Title:
LENS DRIVE DEVICE, CAMERA MODULE, AND CAMERA-EQUIPPED DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/246465
Kind Code:
A1
Abstract:
Provided are a lens drive device capable of reducing the effects of external magnetism and which can be made compact and low-profile, a camera module, and a camera-equipped device. A lens drive device (1) is provided with a first fixed part (12), a first movable part (11), a first supporting part (14), and a Z-direction drive unit (13) which moves the first movable section in an optical axis direction (the Z-direction) relative to the first fixed part and is constituted by an ultrasonic motor that converts vibration motion into rotational motion. The lens drive device further has a rotating body (15) which rotates around the optical axis in response to rotational motion of the Z-direction drive unit, and a mechanical element which converts the rotational motion of the rotating body into linear motion in the optical axis direction, the first movable part being moved in the optical axis direction by rotation of the rotating body.
Inventors:
SUZUKI SHUN
ITAGAKI YOICHI
HOESLI RAPHAEL
ROTEN MAXIME
BRUMANN MICHAEL
BAUME LOANN
ITAGAKI YOICHI
HOESLI RAPHAEL
ROTEN MAXIME
BRUMANN MICHAEL
BAUME LOANN
Application Number:
PCT/JP2020/021770
Publication Date:
December 10, 2020
Filing Date:
June 02, 2020
Export Citation:
Assignee:
MINISWYS S A (CH)
MITSUMI ELECTRIC CO LTD (JP)
SUZUKI SHUN
ITAGAKI YOICHI
MITSUMI ELECTRIC CO LTD (JP)
SUZUKI SHUN
ITAGAKI YOICHI
International Classes:
G03B5/00; G02B7/04; G03B15/00; G03B17/02; H02N2/04; H02N2/12; H04N5/225; H04N5/232
Foreign References:
| JP2008167561A | 2008-07-17 | |||
| JPS6090408U | 1985-06-20 | |||
| JP2009258497A | 2009-11-05 | |||
| JP2006338026A | 2006-12-14 | |||
| JP2013210550A | 2013-10-10 | |||
| JP2011215350A | 2011-10-27 | |||
| JP2008089803A | 2008-04-17 | |||
| JP2009136050A | 2009-06-18 | |||
| JP2005124280A | 2005-05-12 |
Attorney, Agent or Firm:
WASHIDA & ASSOCIATES (JP)
Download PDF: