| 摘要 |
PROBLEM TO BE SOLVED: To perform appropriate shake correction by effectively controlling an optical vibration isolation function and an electronic vibration isolation function, with simple constitution. SOLUTION: Noise is removed from a signal of a camera shake sensor 8 through an LPF 51. A signal from which drift is removed and which is used for control of a correction optical system 12 is extracted from an output signal of an integrator 52 through an HPF 53. A gain 54 is applied to the signal which has passed through the HPF 53, pan/tilt control is performed, and output therefrom becomes a control signal for a correction optical system drive control part 9 for driving the correction optical system 12 to thereby perform optical vibration isolation. Meanwhile, a shake component remaining in shake correction by the correction optical system 12 is extracted from the output signal of the integrator 52, and further an appropriate gain coefficient is applied thereto by a gain 57, whereby it becomes a control signal for an image scanning range in electronic vibration isolation. COPYRIGHT: (C)2008,JPO&INPIT
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