An optical unit may include a gimbal mechanism having a gimbal frame part supporting a movable body through a support mechanism. The gimbal frame part may have a first support part extended part and a second support part extended part, and the support mechanism includes a first support part fixed to the fixed body and supporting the first support part extended part, and a second support part fixed to the movable body and supporting the second support part extended part. The first and the second support part extended parts are respectively supported by fitting a spherical projecting surface to a spherical recessed surface. The optical unit further includes a first and a second restriction mechanisms for restricting movement in the optical axis direction between the first and the second support part extended parts and the first and the second support parts.