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. 13, 2025
Filed:
Aug. 05, 2021
Lg Innotek Co., Ltd., Seoul, KR;
LG INNOTEK CO., LTD., Seoul, KR;
Abstract
One embodiment comprises: a fixed unit comprising first to fourth magnets; and a movable unit disposed so as to be spaced apart from the fixed unit. The movable unit comprises: a coil comprising first to fourth coil units facing the first to fourth magnets; a position sensor comprising a first sensor for outputting a first output by detecting a magnetic field of the first magnet, a second sensor for outputting a second output by detecting a magnetic field of the second magnet, and a third sensor for outputting a third output by detecting a magnetic field of the third magnet; a first control unit for receiving the first and second outputs and driving the first and third coil units; and a second control unit for receiving the second output and driving the second and fourth coil units, wherein the movable unit moves in a direction perpendicular to an optical axis or rotates about the optical axis, by means of an interaction between the first to fourth magnets and the first to fourth coil units.