Invention Grant
- Patent Title: Actuator and camera module
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Application No.: US16444457Application Date: 2019-06-18
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Publication No.: US10999508B2Publication Date: 2021-05-04
- Inventor: Shinichi Abe , Akihito Saito , Yoshihiro Sekimoto
- Applicant: ROHM CO., LTD.
- Applicant Address: JP Kyoto
- Assignee: ROHM CO., LTD.
- Current Assignee: ROHM CO., LTD.
- Current Assignee Address: JP Kyoto
- Agency: Cantor Colburn LLP
- Priority: JPJP2018-117990 20180621
- Main IPC: H04N5/232
- IPC: H04N5/232 ; G02B7/09 ; G02B7/02 ; H04N5/225 ; G03B13/36 ; H04N5/217

Abstract:
The present invention reduces magnetic fog noise of an actuator.
An actuator is used jointly with a position detection element to locate a lens in a direction of a first axis. A coil is formed in a manner of setting a second axis perpendicular to the first axis as a length direction, and has a first side and a second side parallel to the second axis, and a third side and a fourth side parallel to the first axis. A permanent magnet produces magnetic fields perpendicular to the first axis and the second axis and being in opposite directions with respect to the first side and the second side, respectively. During use, the position detection element is configured near the third side. The coil is split into multiple parts in a width direction on at least the third side.
An actuator is used jointly with a position detection element to locate a lens in a direction of a first axis. A coil is formed in a manner of setting a second axis perpendicular to the first axis as a length direction, and has a first side and a second side parallel to the second axis, and a third side and a fourth side parallel to the first axis. A permanent magnet produces magnetic fields perpendicular to the first axis and the second axis and being in opposite directions with respect to the first side and the second side, respectively. During use, the position detection element is configured near the third side. The coil is split into multiple parts in a width direction on at least the third side.
Public/Granted literature
- US20190394399A1 ACTUATOR AND CAMERA MODULE Public/Granted day:2019-12-26
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