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. 06, 2025
Filed:
Dec. 05, 2023
Lg Innotek Co., Ltd., Seoul, KR;
Seong Min Lee, Seoul, KR;
Sang Ok Park, Seoul, KR;
Hyune O Yoo, Seoul, KR;
Byung Wook Son, Seoul, KR;
Jun Taek Lee, Seoul, KR;
LG INNOTEK CO., LTD., Seoul, KR;
Abstract
The present embodiment relates to a lens driving device, and more particularly, to a lens driving device capable of reducing a focus alignment time of a lens by feeding back an amount of displacement in an optical axis direction of a lens while improving spatial efficiency of a bobbin. Specifically, the present embodiment includes a housing having a hollow column shape for supporting a driving magnet; At least one lens is installed inside, the outer peripheral surface is provided with a coil disposed inside the driving magnet, parallel to the optical axis inside the housing by electromagnetic interaction between the driving magnet and the coil a bobbin moving in a first direction; It relates to a lens driving device comprising a; displacement sensing unit for determining a first displacement value of the bobbin in the first direction.