Patent ID: 11953744
Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
Field: Optics (Instruments)
Classification: CPC G  C | IPC G

Claim 0:
1. An optical fiber ribbon comprising:
a plurality of optical fibers arranged in parallel; and
a connecting resin layer containing a ribbon resin for coating and connecting the plurality of optical fibers,
wherein each of the plurality of optical fibers has an outer diameter of 220 μm or less; and
the ribbon resin contains a cured product of urethane (meth)acrylate, and the surface of the connecting resin layer contains an amount of silicon of 5 ppm or more and 80000 ppm or less and an amount of tin of 5 ppm or more and 30000 ppm or less, and
wherein each of the plurality of optical fibers includes a glass fiber and a coating resin layer, and the glass fiber includes a core and a cladding.