| 摘要 |
A staging operation unit has a base member having a convex portion, a rotary member, a bearing member fixed on the convex portion, that has the rotary member mounted thereon rotatably with respect to the base member, an accessory. The rotary member has a rotatable base member mounted on the bearing member, a pushed-in movable member that accepts a push-in operation, with respect to the rotatable base member, in a direction along a rotation axis of the bearing member, a rotary operation detection unit that detects rotation of the rotary member and output a signal corresponding to a result of the detection of the rotation to outside, and a push-in operation detection unit that detects the push-in operation of the pushed-in movable member and output a signal corresponding to a result of the detection of the push-in operation to outside. |
