| 摘要 |
PROBLEM TO BE SOLVED: To provide a target device of high usability, capable of being simplified and reduced in its cost. SOLUTION: This target device provided with target objects 11-13 as targets, comprises a supporting means 3 supporting one or more target objects 11-13 mounted as the targets, a moving means 2 performing motion for vertically moving a position of the supporting means 3, and a control means 21 for controlling the motion of the moving means 2. Three balloons 11-13 are used as the target objects, a frame 3 is used as the supporting means, and a spring 2 is used as the moving means. COPYRIGHT: (C)2006,JPO&NCIPI
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