The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 04, 2021
Filed:
Jun. 18, 2019
Rohm Co., Ltd., Kyoto, JP;
ROHM CO., LTD., Kyoto, JP;
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.