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US 12,669,665 B2Granted
Optical fiber unit, optical fiber cable, connector-equipped cable, and method for connecting optical fiber unit
AssigneeSumitomo Electric Industries, Ltd.
InventorsFumiaki Sato, Masakazu Takami, Yuuki Shimoda, Takako Muramoto
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Abstract
An optical fiber unit includes a plurality of optical fibers, a fibrous filler disposed along the plurality of optical fibers, and a resin film covering the plurality of optical fibers and the fibrous filler from outside. In the optical fiber unit, the resin film has a film thickness smaller than a diameter of the fibrous filler.
Claims11
An optical fiber unit comprising:
- a plurality of optical fibers;
- a fibrous filler disposed along the plurality of optical fibers;
- and
- a resin film covering the plurality of optical fibers and the fibrous filler,
- wherein the resin film has a film thickness smaller than a diameter of the fibrous filler,
- only a part of the fibrous filler is embedded in the resin film,
- a remaining part of the fibrous filler is exposed inside from an inner periphery of the resin film,
- more than 50 percent of the fibrous filler is exposed inside from the inner periphery of the resin film in a cross-sectional view of the optical fiber unit, and
- an exposed surface of the fibrous filler directly faces the plurality of optical fibers.
6 more elements
Dependencies are inferred from the claim text.