Patent ID: 7522188

Claim:
A vibration reduction apparatus to reduce an image vibration of an object image in an imaging unit of a camera, comprising: a vibration reduction mechanism that changes a relative position between said imaging unit and a light beam forming the object image; a vibration detection unit that detects a vibration of said camera and outputs a vibration detection signal; a reference value generation unit that estimates a reference value of said vibration detection signal according to said vibration detection signal, said reference value being an output of said vibration detection unit in a stationary state that is free of the vibration; a target drive position calculation unit that calculates a vibration component as a cause of the image vibration from a difference between said vibration detection signal and an estimated reference value, and calculates a target drive position of said vibration reduction mechanism according to the vibration component; a driving unit that controls said vibration reduction mechanism to follow the target drive position; a feedback path that acquires information on a motion signal and feeds back said motion signal to the reference value generation unit to thereby correct the reference value, the information on a motion signal being acquired by analyzing a shot image of said camera; and a feedback control unit that suppresses a feedback amount of said motion signal to the reference value generation unit when said driving unit starts driving, and cancels suppression of the feedback amount after acquiring a motion signal generated by analyzing a shot image produced after the start of driving.