公开(公告)号：US20040246877A1

公开(公告)日：2004-12-09

申请号：US10893433

申请日：2004-07-19

申请人： Hitachi Maxell, Ltd.

发明人： Osamu Ishizaki ,  Katsusuke Shimazaki ,  Hiroyuki Awano ,  Reiji Tamura ,  Tsuyoshi Maro ,  Toshinori Sugiyama

IPC分类号： G11B007/00

CPC分类号： G11B7/13925 ,  G11B7/0937 ,  G11B7/121 ,  G11B7/122 ,  G11B7/1374 ,  G11B11/10534 ,  G11B11/10543 ,  G11B11/10554 ,  G11B11/10576 ,  G11B11/1058 ,  G11B2007/13727

摘要： A magneto-optical recording head comprises a magnetic coil formed on a lower surface of a transparent substrate opposed to a magneto-optical disk. A heat sink layer is provided at the outside of the magnetic coil on the lower surface. An objective lens is supported on an upper surface of the transparent substrate. The heat, which is generated by the magnetic coil, is released via the heat sink layer to the space between the magneto-optical disk and the substrate. The release of the heat is facilitated by the air stream which is generated by the rotation of the magneto-optical disk. The heat can be effectively released from the magnetic coil without inhibiting optical characteristics of the objective lens.

公开(公告)号：US20020097639A1

公开(公告)日：2002-07-25

申请号：US09973021

申请日：2001-10-10

申请人： Hitachi Maxell, Ltd.

发明人： Osamu Ishizaki ,  Katsusuke Shimazaki ,  Hiroyuki Awano ,  Reiji Tamura ,  Tsuyoshi Maro ,  Toshinori Sugiyama

IPC分类号： G11B007/00 ,  G11B015/64 ,  G11B017/32

CPC分类号： G11B7/13925 ,  G11B7/0937 ,  G11B7/121 ,  G11B7/122 ,  G11B7/1374 ,  G11B11/10534 ,  G11B11/10543 ,  G11B11/10554 ,  G11B11/10576 ,  G11B11/1058 ,  G11B2007/13727

摘要： A magneto-optical recording head comprises a magnetic coil formed on a lower surface of a transparent substrate opposed to a magneto-optical disk. A heat sink layer is provided at the outside of the magnetic coil on the lower surface. An objective lens is supported on an upper surface of the transparent substrate. The heat, which is generated by the magnetic coil, is released via the heat sink layer to the space between the magneto-optical disk and the substrate. The release of the heat is facilitated by the air stream which is generated by the rotation of the magneto-optical disk. The heat can be effectively released from the magnetic coil without inhibiting optical characteristics of the objective lens.

摘要翻译： 磁光记录头包括形成在与磁光盘相对的透明基板的下表面上的电磁线圈。 散热层设置在下表面的磁性线圈的外侧。 物镜支撑在透明基板的上表面上。 由磁性线圈产生的热量经由散热层释放到磁光盘与基板之间的空间。 通过由磁光盘的旋转产生的空气流促进了热的释放。 可以有效地从磁线圈释放热量，而不会妨碍物镜的光学特性。