Patent ID: 11906803
Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 7:
8. An optical fiber ribbon comprising:
a plurality of optical fiber cores arranged in parallel in a direction orthogonal to a longitudinal direction of the optical fiber cores; and
a coupling member configured to couple the plurality of optical fiber cores,
wherein a plurality of coupled sections and a plurality of separate sections are alternately provided in the longitudinal direction, one of the plurality of the coupled sections being in a state in which all adjacent optical fiber cores of the plurality of optical fiber cores are coupled by the coupling member, one of the plurality of separate sections being in a state in which at least two of the optical fiber cores adjacent to each other are not coupled by the coupling member,
wherein the plurality of optical fiber cores are divided into three or more groups each including at least two optical fiber cores,
wherein, in the three or more groups, the optical fiber cores adjacent to each other are coupled to each other in a state of being in contact with each other,
wherein, in the coupled sections, adjacent groups of the three or more groups are coupled to each other,
wherein, in the separate sections, adjacent groups of the three or more groups are not coupled to each other, and
wherein at least one group of the three or more groups has four or more cores.