公开(公告)号：US20100002317A1

公开(公告)日：2010-01-07

申请号：US12498557

申请日：2009-07-07

申请人： Tomohiko OSAKA ,  Kazunori Yokokura

发明人： Tomohiko OSAKA ,  Kazunori Yokokura

IPC分类号： G02B7/09 ,  G02B7/04

CPC分类号： H04N5/2254 ,  G02B7/08 ,  H04N5/2257

摘要： A lens driving device includes a lens holder including a tubular portion for holding a lens assembly, a driving coil fixed to the lens holder so as to position around the tubular portion and a yoke including a permanent magnet opposite to the driving coil. The yoke includes an outer hollow cylindrical portion having a rectangular cylindrical shape, the permanent magnet includes at least four permanent magnet pieces each having a rectangular cross section. Four magnetic circuit auxiliary members are disposed between four corners of the outer hollow cylindrical portion of the yoke and four ones of the permanent magnet pieces that are disposed at the four corners of the outer hollow cylindrical portion of the yoke.

摘要翻译： 透镜驱动装置包括透镜保持器，其包括用于保持透镜组件的管状部分，固定到透镜保持器以围绕管状部分定位的驱动线圈和包括与驱动线圈相对的永磁体的轭。 磁轭包括具有矩形圆柱形状的外部中空圆柱形部分，永磁体包括至少四个永久磁铁片，每个永磁体片具有矩形横截面。 四个磁路辅助构件设置在轭的外部中空圆柱形部分的四个角部和设置在轭的外部中空圆柱形部分的四个角处的四个永磁体片。

公开(公告)号：US08077398B2

公开(公告)日：2011-12-13

申请号：US12498557

申请日：2009-07-07

申请人： Tomohiko Osaka ,  Kazunori Yokokura

发明人： Tomohiko Osaka ,  Kazunori Yokokura

IPC分类号： G02B15/14

CPC分类号： H04N5/2254 ,  G02B7/08 ,  H04N5/2257

摘要： A lens driving device includes a lens holder including a tubular portion for holding a lens assembly, a driving coil fixed to the lens holder so as to position around the tubular portion, and a yoke including a permanent magnet opposite to the driving coil. The yoke includes an outer hollow cylindrical portion having a rectangular cylindrical shape, the permanent magnet includes at least four permanent magnet pieces each having a rectangular cross section. Four magnetic circuit auxiliary members are disposed between four corners of the outer hollow cylindrical portion of the yoke and four ones of the permanent magnet pieces that are disposed at the four corners of the outer hollow cylindrical portion of the yoke.

摘要翻译： 透镜驱动装置包括透镜保持器，该透镜保持器包括用于保持透镜组件的管状部分，固定到透镜保持器以围绕管状部分定位的驱动线圈以及包括与驱动线圈相对的永磁体的轭。 磁轭包括具有矩形圆柱形状的外部中空圆柱形部分，永磁体包括至少四个永久磁铁片，每个永磁体片具有矩形横截面。 四个磁路辅助构件设置在轭的外部中空圆柱形部分的四个角部和设置在轭的外部中空圆柱形部分的四个角处的四个永磁体片。