| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an optical device able to correct image blur at a high speed and with high accuracy in image blur correction in macrophotography. <P>SOLUTION: In the optical device having a three-axis type image blur correction mechanism, image blur correction control means switches the lower limit of the frequency of a signal used for calculation of a target position for a correction lens group, as a hand shake signal among signals detected by angle fluctuation detecting means, between macrophotography and photography other than the macrophotography. The control means switches a gain added when the amount of drive of means for moving the correction lens group is calculated from a difference between the present position of the correction lens group and the target position through calculation in PID control, between the macrophotography and the photography other than the macrophotography. <P>COPYRIGHT: (C)2013,JPO&INPIT |
