Apparatus and method for manufacturing porous glass preform for optical fiber
US11155488B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 1, 2019 |
| Grant date | Oct 26, 2021 |
| Priority date | — |
| Expiry date | Feb 23, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B2207/85
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A manufacturing method of a porous glass preform for optical fiber by depositing glass microparticles on a starting member, including supplying a vaporizer with organic silicon compound raw material in a liquid state and a carrier gas; in the vaporizer, mixing and vaporizing the organic silicon compound raw material in a liquid state and the carrier gas to convert the organic silicon compound raw material and the carrier gas into a raw material mixed gas; supplying a burner with the raw material mixed gas and a combustible gas, combusting the raw material mixed gas and the combustible gas in the burner, and ejecting SiO2 microparticles generated by the combustion from the burner; and depositing the SiO2 microparticles ejected from the burner on the starting member by repeatedly moving the vaporizer and the burner together, in a synchronized manner, parallel to the starting member in a longitudinal direction thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.