Patent ID: 8780217

Claim:
A shake correcting system comprising: an optical imaging system; an image sensor which converts an optical image of a subject formed on a light receiving face by the optical imaging system into an electric signal; a movable unit which comprises a movable frame in which the image sensor is fixed and a rotation restricting element; a base which movably supports the movable unit in a predetermined plane substantially orthogonal to an optical axis of the optical imaging system; a drive mechanism which drives the movable unit relative to the base in two directions vertical and orthogonal to the optical axis; a blur correcting function to correct a blur in the subject image due to a shake of the shake correcting system by moving the image sensor in an opposite direction to a direction of the blur with the drive mechanism; a rotation restricting mechanism which prevents rotation of the movable frame around the optical axis with the rotation restricting element; and a slide mechanism which allows the movable unit to be freely movable in the predetermined plane, and comprises a magnet, a magnetic plate attracted to the magnet, a spherical element supported between the magnetic plate and the magnet; and wherein the shake correcting system further comprises a latch mechanism which latches the movable unit in the base at a default position when the blur correcting function is not used; and wherein the slide mechanism and the latch mechanism are disposed so that the magnetic plate and the spherical element are maximally attracted to the magnet when the movable unit is placed in the default position relative to the base.