| 摘要 |
PURPOSE:To obtain a connector for optical fiber which can align optical fibers accurately, is free from the play, and is less in coupling loss, by forming a sleeve in such a way that its front half is formed to have a cylindrical surface and rear half is formed to a conical surface and correspondingly to the sleeve, a receptacle in such a way that its front end section is formed to have a conical inner surface and rear section is formed to have a cylindrical inner surface. CONSTITUTION:A sleeve 2 to be fixed to the front end of an optical fiber 1 has a front cylindrical surface 4 at its front half and a rear conical surface 5 at its rear half and both surfaces 4 and 5 are finished with high accuracy. Correspondingly to the sleeve 2, a receptacle 3 has a conical inner surface 6 at its opened front end and a cylindrical inner surface 7 at the further interior of the conical inner surface 6. The front cylindrical surface 4 and rear conical surface 5 of the sleeve 2 are put in the cylindrical inner surface 7 and conical inner surface 6 of the receptacle 3. When the sleeve 2 is completely pushed into the receptacle 3 at the time of fixing the sleeve 2 into the receptacle 3, the front cylindrical surface 4 and cylindrical inner surface 7 make aligning actions and the center of the optical fiber 1 is aligned to the center of the receptacle 3.
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