发明名称 Optical head.
摘要 <p>In an optical head, a light beam emitted from a semiconductor laser is guided to a carrier through a collimator lens and a beam splitter. An objective lens (4) movable along an optical axis and a mirror (41) having a oval reflecting surface are mounted on a carrier (50) which is movable along a radial direction of an optical disk. The guided light beam is reflected from the mirror (41) to the objective lens (4) and is converged on the optical disk by the objective lens (4). The rear surface of the mirror (41) is bonded to an adjusting member (15) on a straight line which pass through the center gravity of the mirror (41) and extends along the movable direction of the carrier (50). &lt;IMAGE&gt;</p>
申请公布号 EP0465175(A2) 申请公布日期 1992.01.08
申请号 EP19910305912 申请日期 1991.06.28
申请人 KABUSHIKI KAISHA TOSHIBA 发明人 KASAHARA, AKIHIRO, C.O. INTELLECTUAL PROPERTY DIV.;YAMASAKI, HIDEO C.O.INTELLECTUAL PROPERTY DIV.;YAMADA, AKIRA,C.0 INTELLECTUAL PROPERTY DIV.;SAITO, HIROSHI, C.O.INTELLECTUAL PROPERTY DIV.
分类号 G11B7/135 主分类号 G11B7/135
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