Method of producing glass optical filaments
US4263031A · kind A · utility
27Cited by
10References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 12, 1978 |
| Grant date | Apr 21, 1981 |
| Priority date | — |
| Expiry date | Jun 12, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S65/90
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method of incorporating an additive or dopant oxide into a glass body produced by the oxidation of vaporous source material in a flame. The resultant glassy particles are deposited to form a porous preform having a uniform refractive index. During the consolidation process, the preform is subjected to an atmosphere including a drying agent which penetrates the interstices of the soot preform to simultaneously dry and dope the preform.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.