Invention Grant
- Patent Title: Lens driving apparatus with closed-loop anti-shake structure
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Application No.: US15086202Application Date: 2016-03-31
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Publication No.: US09885880B2Publication Date: 2018-02-06
- Inventor: Chao-Chang Hu , Shu-Shan Chen , Cheng-Kai Yu , Bing-Ru Song
- Applicant: TDK TAIWAN CORP.
- Applicant Address: TW Yangmei
- Assignee: TDK TAIWAN CORP.
- Current Assignee: TDK TAIWAN CORP.
- Current Assignee Address: TW Yangmei
- Agency: Locke Lord LLP
- Agent Tim Tingkang Xia, Esq.
- Priority: TW104111222A 20150408
- Main IPC: G02B27/64
- IPC: G02B27/64 ; G03B5/02 ; G02B7/10 ; H04N5/232 ; G03B3/10

Abstract:
A lens driving apparatus with a closed-loop anti-shake structure, including: a lens holder comprising a coil; a frame comprising a plurality of magnets and receiving the lens holder; a driving circuit board comprising a plurality of coils corresponding to the plurality of magnets and disposed under the frame; a plurality of first set of elastic bodies configured such that the lens holder remains movable in a direction of a first axis with respect to the frame; a plurality of second set of elastic bodies configured such that the frame remains movable in a direction perpendicular to the first axis with respect to the driving circuit board; and a first optical module and a first optical reference respectively disposed at the driving circuit board and the lens holder, the first optical module sensing a relative movement of the first optical reference so as to sense a movement of the lens holder in the direction of the first axis.
Public/Granted literature
- US20160299350A1 LENS DRIVING APPARATUS WITH CLOSED-LOOP ANTI-SHAKE STRUCTURE Public/Granted day:2016-10-13
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