CAMERA, CAMERA SYSTEM, AND CAMERA ACCESSORY

PROBLEM TO BE SOLVED: To provide a mount structure for a camera, which is able to securely connect a camera and a camera accessory. SOLUTION: The mount structure (10) for the camera includes: a stator (41) which changes electric energy into mechanical displacement and generates a progressive oscillatory wave; a rotor (42) which is formed in an annular shape, disposed opposite the stator without being pressed, and rotates around an axis parallel to the progressing direction of subject light when a progressing oscillatory wave generated by the stator is transmitted to the rotor in pressure contact with the stator; a connecting section (46) which is disposed on the internal circumferential face of the rotor and mechanically connects to the camera accessory (2) inserted in the inside diameter side of the rotor with the rotor rotated; and a control section (34) which, when the stator and the rotor are brought into pressure contact with each other and a first signal is input, outputs a drive signal to the stator, rotates the rotor, and connects the camera accessory and the connecting section. COPYRIGHT: (C)2010,JPO&INPIT