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:
Mar. 02, 2021
Filed:
Jan. 02, 2019
Jahwa Electronics Co., Ltd., Chungcheongbuk-do, KR;
Je Seung Yeon, Chungcheongbuk-do, KR;
Jung Min Son, Incheon, KR;
Hyo Jo Jeong, Chungcheongbuk-do, KR;
Min Gyu Suh, Seoul, KR;
Myung Gyun Son, Gyeongsangbuk-do, KR;
JAHWA ELECTRONICS CO., LTD., Chungcheongbuk-do, KR;
Abstract
An actuator with a multipolar magnet structure includes a carrier configured so that a lens is loaded thereon, the carrier being configured to linearly move along an optical axis direction, a housing configured to accommodate the carrier, a coil unit provided in the housing and having an n number of coils arranged along the optical axis direction, where n is a natural number of 2 or above, and a magnet mounted to the carrier to face the coil unit, the magnet having an n+1 number of magnetic poles facing the coil unit.