公开(公告)号：US09641731B2

公开(公告)日：2017-05-02

申请号：US15081889

申请日：2016-03-27

Applicant: Corephotonics Ltd.

Inventor： Ephraim Goldenberg ,  Gal Avivi ,  Gil Bachar ,  Yehonatan Mandel ,  Itay Yedid

IPC: H04N5/225 ,  H02K33/00 ,  G02B27/64

CPC classification number: H04N5/2251 ,  G02B27/646 ,  H02K33/00 ,  H04N5/2253 ,  H04N5/2254 ,  H04N5/2257

Abstract: A magnetic reluctance actuator (MRA) comprising an unstable magnetic reluctance motor (MRM) having a strong force-to-position dependency and a nonlinear force-to-current dependency, the unstable MRM operative to move a lens carrier in a given direction, a lens position sensing mechanism, and a control unit configured to obtain an input from the position sensing mechanism and to provide closed loop control to overcome the strong force-to-position dependency and the nonlinear force-to-current dependency, thereby allowing precise lens position control.

公开(公告)号：US20160337590A1

公开(公告)日：2016-11-17

申请号：US15081889

申请日：2016-03-27

Applicant: Corephotonics Ltd.

Inventor： Ephraim Goldenberg ,  Gal Avivi ,  Gil Bachar ,  Yehonatan Mandel ,  Itay Yedid

IPC: H04N5/232 ,  G02B27/64

CPC classification number: H04N5/2251 ,  G02B27/646 ,  H02K33/00 ,  H04N5/2253 ,  H04N5/2254 ,  H04N5/2257

Abstract: A magnetic reluctance actuator (MRA) comprising an unstable magnetic reluctance motor (MRM) having a strong force-to-position dependency and a nonlinear force-to-current dependency, the unstable MRM operative to move a lens carrier in a given direction, a lens position sensing mechanism, and a control unit configured to obtain an input from the position sensing mechanism and to provide closed loop control to overcome the strong force-to-position dependency and the nonlinear force-to-current dependency, thereby allowing precise lens position control.

Abstract translation: 磁阻驱动器（MRA）包括具有很强的力对位依赖性和非线性的力 - 电流依赖性的不稳定磁阻电动机（MRM），不稳定MRM可操作以沿给定方向移动透镜载体， 透镜位置检测机构，以及控制单元，其被配置为从位置感测机构获得输入，并提供闭环控制以克服强的力到位依赖性和非线性力 - 电流依赖性，由此允许精确的透镜位置 控制。