Cable elements comprising optical fibres and cables incorporating them
US4354732A · kind A · utility
14Cited by
4References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 7, 1979 |
| Grant date | Oct 19, 1982 |
| Priority date | — |
| Expiry date | Mar 7, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/4491
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A transmission cable using optical fibre for conveying the information consists of fibres loosely laid in helical grooves of a core so that the fibre will undulate within the groove due to over-length given by pretwisting of the fibre and curvature of the groove flanks. Reduction of the contact surface between the fibre and the core improves the electrical characteristics and reduces the sensitivity of the cable to mechanical stress.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.