Method of producing optical fiber preform
US6895783B2 · kind B2 · utility
4Cited by
7References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 21, 2001 |
| Grant date | May 24, 2005 |
| Priority date | — |
| Expiry date | Oct 4, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P40/57
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A plurality of glass particles synthesizing burners are arranged at a predetermined burner interval opposite to a rotating starting rod. The starting rod and the glass particles synthesizing burners are relatively parallely reciprocally moved, and the soot deposition is conducted. A reciprocating speed v(mm/minute), axis rotating speed r (rpm), and burner interval L (mm) are set so that a value A expressed by the expression A=(r/v)×L is in a range 40≧A≧8.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.