Patent ID: 11899275
Assignee: LG INNOTEK CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 17:
18. A lens driving device comprising:
a housing;
a bobbin disposed in the housing;
a first coil disposed on an outer surface of the bobbin;
a first magnet disposed on the housing;
a second magnet disposed on the bobbin;
a first position sensor disposed opposite to the second magnet to sense the second magnet; and
a third magnet disposed on the bobbin and disposed at a position opposite to the second magnet with respect to an optical axis,
wherein the third magnet comprises a portion overlapped with the first coil in a direction perpendicular to the optical axis,
wherein the second magnet comprises:
a first portion overlapped with the first coil in the direction perpendicular to the optical axis; and
a second portion disposed on the first portion and not overlapped with the first coil in the direction perpendicular to the optical axis, and

wherein a length of the second portion of the second magnet in a direction parallel to the optical axis is greater than a length of the first portion of the second magnet in the direction parallel to the optical axis.