Automatic taking-up of a long member is enabled to reduce man-hour etc. Polycarbosilane of the present invention comprises the following repeated unit 1. Preferably, the haze of the optical film satisfies the relation HH1>0. A single pressure sensor communicates with a plurality of detected bladders located in the one or more garments. Then, the light source body is rapidly cooled from the temperature at which mercury exists in the gaseous state to a room temperature. The backhand portion interconnects the fingers portion to the wrist portion.