| 摘要 |
An image blur prevention apparatus having a movable member (correction lens) which moves for preventing an image blur, or an apparatus applied to the image blur prevention apparatus includes the movable member, and an operation device which fluctuates at least one of the movable member and a contact member (a support member for movably supporting the correction lens) contacting the movable member against the other member within a fluctuation range in which the fluctuation does not appear as an image blur (with a fluctuation having an amplitude and frequency, in which the fluctuation does not appear as the image blur). With this arrangement, the frictional force between the movable member and the contact member is reduced (such that a dynamic frictional state is generated by a fluidizing effect), so that a proper operation of the movable member and a proper image blur prevention operation are enabled (smooth movement of the movable member is prevented from being impeded to generate a delay in response).
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