Patent ID: 8125711

Claim:
An image blur correction apparatus comprising: a first lens unit including a first correction lens; a second lens unit including a second correction lens having a power opposite to that of the first correction lens; a supporting unit configured to align the first lens unit and the second lens unit in a direction of an optical axis, so that the first lens unit and the second lens unit can independently move in a direction perpendicular to the optical axis; a driving unit configured to drive the first lens unit and the second lens unit; a first position detection unit configured to detect the position of the first lens unit relative to the supporting unit; a second position detection unit configured to detect the position of the second lens unit relative to the first lens unit; a shake detection unit configured to detect a shake amount added to the image blur correction apparatus; and a control unit configured to control the driving unit based on an output of the shake detection unit, wherein the control unit is configured to control the first lens unit and the second lens unit so that the first lens unit moves based on an output of the first position detection unit and the second lens unit moves in a direction opposite to a moving direction of the first lens unit based on an output of the second position detection unit.