Camera-shake preventing device

Abstract

A camera-shake preventing device for preventing an image deflection due to a camera-shake by driving a part of an optical system on detecting the camera-shake, device being capable of restraining a futile consumption of a battery and previously confirming an effect to compensate the camera-shake. The device has a camera-shake detector, a computing unit, a camera-shake compensating lens, a lens driving unit and a compensating mode selecting unit. The camera-shake detector detects the camera-shake caused by a hand movement. The computing unit computes a proper camera-shake compensation quantity from the detected camera-shake. The camera-shake compensating lens is drivable for compensating the camera-shake. The lens driving unit drives the camera-shake compensating lens in such a direction as to cause no image deflection in accordance with the compensation quantity computed by the computing unit. The compensating mode selecting unit selects any one of camera-shake compensating modes, i.e., a regular compensating mode for regularly compensating the camera-shake after a release button has been half-depressed and a release compensating mode for compensating the camera-shake after the release button has been full-depressed.

Dependencies are inferred from the claim text.