OPTICAL FIBER BENDING LIGHT-RECEIVING HEAD

摘要

PROBLEM TO BE SOLVED: To properly perform live wire identification and fiber identification of optical fibers having different coating outer diameters by one bending light-receiving head without selecting or replacing bending light-receiving heads in accordance with coating outer diameters of optical fibers to enable it to conduct core wire contrast test appropriately.

SOLUTION: A bending deformation giving groove 50 is set to a shape including; a central bend part 51 bent at a center angle of≥90°; both side circular arc parts 52 and 53 which are in positions on both sides of the central bend part 51 and are formed by circular arcs having center angles of≥90°with a radius vector opposite to that of the central bend part 51; and linear parts 54 and 55 which tangentially connect end parts of the central bend part 51 and end parts of both side circular arc parts 52 and 53 to each other.

COPYRIGHT: (C)2006,JPO&NCIPI