US 11,899,275 B2
Lens driving apparatus, and camera module and optical device including same
Jun Taek Lee, Seoul (KR); and Kap Jin Lee, Seoul (KR)
Assigned to LG INNOTEK CO., LTD., Seoul (KR)
Filed by LG INNOTEK CO., LTD., Seoul (KR)
Filed on Jun. 9, 2022, as Appl. No. 17/836,511.
Application 17/836,511 is a continuation of application No. 16/093,077, granted, now 11,378,773, previously published as PCT/KR2017/003665, filed on Apr. 4, 2017.
Claims priority of application No. 10-2016-0044723 (KR), filed on Apr. 12, 2016.
Prior Publication US 2022/0365312 A1, Nov. 17, 2022
Int. Cl. G02B 7/10 (2021.01); G03B 3/10 (2021.01); G02B 7/08 (2021.01); G02B 13/00 (2006.01); H04N 23/54 (2023.01); H04N 23/55 (2023.01); G02B 27/64 (2006.01); H05K 1/02 (2006.01)
CPC G02B 7/102 (2013.01) [G02B 7/08 (2013.01); G02B 13/001 (2013.01); G02B 27/646 (2013.01); G03B 3/10 (2013.01); H04N 23/54 (2023.01); H04N 23/55 (2023.01); H05K 1/0274 (2013.01)] 20 Claims
OG exemplary drawing
 
1. 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; and
a first position sensor disposed opposite to the second magnet to sense the second magnet,
wherein the second magnet comprises:
a first portion overlapped with the first coil in a direction perpendicular to an 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.