US 12,306,518 B2
Camera driving device having a plurality of timing belts
Chang Yeon Kim, Seongnam-si (KR); Byeong Ho Lee, Seongnam-si (KR); Hye Jin Yu, Seongnam-si (KR); and Byung Moon Jun, Seongnam-si (KR)
Assigned to HANWHA TECHWIN CO., LTD., Seongnam-si (KR)
Filed by HANWHA TECHWIN CO., LTD., Seongnam-si (KR)
Filed on Feb. 1, 2022, as Appl. No. 17/590,189.
Claims priority of application No. 10-2021-0122412 (KR), filed on Sep. 14, 2021.
Prior Publication US 2023/0077749 A1, Mar. 16, 2023
Int. Cl. G03B 17/56 (2021.01)
CPC G03B 17/561 (2013.01) 15 Claims
OG exemplary drawing
 
1. A camera driving device comprising:
a motor configured to generate a driving force;
an input pulley attached to the motor;
a gear assembly including a first gear coupled to the input pulley by a first timing belt, and a second gear formed coaxially with the first gear, the second gear configured to rotate together with the first gear; and
an output pulley configured to rotate together with the second gear by a second timing belt, and mounted with a camera module,
wherein a first reduction is made according to a gear transmission ratio between the input pulley and the first gear, a second reduction is made according to a gear transmission ratio between the second gear and the output pulley, and a rotation shaft of the output pulley is positioned between a rotation shaft of the input pulley and a rotation shaft of the first gear, and
wherein the first timing belt and the second timing belt are disposed in parallel with each other, and the first timing belt is positioned closer than the second timing belt to the camera module.