Process for producing glass preform for optical fiber
US5597398A · kind A · utility
8Cited by
4References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 15, 1994 |
| Grant date | Jan 28, 1997 |
| Priority date | — |
| Expiry date | Jun 15, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P40/57
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A process for producing a porous glass preform for optical fiber by depositing fine glass particles on an outer surface of a glass material while moving the glass material, including the steps of: preheating a portion of the glass material for not less than 5 minutes to clean the portion of the glass material in an apparatus for depositing fine glass particles; and depositing fine glass particles on the portion of the glass material cleaned by the preheating, in the apparatus for depositing fine glass particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.