Process of drawing optical fiber
US5320658A · kind A · utility
22Cited by
5References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 3, 1992 |
| Grant date | Jun 14, 1994 |
| Priority date | — |
| Expiry date | Aug 3, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P40/57
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
There is provided a process of melt drawing an optical fiber from a preform therefor in which a heating furnace comprising a muffle tube inside thereof through which the optical fiber is passed is provided immediately below a melt drawing furnace to further draw the optical fiber while heated, and an interior of the muffle tube is kept in an atmosphere selected from the group consisting of an inert atmosphere, an atmosphere comprising oxygen gas and an atmosphere comprising hydrogen gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.