| 摘要 |
PROBLEM TO BE SOLVED: To provide a polishing method for sufficiently polishing a polished surface of an optical element, particularly a curved polished surface (concave/convex surface) in every corner, and to provide a polishing tool. SOLUTION: Polishing is carried out by impregnating a cotton portion 13 with abrasive solution. Specifically, cotton is coarsely wound on a core bar, and then the cotton is tightly wound from above, to thereby form the cotton portion 13 having an arbitrary pressure distribution imparted to the polishing tool 10. Then the cotton portion 13 is impregnated with the abrasive solution. The shape of the cotton wound on the core bar may be made slender, or may be like a disk radially extending from the core bar. Further a hydrophilic adhesive may be employed. Furthermore a portion of the core bar, where the cotton is not wound, may be coated with a water-repellent coating. Alternatively an abrasive solution feeding pipe 11 may be employed as the core bar, and while the abrasive solution is fed to the cotton portion via the abrasive solution feeding pipe 11, curved surface polishing is carried out. COPYRIGHT: (C)2008,JPO&INPIT
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