- 专利标题: Lens driving apparatus and camera module
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申请号: US17341726申请日: 2021-06-08
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公开(公告)号: US12085778B2公开(公告)日: 2024-09-10
- 发明人: Toshiyuki Tanaka
- 申请人: ALPS ALPINE CO., LTD.
- 申请人地址: JP Tokyo
- 专利权人: ALPS ALPINE CO., LTD.
- 当前专利权人: ALPS ALPINE CO., LTD.
- 当前专利权人地址: JP Tokyo
- 代理机构: IPUSA, PLLC
- 优先权: JP 18234430 2018.12.14
- 主分类号: G02B7/09
- IPC分类号: G02B7/09 ; G02B27/64 ; G03B5/00 ; G03B13/36 ; H02K11/215 ; H02K41/035
摘要:
A lens driving apparatus includes a housing; a lens holding member positioned in the housing for holding a lens body, a coil, a detection magnet, and a balance magnet; first and second magnetic field generating members facing each other across the coil and the lens holding member; the detection magnet for detecting a position of the lens holding member; a magnetic detection member facing the detection magnet; the balance magnet facing the detection magnet across an optical axis of the lens body; and first and second leaf springs conducted to the ends of the coil, movably supporting the lens holding member in the optical axis direction. The detection magnet is disposed closer to the first magnetic field generating member than to the second magnetic field generating member, and the balance magnet is disposed closer to the second magnetic field generating member than to the first magnetic field generating member.
公开/授权文献
- US20210294070A1 LENS DRIVING APPARATUS AND CAMERA MODULE 公开/授权日:2021-09-23
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