US 11,988,888 B2
Lens actuator
Kyung Won Kim, Seoul (KR); and Hyun Ho Choi, Seoul (KR)
Assigned to LG INNOTEK CO., LTD., Seoul (KR)
Appl. No. 16/975,652
Filed by LG INNOTEK CO., LTD., Seoul (KR)
PCT Filed Feb. 27, 2019, PCT No. PCT/KR2019/002362
§ 371(c)(1), (2) Date Aug. 25, 2020,
PCT Pub. No. WO2019/168342, PCT Pub. Date Sep. 6, 2019.
Claims priority of application No. 10-2018-0024802 (KR), filed on Feb. 28, 2018.
Prior Publication US 2020/0409015 A1, Dec. 31, 2020
Int. Cl. G02B 7/00 (2021.01); G03B 3/10 (2021.01); G03B 5/02 (2021.01); G03B 17/12 (2021.01); H04N 23/55 (2023.01)
CPC G02B 7/003 (2013.01) [G03B 3/10 (2013.01); G03B 5/02 (2013.01); G03B 17/12 (2013.01); H04N 23/55 (2023.01); G03B 2205/0046 (2013.01); G03B 2205/0053 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A lens actuator comprising:
a base;
a pin coupled to the base;
a housing including a group of lenses and configured to move along the pin in an optical axis direction; a magnet disposed on at least one side of the housing;
a yoke disposed to be spaced apart from the magnet; and
a coil disposed between the magnet and the yoke,
wherein the housing includes a guide hole on one side thereof and a guide groove on an other side thereof, and the pin includes a first pin disposed in the guide hole and a second pin disposed in the guide groove,
wherein an attractive force is applied between the yoke and the magnet, and
wherein the housing includes a third protrusion protruding to a side, and the guide groove is disposed in the third protrusion.