| 摘要 |
PROBLEM TO BE SOLVED: To add competitive elements or entertaining elements to golf practice by providing a color meter and a spectrophotometer at a plurality of recess sections in a hit ball falling-on area and/or at adjacent regions and inside surfaces of holes, by coloring a specific color to a hit ball, and by indicating which recesses or holes the hit ball enters by identifying the color of the hit ball. SOLUTION: A wire net 18 is assembled to a curved section of a central hole 8 in a collecting site 4, and a water-receiving pipe 10 is further disposed at a lower direction thereof to open one side edge upward. Restraining plates 11a, 11b, are slideably supported to a restraining plate receiver 12 in the middle of a hole 8a, and a ball 9 is restrained one by one by moving up and down the restraining plates in turn by a cylinder. The ball 9 is emitted by a standard light source 13 of a color identification device 17, and the color is identified by incidenting reflected light through a reflecting plate to a color meter 15. Identified result is transferred to a central processing unit 28 and is indicated on an indication device 27 according to an order of a valuated point instruction or a target instruction.
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