G - Physics – 02 – B
Patent
G - Physics
02
B
88/97.1, 88/97.6
G02B 6/44 (2006.01)
Patent
CA 1315139
ABSTRACT OF THE DISCLOSURE In an optical fiber carrying spacer which has helical grooves for carrying optical fibers with each groove changing the direction of its helix for each turn about the spacer, each helical groove includes extra-length portions and compensating portions both formed at a smaller angle to a longitudinal axis of the spacer than main groove portions. The extra-length portions are each provided at a position where the direction of the helix changes. The compensating portions are each provided between adjacent extra-length portions at an angular distance ranging from 1/4 to 3/4 of the circumference of the spacer. The spacer effectively prevents stresses from being applied to the optical fibers along the longitudinal direction when the spacer is bent or curved.
575415
Nakasone Takayoshi
Yasuda Kazuo
Marks & Clerk
Ube-Nitto Kasei Co. Ltd.
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