Method of flame finishing optical fiber preforms
US5192350A · kind A · utility
16Cited by
5References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 1, 1991 |
| Grant date | Mar 9, 1993 |
| Priority date | — |
| Expiry date | Feb 1, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B37/01876
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A cylindrical piece of glass (4) is subjected to heating passes on a glassmaker's lathe. Possible opto-geometrical defects of said piece of glass are detected and measured and then said defects are corrected by machining the outside surface thereof during a correction pass performed on the same glassmaker's lathe.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.