Optical cable and optical cable chamber element
US6122426A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Jul 15, 1998 |
| Grant date | Sep 19, 2000 |
| Priority date | — |
| Expiry date | Jul 15, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/4408
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical cable has an S-Z stranded part in which plurality of chamber elements containing optical fibers are assembled around a central member in an S-Z strand in the state where their bottom faces are in contact with the central member. Each chamber element has such a characteristic that its flexural rigidity in the depth direction of its fiber containing cavity is smaller than that in the widthwise direction thereof. Assuming, of distortion energy of the chamber element in an S-Z reverse portion within the S-Z stranded part, the distortion energy in the case where the bottom face of the chamber element is in contact with the central member to be U.sub.1, and the distortion energy in the case where a side face of the chamber element is in contact with the central member to be U.sub.2, a relational expression of .DELTA.U=U.sub.1 -U.sub.2 .ltoreq.0.2(mJ/mm) is satisfied.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.