Optical fibre manufacture
US4155733A · kind A · utility
10Cited by
8References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 25, 1977 |
| Grant date | May 22, 1979 |
| Priority date | — |
| Expiry date | May 25, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B2205/30
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A continuous flow process is disclosed in which optical fibre is made by a method involving the chemical vapor deposition of material upon the bore of a tube. The tube is fabricated from an annular crucible around a vertical gas feed and is lowered through a hot zone where it is softened and drawn into fibre. The gas deposits one or more layers on the inside of the tube prior to drawing so as to provide the drawn fibre with optical waveguide properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.