Title:
BLADE DRIVING DEVICE, IMAGE CAPTURE APPARATUS PROVIDED WITH BLADE DRIVING DEVICE, AND ACTUATOR
Document Type and Number:
WIPO Patent Application WO/2018/110248
Kind Code:
A1
Abstract:
Obtained is a simple and compact structure. The present invention is provided with: a base plate 10 having an opening 11a for an optical path; a first blade 20 and a second blade 30 which open/close the opening 11a by rotating above the base plate 10; a first magnet 40 fixed to the first blade 20; a second magnet 50 fixed to the second blade 30; a yoke 60 fixed to the base plate 10; and a first coil 70 and a second coil 80 wound around the yoke 60. The yoke 60 includes a first magnetic pole portion 61 near the first magnet 40, a second magnetic pole portion 62 near the second magnet 50, and coupling portions 63, 64 via which the first magnetic pole portion 61 is coupled to the second magnetic pole portion 62. The first magnetic pole portion 61 and the second magnetic pole portion 62 include near piece portions 61a, 62a near the corresponding magnets, and extended portions 61b, 62b being continuous with the near piece portions 61a, 62a, respectively, and extending in a direction intersecting with a blade support surface of the base plate 10.
Inventors:
USHIO RYOSUKE (JP)
Application Number:
PCT/JP2017/042243
Publication Date:
June 21, 2018
Filing Date:
November 24, 2017
Export Citation:
Assignee:
NIDEC COPAL CORP (JP)
International Classes:
G03B9/10
Domestic Patent References:
| WO2016158742A1 | 2016-10-06 |
Foreign References:
| JP2008061318A | 2008-03-13 | |||
| JP2005241874A | 2005-09-08 | |||
| JP2006171545A | 2006-06-29 | |||
| JP2012120308A | 2012-06-21 | |||
| JP2008083203A | 2008-04-10 | |||
| JPH05257051A | 1993-10-08 |
Attorney, Agent or Firm:
EICHI PATENT & TRADEMARK CORP. (JP)
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