| 摘要 |
PROBLEM TO BE SOLVED: To hold a favorable physical contact without deviation of mutual optical axis point of an optical fiber on the optical fiber connection surface of a slant projection spherical surface ferrule with a truncated conical shape. SOLUTION: In this polishing method, an angle made by the straight line for connecting the curvature center RC of a slant projection spherical surface ferrule 2 with an optical fiber optical axis point P1 and an optical fiber axis S is used asθdeg.. In this case, the truncated conical shape ferrule 2' on whose axis an optical fiber 1 is inserted and fixed is pressed perpendicularly to a polishing plate 20A and polished smoothly and next, the axis S of the ferrule 2' is held by a slant angleθdeg. for the vertical axis V of the polishing plate 20B and the tip of the ferrule 2' is polished from the orthogonally crossing surface with the axis S of the ferrule 2' to a slant plane F1 slanted byθdeg. and next the axis S of the ferrule s' is held to a slant angle (θ+α) deg. for the vertical axis V of an elastic polishing plate 20C and polished to a slant projection spherical surface Q1. |
