Title:
レンズ駆動装置の磁気回路
Document Type and Number:
Japanese Patent JP5827923
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a magnetic circuit for a lens drive device able to reduce the dimensions of the outer shape of the entire device including the magnetic circuit.SOLUTION: In a magnetic circuit for a lens drive device, a plurality of magnetic field generating members (17a) are fixed on a side face along the direction of the optical axis of a first holder (7) such that a magnetic plate (172) magnetized in the direction of plate thickness is sandwiched between a pair of yokes (171 and 173). A plurality of coils (16a) are fixed to the internal wall of a second holder, opposite the side face of the first holder (7) so as to sandwich the magnetic field generating members (17a). A part of the wounded portion of the coil (16a) is located in a gap between the pair of yokes (171 and 173).
Inventors:
Otsuki Shiko
Takashi Kihara
Takashi Kihara
Application Number:
JP2012112363A
Publication Date:
December 02, 2015
Filing Date:
May 16, 2012
Export Citation:
Assignee:
ALPS ELECTRIC CO.,LTD.
International Classes:
G03B5/00; G02B7/04; H02K33/16; H04N5/225; H04N5/232
Domestic Patent References:
| JP2011107470A | ||||
| JP2007071915A | ||||
| JP11185261A | ||||
| JP61130027U | ||||
| JP2009535757A | ||||
| JP62129949A | ||||
| JP2004265532A | ||||
| JP2011064870A |
Foreign References:
| WO2006112269A1 |
Attorney, Agent or Firm:
野▲崎▼ 照夫