Patent ID: 7720366

Claim:
An actuator capable of translating an image-shake correcting lens of photographing optics within a plane orthogonal to an optical axis of said lens so as to suppress an image shaking; said actuator comprising a fixed member, a movable member provided with said image-shake correcting lens, said movable member being translatable and rotatable relative to said fixed member, supporting means for supporting said movable member and permitting said movable member to move within a plane in parallel with said fixed member, position detecting means for detecting a position of said movable member, driving means for translating and rotating said movable member relative to said fixed member, a plurality of positioning receiving portions provided on said fixed member, a plurality of positioning contact surfaces provided on said movable member in corresponding to said positioning receiving portions, and when said movable member is rotated, said positioning contact surfaces contacting with said positioning receiving portions, respectively, thereby said movable member to be positioned at a predetermined calibration position, and calibrating means for calibrating said position detecting means on the basis of detected values from said position detecting means when said movable member is positioned at said calibration position.