GOLF BALL WITH PHOTOCHROMISM

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PROBLEM TO BE SOLVED : To provide a golf ball, which is different from traditional golf balls, providing different visibility between that in display or indoor light and that in outdoor light, and having excellent fashionability. SOLUTION : This golf ball comprises a core, and one or more cover layers molded on the core, having a plurality of dimples in the outermost layer of the cover layers. At least one of the component elements of the golf ball includes rare earth composite oxides of one or two or more kinds of rare earth oxides comprising one rare earth element, or a plurality of rare earth elements, mixed at a desired ratio, by 0.5-30 pts.mass to 100 pts.mass of base material. COPYRIGHT : (C)2007, JPO&INPIT