Method for making and coating optical fibres
US4600422A · kind A · utility
6Cited by
5References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 25, 1985 |
| Grant date | Jul 15, 1986 |
| Priority date | — |
| Expiry date | Mar 25, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C25/1063
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Infrared optical fibres are provided with hermetic coatings (6) by decomposition or reaction of volatile compounds of the coating material at the surface of the fibre. Materials having melting points greater than the fibre's glass transition temperatures may thus be applied at temperatures lower than the glass transition temperatures. The fibre (1) may be sufficiently hot from a preceding fibre formation (2,3) process in line with the coating process to enable the decomposition or reaction, or additional heating of the fibre by radiation may be necessary in the reaction chamber (7).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.