Method and apparatus for the production of preforms for optical

Details Method and apparatus for the production of preforms for optical Method and apparatus for the production of preforms for optical

1980-03-11

1982-01-19

Lindsay, Jr., Robert L.

Glass manufacturing

Processes

Forming product or preform from molten glass

65 111, 65 13, 65 183, 65144, C03C 2502

Patent

active

043115012

ABSTRACT:
A method for the production of a preform with a view to obtain an optical fibre with index jump or gradient, consisting in spreading over a substrate, a solution of doped transparent substance, the said substrate being simultaneously driven in rotation about its axis and heated; the solution is spread over successive parts of the substrate, and each part starts being heated when the solution is being spread thereon.
The present invention finds an application in the production of silica preforms.

REFERENCES:
patent: 4173459 (1979-11-01), Aulich

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