| 摘要 |
PROBLEM TO BE SOLVED: To easily perform lead-out operation of an optical fiber, without damaging the optical fiber in the slot groove of a slot core when intermediate post branching. SOLUTION: The optical fiber cable 1 comprises a slot core 7, having a slot groove 5 which houses the optical fiber 3; and a sheath 9 which covers the periphery of the slot core 7. An eccentric sheath structure is one in which the sheath 9 has the sheath thickness, which is relatively thicker on the side of an open part 11 of the slot groove 5 than on the opposite side of the open part 11 of the slot groove 5. Furthermore, Y-axis is set as the direction connecting the center of the open part 11 of the slot groove 5 passing through the center C of the cable, in the cross section perpendicular to the longitudinal direction of the optical fiber cable 1, and X-axis is set as the direction passing through the center C of the cable and perpendicular to the Y-axis, linear bodies are disposed on the Y-axis and/or, in the vicinity thereof so that the Y-axis becomes a neutral line for bending of the cable, and the position of the optical fiber 3 housed in the slot groove 5 substantially coincides with the Y-axis. COPYRIGHT: (C)2008,JPO&INPIT
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