Patent attributes
A shake reduction apparatus comprising a movable-side unit having a movable-side frame provided with a camera unit including a lens and an image sensor, and a movable-side shaft having a spherical surface as an extremity surface thereof; a stationary-side unit having a stationary-side frame provided with a stationary-side shaft having an extremity formed as a spherical surface coming into contact with the extremity of the movable-side shaft, to which the movable-side unit is attached; linear actuators disposed between the movable-side frame and the stationary-side frame to drive the movable-side unit to rotate about two orthogonal axes; a movement detection unit for detecting a movement of a camera about the two orthogonal axes; and a controller for controlling the linear actuators to cause the movable-side unit to move so as to cancel the movement of the camera when the movement detection unit detects the movement of the camera.