When a contact surface 6 of a finger print input section 1 is pushed down by a fingertip and the projected portion 6b faces the recessed portion 10a, the projected portion 6b slides into the recessed portion 10a so that the contact surface 6 is put in a locked state. The LPAR multiprocessing system includes a plurality of partitions. The master station then transmits the reservation map to all stations of the network. A medium member which has a refractive index of more than one is provided between the reflective surface and the light pencil coupling portion. The device can be prepared at low cost only through 5 photolithographic steps, i. By anchoring the apparatus to the bedrock during drilling a core sample removal, the apparatus cannot become misaligned due to reaction forces between the drill and the ground.