US 12,313,897 B2
Lens driving device and camera module including same
Chang Gyun Son, Seoul (KR); and Seung Hyeon Jeong, Seoul (KR)
Assigned to LG INNOTEK CO., LTD., Seoul (KR)
Appl. No. 17/268,842
Filed by LG INNOTEK CO., LTD., Seoul (KR)
PCT Filed Aug. 14, 2019, PCT No. PCT/KR2019/010397
§ 371(c)(1), (2) Date Feb. 16, 2021,
PCT Pub. No. WO2020/036450, PCT Pub. Date Feb. 20, 2020.
Claims priority of application No. 10-2018-0095508 (KR), filed on Aug. 16, 2018.
Prior Publication US 2021/0231904 A1, Jul. 29, 2021
Int. Cl. G02B 7/02 (2021.01); G03B 3/10 (2021.01)
CPC G02B 7/021 (2013.01) [G02B 7/025 (2013.01); G03B 3/10 (2013.01); G03B 2205/0069 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A lens driving device, comprising;
a base assembly; and
a first lens assembly including a first lens housing and a first driving unit housing disposed in the base assembly, and moving in parallel with a predetermined optical axis;
wherein the first drive unit housing comprises at least one first guide rail portion and a first group of balls disposed on the first guide rail portion,
wherein the first guide rail portion comprises a first guide body, a first guide groove formed in the first guide body, and a first guide protrusion formed on one side of the first guide body, and
wherein the first guide rail portion comprises a first shock absorbing layer inside the first guide protrusion.