LENS POSITION ADJUSTMENT DEVICE, CAMERA MODULE, INFORMATION DEVICE, AND CAMERA DRIVING METHOD

Title:

LENS POSITION ADJUSTMENT DEVICE, CAMERA MODULE, INFORMATION DEVICE, AND CAMERA DRIVING METHOD

Document Type and Number:

WIPO Patent Application WO/2019/119454

Kind Code:

A1

Abstract:

A lens position adjustment device includes a lens holder (102), a first SMA wire (210) and a second SMA wire (212). The lens holder (102) holds a lens (222). The first SMA wire (210) is configured to move the lens holder (102) in a first direction along an optical axis of lens. The second SMA (212) wire is configured to move the lens holder (102) in a second direction along the optical axis. The second direction is opposite to the first direction. The lens holder (102) is moved in the first or second direction along the optical axis through energizing the first SMA wire (210) and the second SMA wire (212) and controlling a force that moves the lens holder (102).

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Inventors:

UNO MASARU (JP)
YONEYAMA ATSUSHI (JP)

Application Number:

PCT/CN2017/118126

Publication Date:

June 27, 2019

Filing Date:

December 23, 2017

Export Citation:

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Assignee:

HUAWEI TECH CO LTD (CN)

International Classes:

G03B13/36; G02B27/64

Domestic Patent References:

WO2010089529A1	2010-08-12
WO2017134456A1	2017-08-10

Foreign References:

CN103168264B	2015-10-14
CN104335101A	2015-02-04
CN102150073A	2011-08-10
CN104204935B	2017-05-10
CN101878443A	2010-11-03
US8866918B2	2014-10-21
CN101408658A	2009-04-15

Other References: