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    • 30. 发明专利
    • Optical center line determination device
    • JP5370070B2
    • 2013-12-18
    • JP2009243175
    • 2009-10-22
    • 住友電気工業株式会社
    • 哲也 野田泰浩 坂本敏彦 本間
    • G01M11/00
    • PROBLEM TO BE SOLVED: To provide an optical core wire discrimination apparatus capable of maintaining good core wire discrimination characteristics without exchanging a head, for a plurality of optical fibers with different covering diameters. SOLUTION: The optical core wire discrimination apparatus includes an optical core wire discrimination head formed with a curved portion 41 for partially bending the optical fiber 9 to leak an optical signal and a body installed with the optical core wire discrimination head. The body includes a light receiving element retaining portion having a recessed portion 81 fitted onto the curved portion 41 of the optical core wire discrimination head and retaining two light receiving elements 82 to face the curved portion 41 along the recessed portion 81, and an operation lever for relatively moving the light receiving element retaining portion to the body. The optical core wire discrimination head has a protrusion portion 42 in the center of the curved portion 41, and an indentation portion 83 wider than the protrusion portion 42 at a position corresponding to the protrusion portion 42 in the recessed portion 81. COPYRIGHT: (C)2011,JPO&INPIT