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:
Jan. 31, 2023
Filed:
Jul. 16, 2020
Applicant:
Tdk Taiwan Corporation, Taoyuan, TW;
Inventor:
Shusuke Ichihashi, Tokyo, JP;
Assignee:
TDK TAIWAN CORPORATION, Taoyuan, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 7/08 (2021.01); G02B 7/02 (2021.01); H04M 1/02 (2006.01); G02B 13/00 (2006.01); H04N 5/225 (2006.01);
U.S. Cl.
CPC ...
G02B 7/08 (2013.01); G02B 7/023 (2013.01); G02B 13/001 (2013.01); H04M 1/0264 (2013.01); H04N 5/2253 (2013.01); G03B 2205/0053 (2013.01);
Abstract
An optical element drive device includes a movable section and a fixed section. The movable section includes a first magnetic field generator for generating a first magnetic field and is drivable in a motion direction. The fixed section includes a sensor unit. The sensor unit carries out a detection based on the first magnetic field and a bias magnetic field different from the first magnetic field.