| 摘要 |
A polishing member for polishing an end face of an optical fiber comprises a substrate and a polishing layer overlaid on the substrate, the polishing layer having been formed with application of a coating composition, which contains a binder and polishing particles as principal constituents, onto the substrate. The polishing layer contains first particles, which act as the polishing particles and are constituted of silica particles having a mean particle diameter falling within the range of 5 nm to 50 nm, and second particles, which are constituted of silica particles having a mean particle diameter 50 to 2,500 times as large as the mean particle diameter of the first particles.
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