LENS DRIVING DEVICE

专利名称：LENS DRIVING DEVICE发明人：Yue LI,Gunji Zhang,Jian Zhao申请号：US12396276申请日：20090302

公开号：US20090219633A1公开日：20090903

专利附图：

摘要：A lens driving device has a stationary part including an iron shell, a movable partincluding a lens holder for holding a lens therein, and a driving part for moving themovable part relative to the stationary part. The driving part includes a plurality ofmagnets fixed to the iron shell, and at least one coil fixed to the lens holder. The

magnets are divided into at least two layers stacked in the direction of the optical axis ofthe lens and a plurality of groups along the circumferential direction of the lens. Eachmagnet is polarized in the radial direction of the lens. The polarities of two adjacentstacked magnetic poles in the same group are opposite to each other so as to

cooperatively form a magnetic circuit in a plane parallel to the optical axis direction. Thecoil includes an axis about which the coil is wound. The coil axis is perpendicular to theoptical axis. The coil has an upper part facing one layer of magnets and a lower partfacing the other layer of magnets.

申请人：Yue LI,Gunji Zhang,Jian Zhao

地址：Hong Kong CN,Shenzhen CN,Shenzhen CN

国籍：CN,CN,CN

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