IMAGE SHAKE CORRECTING APPARATUS AND CONTROL METHOD THEREFOR, OPTICAL APPARATUS, AND IMAGE PICKUP APPARATUS

摘要

This image pickup apparatus detects a shake and performs feedback control. A LPF and a subtracting unit divide a detection signal into low-frequency components and high-frequency components. An output of the LPF for integrating the high-frequency components and the LPF for integrating the low-frequency components are combined in an adding unit to output the result as the target position of the correcting lens. A HPF removes the low-pass components of the shake amount applied to the image pickup apparatus. A control switching determination unit switches a first control mode for performing an image shake correction by a signal produced by frequency dividing a signal after processing signal with the HPF, and a second control mode for performing the image shake correction by a signal that is generated by subtracting a fixed offset amount calculated with the HPF based on the shake signal and dividing the result into the frequency components.

主权项

1. An image shake correcting apparatus for performing an image shake correction by the driving of a correcting unit, comprising:
a high-pass filter configured to remove a low-pass component of the shake detection signal; a dividing unit configured to divide a detection signal output by a shake detecting unit into a plurality of frequency components; and a controlling unit configured to comprise a first control mode for performing the image shake correction by using a signal obtained by dividing the detection signal processed by the high-pass filter by the dividing unit, and a second control mode for performing the image shake correction by using a signal obtained by dividing the detection signal not processed by the high-pass filter by the dividing unit.