| 摘要 |
PROBLEM TO BE SOLVED: To reduce restriction of measurement including measurement area size and bullet type which can be measured. SOLUTION: The bullet position measuring device consists of: a plurality of light generators 3a-3g for irradiating flat screen-like lights to a shooting side of a target 11 which is aimed at when shooting in directions crossing a trajectory of a bullet 8 and for generating lights different in wavelength from each other, provided with a predetermined clearance between them; a light receiving device 5 which is provided at a position facing against the plurality of light generators 3a-3g and is extended to receive the screen-like lights formed by the light generators 3a-3g in a direction the plurality of light generators 3a-3g are aligned; a bullet passing position calculation part 9 for calculating the position of the bullet 8 passing through a measuring area 13 corresponding to an area where the screen-like lights formed by at least two light generators 3a-3g overlap based on an output signal from the light receiving device 5. COPYRIGHT: (C)2007,JPO&INPIT
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