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US 12,613,388 B2Granted
Slot type optical fiber cable
AssigneeSumitomo Electric Industries, Ltd.
InventorsFumiaki Sato, Eimi Kasai, Kenta Tsuchiya, Yuuki Shimoda, Takao Hirama, Satomi Ido, Kentaro Takeda, Hitoshi Tsubakiyama, Ken Takahashi
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Abstract
A slot type optical fiber cable includes a slot rod including a plurality of ribs for forming a plurality of slot grooves, and a plurality of optical fibers accommodated in the slot grooves. The number of the slot grooves is three or four.
Claims14
A slot type optical fiber cable comprising:
- a slot rod including a plurality of ribs for forming a plurality of slot grooves;
- and
- a plurality of optical fibers accommodated in the slot grooves,
- wherein the number of the slot grooves is three or four, and
- wherein when a length in a thickness direction of the rib is a and a length from a portion of the rib in contact with the press wrapping tape to a root of the rib is b, a value of a/b is 0.1 or more and less than 0.25 so as to both improve a temperature characteristic of the slot type optical fiber cable and prevent rib collapse.
2 more elements
Dependencies are inferred from the claim text.