Image blur suppression device for an optical camera

A motion compensation device for suppressing image blur in an imaging optical system comprising:

• a compensation optical system;
• and
• a plurality of angular velocity sensors to detect pitching and yawing of the imaging optical system;
• and
• a drive unit to shift said compensation optical system perpendicular to an optical axis of the imaging optical system in response to horizontal motion, vertical motion, and pitching and yawing of the imaging optical system based on the output of said plurality of angular velocity sensors, the vertical motion being caused by movement of the camera in a vertical direction approximately perpendicular to the optical axis and, and the horizontal motion being caused by movement of the camera in a horizontal direction approximately perpendicular to the optical axis.

A method of compensating for motion in an imaging optical system to suppress blurring of an image produced by the optical system comprising:

• detecting pitching and yawing of the imaging optical system;
• calculating an optimal driving signal based on the detected pitching and yawing of the imaging optical system, the optical driving signal correcting for at least one of vertical and horizontal motions of the imaging optical system, the vertical motion being caused by movement of the camera in a vertical direction approximately perpendicular to the optical axis and, and the horizontal motion being caused by movement of the camera in a horizontal direction approximately perpendicular to the optical axis;
• monitoring the driving signal;
• and
• driving a compensation optical system based on the detected pitching and yawing and a difference between the optimal driving signal and the driving signal as monitored.