Patent ID: 7388720
Filing Date: 2008-06-17
Classification: G02B,H04N

Abstract:
1. A lens-controlling device for controlling a first lens unit which moves for zooming and a second lens unit which moves for focusing, the lens-controlling device comprising: a first AF unit configured to detect a position of the second lens unit focusing on an object on the basis of a high-frequency component of an object image; a second AF unit configured to detect a position of the second lens unit focusing on the object using different schemes from the first AF unit; a memory storing position data of the second lens unit that corresponds to a position of the first lens unit and an object distance; and a controller controlling the movement of the second lens unit on the basis of position information of the first lens unit and the position data, wherein the control of the movement of the second lens unit is based on a detection result obtained by the second AF unit.