Optical unit with shake-correction function

An optical unit with shake-correction function, comprising:

• a movable body comprising a camera module;
• a rotational support structure, configured to rotatably support the movable body around an optical axis of a lens of the camera module;
• a gimbal mechanism, configured to rotatably support the rotational support structure around a first axis intersecting the optical axis, and around a second axis intersecting the optical axis and the first axis;
• and
• a fixed body, configured to support the movable body through the gimbal mechanism and the rotational support structure,
• wherein the rotational support structure comprises:
• a first annular groove, being provided in the movable body in a state of being coaxial with the optical axis, and
• a plate roller, having a second annular groove facing the first annular groove in a direction of the optical axis;
• a plurality of spherical objects, being inserted into the first annular groove and the second annular groove to roll between the movable body and the plate roller;
• and
• a pressurization structure, configured to apply a force for bringing the first annular groove and the second annular groove close to each other in the direction of the optical axis,
• wherein the gimbal mechanism is configured to rotatably support the plate roller around the first axis,
• wherein the plate roller is non-magnetic,
• wherein the pressurization structure comprises:
• a magnetic component, being fixed to one portion in a circumferential direction around the optical axis of the plate roller, and
• a magnet, being fixed to one portion in the circumferential direction of the movable body to attract the magnetic component.