Title:
LENS DRIVE DEVICE, CAMERA MODULE, AND CAMERA-MOUNTED DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/138041
Kind Code:
A1
Abstract:
This lens drive device is provided with an AF drive part using the driving force of a VCM and an image stabilization drive part using the driving force of the VCM. An image stabilization support member is constituted of a pair of power supply suspension wires and a pair of signal suspension wires, and couples an image stabilization fixed part with an AF fixed part. An AF movable part includes a position detection magnet, and the AF fixed part includes an AF power supply line, a signal line, a coil power supply line, and an AF control part. The AF control part includes: a Hall element disposed opposite the position detection magnet and detecting the position of the AF movable part in the optical axis direction on the basis of a change in a magnetic field; a coil control part controlling the energizing current for an AF coil on the basis of a control signal supplied through the signal suspension wires and the detection results of the Hall element; and an autofocus circuit board whereon the Hall element and the coil control part are mounted.
Inventors:
MURAKAMI TOMOYUKI
Application Number:
PCT/JP2016/000709
Publication Date:
August 17, 2017
Filing Date:
February 10, 2016
Export Citation:
Assignee:
MITSUMI ELECTRIC CO LTD (JP)
MURAKAMI TOMOYUKI
MURAKAMI TOMOYUKI
International Classes:
G02B7/04; G02B7/08; G03B5/00; H04N5/225; H04N5/232
Domestic Patent References:
| WO2014100516A1 | 2014-06-26 |
Foreign References:
| JP2014219675A | 2014-11-20 | |||
| JP2013210550A | 2013-10-10 | |||
| JP2015114670A | 2015-06-22 | |||
| JP2016051078A | 2016-04-11 |
Attorney, Agent or Firm:
WASHIDA, Kimihito (JP)
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