Patent attributes
An optical unit with shake-correction function is provided and includes: a movable body, a rotational support structure, a gimbal mechanism, a fixed body, and a rolling corrective-magnet drive structure. The rotational support structure, which supports the movable body to be rotatable around an optical axis, is rotatably supported by the gimbal mechanism around two axes intersecting with the optical axis. The rotational support structure includes a first annular groove provided on the movable body, a plate roller including a second annular groove facing the first annular groove, and multiple spherical objects inserted in the first annular groove and the second annular groove. The gimbal mechanism supports the plate roller to be rotatable. The rolling corrective-magnet drive structure, which rotates the movable body around the optical axis, includes a rolling corrective magnet on the movable body side, and two rolling corrective coils on the fixed body side.
