The contactless connector comprises a rotation-side light element on a
rotating body that rotates about an axis of rotation and a fixed side
light element on a fixed body that is fixed, and the rotating body
further comprises a reflective body that rotates about the axis of
rotation. The two light elements are constituted so that a light path is
formed between the two light elements when a specified fixed-side light
element is located on a light path line segment where light that is
emitted from a specified rotation-side light element is reflected by the
reflective body. The reflective body is rotated at half the rotation
speed of the rotating body.