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

摘要

This image pickup apparatus performs feedback control so that a position of a shake correcting lens converges to a target position. A LPF and a subtracting unit divide a shake signal into low-frequency and high-frequency components. An adding unit combines each output of a high-frequency LPF and a low-frequency LPF and output the target position. A pan/tilt determination unit determines a panning speed from the shake signal. If the panning is fast, the target positions of the low-frequency and the high-frequency are controlled to converge to 0, and calculation for the target position of the high-frequency starts before that of the low-frequency at the end determination. If the panning is slow, only the target position of the low-frequency is controlled to converge to 0. The pan/tilt determination unit changes a determination condition for the detection depending on whether it is at the handheld photographing or the static state.

主权项

1. An image shake correcting device for correcting an image shake by a drive of a correcting unit, comprising:
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 detect a speed of panning or tilting to change each cut-off frequency of a filter calculation or each intermediate value calculated by the filter calculation based on the detected speed to the divided plurality of frequency components respectively, and combine signals obtained by performing the filter calculation to generate a control signal of the correcting unit, if the panning or the tilting is determined from the detection signal.