Device for the production of an optical waveguide preform
US5113035A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 20, 1991 |
| Grant date | May 12, 1992 |
| Priority date | — |
| Expiry date | Feb 20, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T279/29
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
In the production of an optical waveguide preform, particularly for the production of mono-mode optical waveguides, a tube, or several tubes, of quartz glass are fused onto a crude preform rod of quartz glass. In a known device, the crude preform rod and the quartz glass tube slid over this are clamped at the same end into jaw chucks in the headstock of the glass lathe. Since it happens that optical waveguides that have been drawn from an optical waveguide preform produced with the known device show an inadmissibly high core eccentricity, it is proposed that another jaw chuck be provided in the tailstock for the other end of the tube preform.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.