Patent ID: 7164853

Claim:
A vibration correcting optical device, comprising: a vibration detection unit that detects a vibration of the vibration correcting optical device and outputs a vibration detection signal corresponding to the vibration; a vibration state judgment unit that judges a state of the vibration of the vibration correcting optical device to be one of at least three states, based upon the vibration detection signal; an image vibration correcting optical system that corrects an image vibration caused by the vibration of the vibration correcting optical device; a drive unit that drives the image vibration correcting optical system based upon a drive signal; a drive signal arithmetic operation unit that calculates the drive signal based upon the vibration detection signal and outputs the drive signal to the drive unit; a drive signal calculation control unit that controls a method for calculating the drive signal adopted at the drive signal arithmetic operation unit in conformance to the state of the vibration ascertained through a judgment executed by the vibration state judgment unit; and a mode switch for selectively switching to at least one of a first mode and a second mode of control to be implemented by the drive signal calculation control unit, wherein: in the first mode, the control implemented by the drive signal calculation control unit is automatically switched based on the state ascertained by the vibration state judgment unit, and in the second mode, the control implemented by the drive signal calculation control unit enables the image vibration correcting optical system to correct image vibration independent of the state ascertained by the vibration state judgment unit.