Patent ID: 8480240

Claim:
An image capturing apparatus comprising: an image sensor adapted to opto-electronically convert an image of a subject; an optical member placed in front of said image sensor; first and second piezoelectric elements placed at respective ones of both ends of said optical member; first and second driving units adapted to independently vibrate said first and second piezoelectric elements, respectively; a first detection unit connected between said first piezoelectric element and said first driving unit and adapted to detect an output signal that is output from said first piezoelectric element owing to vibration of said first piezoelectric element; a second detection unit connected between said second piezoelectric element and said second driving unit and adapted to detect an output signal that is output from said second piezoelectric element owing to vibration of said second piezoelectric element; and a control unit adapted to control said first and second driving units, said first detection unit and said second detection unit, wherein the control unit controls said first and second driving units, said first detection unit and said second detection unit in a first mode so as to vibrate said optical member by vibrating said first piezoelectric element and detect the output signal, which is output from said second piezoelectric element, using said second detection unit, or vibrate said optical member by vibrating said second piezoelectric element and detect the output signal, which is output from said first piezoelectric element, using said first detection unit.