Alston & Bird LLP
Zoom lens barrel driving system for camera
 A zoom lens barrel driving system for a camera includes a driving source, a magnification controlling unit, and a focus controlling unit. The magnification controlling unit is formed with a plurality of barrels and a plurality of lens groups. The barrels and the lens groups move in an optical axis direction upon receipt of a driving power from the driving source such that magnification continuously varies. The focus controlling unit is formed by the lens groups. The lens groups repeatedly move between a near focal position and an infinite focal position in the optical axis direction in synchronization with variation in the magnification to perform a focus controlling operation. 
Samsung Aerospace Industries, Ltd.
G
G02B
inventional
Seon-Ho Nae-Jin Jin-Hwan Byung-Jun Yong-Hag
Lee Jo Kim Mun Choi