US 11,966,097 B2
Camera actuator and camera module including the same
Chang Yeon Kim, Seoul (KR); and Kyung Won Kim, Seoul (KR)
Assigned to LG INNOTEK CO., LTD., Seoul (KR)
Appl. No. 17/286,647
Filed by LG INNOTEK CO., LTD., Seoul (KR)
PCT Filed Oct. 21, 2019, PCT No. PCT/KR2019/013809
§ 371(c)(1), (2) Date Apr. 19, 2021,
PCT Pub. No. WO2020/080906, PCT Pub. Date Apr. 23, 2020.
Claims priority of application No. 10-2018-0125312 (KR), filed on Oct. 19, 2018.
Prior Publication US 2021/0373278 A1, Dec. 2, 2021
Int. Cl. G02B 7/09 (2021.01); G02B 27/64 (2006.01); G03B 3/10 (2021.01); G03B 5/00 (2021.01); G03B 13/36 (2021.01); H04N 23/54 (2023.01); H04N 23/55 (2023.01)
CPC G02B 7/09 (2013.01) [G02B 27/646 (2013.01); G03B 3/10 (2013.01); G03B 5/00 (2013.01); G03B 13/36 (2013.01); H04N 23/54 (2023.01); H04N 23/55 (2023.01); G03B 2205/0007 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A camera actuator comprising:
a base;
a lens housing disposed on the base;
a ball disposed between the base and the lens housing;
a first yoke disposed in the lens housing;
a magnet coupled to an inside of the first yoke;
a coil unit facing the magnet, surrounding a part of the first yoke, and fixed to the magnet; and
a second yoke disposed under the first yoke to form a closed loop together with the first yoke,
wherein a first length of the second yoke in an optical axis direction is greater than or equal to a second length of the magnet in the optical axis direction.