Title:
駆動装置及び光量調節装置
Document Type and Number:
Japanese Patent JP5171067
Kind Code:
B2
Abstract:
To provide a driving device reduced in cost, size, and axial length, while achieving high output and stable driving.
At the outer circumferential surface of a magnet 6, the pole facing a first outer magnetic pole portion 1a and the pole facing a third outer magnetic pole portion 10a are different from each other. At the same time, at the outer circumferential surface of the magnet 6, the pole facing a second outer magnetic pole portion 1b and the pole facing the third outer magnetic pole portion 10a are different from each other.
COPYRIGHT: (C)2008,JPO&INPIT
Inventors:
Masao Mizumaki
Application Number:
JP2007052917A
Publication Date:
March 27, 2013
Filing Date:
March 02, 2007
Export Citation:
Assignee:
Canon Inc
International Classes:
H02K37/14; G03B9/02; H02K21/18
Domestic Patent References:
| JP2007037244A | ||||
| JP2006246556A |
Attorney, Agent or Firm:
Another role Shigehisa