Patent ID: 6070015
Filing Date: 2000-05-30
Classification: G03B

Abstract:
An apparatus used for an image blur prevention, the apparatus which drives image blur correction means in accordance with an output corresponding to a detected vibration amount, and which performs a feedback loop control for driving said image blur correction means on the basis of a difference between an actual driven amount of image blur correction means and said output corresponding to the detected vibration amount, comprising:a signal processing portion which processes a signal corresponding to an image blur to generate a signal used in image blur prevention, said signal processing portion performing said signal processing by using a predetermined parameter, said predetermined parameter being directed to a loop gain of an image blur prevention control loop, said loop gain of the image blur prevention control loop being varied in accordance with a variation of said predetermined parameter;a non-volatile memory capable of rewriting data stored therein; anda setting portion which reads out data from said non-volatile memory and sets the predetermined parameter used by said signal processing portion corresponding to said readout data.