| 摘要 |
PROBLEM TO BE SOLVED: To make properly controllable the position of a moving member regardless of a shake state by controlling the driving of a driving means for moving the moving member by considering inertia force imposed on the moving member by shake. SOLUTION: An SW-1 signal is generated at a release switch 204 and an IS action is selected, an internal timer is started by a lens CPU 301. When a prescribed time (t1) has elapsed, the amplitude of the camera shake calculated based on the output of a vibration detection device 302 is compared with a prescribed value (a1) by the CPU 301. When the camera shake is too large, the release of the lock means 305d of a correction optical device 305 is not executed. Thereafter, when the camera shake becomes smaller than the value (a1), the amplitude of the camera shake is compared with a prescribed value (a2)(<a1). Based on the compared result, a stepping motor is energized according to the inertia force imposed on a correction lens and the lock member so that the release of the lock means 305d is executed in order to realize a shake correction control action. |
