公开(公告)号：EP3907545A1

公开(公告)日：2021-11-10

申请号：EP20763397.5

申请日：2020-02-21

申请人： Huawei Technologies Co., Ltd.

发明人： XIA, Taihong ,  YANG, Chuan ,  WANG, Jianwen ,  JIANG, Haixia ,  JIANG, Lei ,  LI, Dengfeng ,  JU, Yuandao

IPC分类号： G02B7/09 ,  G02B3/14 ,  H02K33/00

摘要： This application provides a voice coil motor for driving a liquid lens and a lens assembly having a voice coil motor. The voice coil motor includes a plurality of sub motor parts. The plurality of sub motor parts can be independently controlled. The sub motor part includes: an unmovable part; a movable part, which can move along an optical axis direction relative to the unmovable part; a connection elastic piece, connected to a liquid lens and the movable part, where when a force is applied to the movable part in the optical axis direction, the movable part drives the connection elastic piece to squeeze the liquid lens, the connection elastic piece is a plate spring, and a stiffness coefficient of the connection elastic piece in the optical axis direction is greater than a stiffness coefficient of the connection elastic piece in a direction perpendicular to the optical axis direction; and a drive circuit part, configured to control a moving distance of the movable part. The voice coil motor in the foregoing technical solution can accurately implement auto focus and optical image stabilization of the liquid lens.