ID: 7420891
Filing Date: 2008-09-02
Classification: G11B

Abstract:
1. An optical pickup device comprising: a semiconductor laser that causes outgoing of laser beam used for reproduction and recording of information on an optical disk; an objective lens that conducts the laser beam outgoing from the semiconductor laser to the optical disk; a focusing coil that drives the objective lens in a focusing direction; a tracking coil that drives the objective lens in a tracking direction; a yoke arranged in opposition to the focusing coil and the tracking coil; a pickup housing that accommodates therein the semiconductor laser, the objective lens, and the yoke; and first and second bearing portions that support the pickup housing to make the same movable, the first and second bearing portions being attached to the pickup housing and arranged on both sides with the objective lens therebetween; and wherein the yoke is thermally connected to the first bearing portion positioned on an opposite side of the yoke to the semiconductor laser.