To avoid the degradation of correction accuracy of camera shake correction due to an error when acceleration at a principal point position is derived.
An imaging device includes an imaging optical system having a plurality of lenses; an imaging element for imaging a subject image; angle speed detecting means; acceleration detecting means; a principal point position deriving means for deriving a position of a principal point; moving means for moving the acceleration detecting means to stop at a position having the shortest distance from a position of the derived principal point, when the position of the principal point changes according to the movement of the lenses; shake amount deriving means for deriving shake amount on the basis of a rotation radius of angle shake generated by rotations of an optical axis, by using the detected angle speed and the acceleration; and correcting means for correcting camera shake on the basis of the derived shake amount.
| JP4630578 | Zoom lens and imaging device with it |
IMANISHI KAZUTAKA
Kato Kazunori
Hiroshi Fukuda
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