US 12,282,203 B2
Lens driving device, camera module, and optical instrument
Sang Jun Min, Seoul (KR); Tae Jin Jung, Seoul (KR); Kyoung Ho Yoo, Seoul (KR); and Sung Guk Lee, Seoul (KR)
Assigned to LG INNOTEK CO., LTD., Seoul (KR)
Filed by LG INNOTEK CO., LTD., Seoul (KR)
Filed on Feb. 14, 2022, as Appl. No. 17/671,343.
Application 17/671,343 is a continuation of application No. 16/477,448, granted, now 11,275,229, previously published as PCT/KR2018/001883, filed on Feb. 13, 2018.
Claims priority of application No. 10-2017-0025073 (KR), filed on Feb. 24, 2017; application No. 10-2017-0025078 (KR), filed on Feb. 24, 2017; application No. 10-2017-0025080 (KR), filed on Feb. 24, 2017; application No. 10-2017-0025082 (KR), filed on Feb. 24, 2017; and application No. 10-2017-0025290 (KR), filed on Feb. 27, 2017.
Prior Publication US 2022/0163755 A1, May 26, 2022
Int. Cl. G02B 7/09 (2021.01); G02B 27/64 (2006.01); G03B 5/04 (2021.01); G03B 13/36 (2021.01); H02K 5/24 (2006.01); H02K 11/21 (2016.01); H02K 41/035 (2006.01)
CPC G02B 7/09 (2013.01) [G02B 27/646 (2013.01); G03B 5/04 (2013.01); G03B 13/36 (2013.01); H02K 5/24 (2013.01); H02K 11/21 (2016.01); H02K 41/0356 (2013.01); G03B 2205/0015 (2013.01); G03B 2205/0069 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A lens driving device comprising:
a base;
a housing disposed on the base;
a bobbin disposed in the housing;
a first coil disposed on the bobbin;
a first magnet disposed on the housing and facing the first coil;
a board disposed on the base and comprising a second coil configured to electromagnetically interact with the first magnet;
an upper elastic member disposed on an upper portion of the bobbin and coupled to the bobbin and the housing;
a support member electrically connecting the upper elastic member and the board; and
a damper connecting the bobbin and the upper elastic member;
a second magnet disposed on a first side of the bobbin;
a sensor configured to detect the second magnet;
a third magnet disposed on a second side of the bobbin that is opposite to the first side of the bobbin;
a first yoke disposed on a first side of the housing at a lower side of the sensor; and
a second yoke disposed on a second side of the housing that is opposite to the first side of the housing,
wherein the upper elastic member comprises an outer part coupled to the housing, an inner part coupled to the bobbin, a connection part connecting the outer part and the inner part, and a coupling part extending from the outer part and coupled with the support member,
wherein the bobbin comprises a lug protruding from an upper surface of the bobbin,
wherein the damper is disposed on the lug of the bobbin and the connection part of the upper elastic member,
wherein the first yoke comprises a body part disposed at the lower side of the sensor, and an extension part extending from the body part, and
wherein the extension part contacts the first magnet, the extension part being located on both sides of the body part.