US 11,956,542 B2
Actuator control apparatus and method for changing an optical path of a lens
Jun Seok Oh, Seoul (KR); and Min Kim, Seoul (KR)
Assigned to LG INNOTEK CO., LTD., Seoul (KR)
Appl. No. 17/420,450
Filed by LG INNOTEK CO., LTD., Seoul (KR)
PCT Filed Jan. 2, 2020, PCT No. PCT/KR2020/000052
§ 371(c)(1), (2) Date Jul. 2, 2021,
PCT Pub. No. WO2020/141901, PCT Pub. Date Jul. 9, 2020.
Claims priority of application No. 10-2019-0001218 (KR), filed on Jan. 4, 2019; and application No. 10-2019-0052971 (KR), filed on May 7, 2019.
Prior Publication US 2022/0086351 A1, Mar. 17, 2022
Int. Cl. H04N 5/335 (2011.01); G02B 7/09 (2021.01); G03B 5/02 (2021.01); G03B 17/12 (2021.01); H04N 23/68 (2023.01)
CPC H04N 23/687 (2023.01) [G02B 7/09 (2013.01); G03B 5/02 (2013.01); G03B 17/12 (2013.01); G03B 2205/0069 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An actuator control apparatus comprising:
an actuator which changes an optical path of a lens;
a lens support member; and
a controller which controls the actuator,
wherein the actuator includes a first driver and a second driver, which are disposed at a first side of the lens support member, and a third driver and a fourth driver which are disposed at a second side of the lens support member,
wherein a first distance between the first driver and the second driver is different from a second distance between the first driver and the third driver,
wherein the controller applies a first current to the second driver and the third driver,
wherein the controller applies a second current to the first driver and the fourth driver, and
wherein the controller determines a difference between an absolute value of the first current and an absolute value of the second current or magnitude of an absolute values of the first current and the second current to be applied to the drivers using at least one of the first distance, the second distance, and a tilting direction of the lens.