Invention Grant
- Patent Title: Lens driving apparatus, and camera module and optical device comprising same
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Application No.: US17135695Application Date: 2020-12-28
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Publication No.: US11561365B2Publication Date: 2023-01-24
- Inventor: Jung Cheol Kim , Kap Jin Lee
- Applicant: LG INNOTEK CO., LTD.
- Applicant Address: KR Seoul
- Assignee: LG INNOTEK CO., LTD.
- Current Assignee: LG INNOTEK CO., LTD.
- Current Assignee Address: KR Seoul
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: KR10-2017-0040003 20170329
- Main IPC: G02B7/09
- IPC: G02B7/09 ; G03B3/10 ; H04N5/225 ; G02B7/08 ; G02B27/64 ; G03B5/00 ; G03B5/02 ; G03B17/12

Abstract:
A lens moving apparatus includes a housing, a bobbin disposed in the housing, a first coil disposed on the bobbin, a magnet configured to move the bobbin in a first direction parallel to an optical axis by an electromagnetic interaction with the first coil, an elastic member coupled to the bobbin, and a second coil disposed on the housing. A first portion of the second coil is coupled to the housing. The second coil generates an induction voltage resulting from an inductive interaction with the first coil when the bobbin moves in the first direction.
Public/Granted literature
- US20210116674A1 LENS DRIVING APPARATUS, AND CAMERA MODULE AND OPTICAL DEVICE COMPRISING SAME Public/Granted day:2021-04-22
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