Glass manufacturing – Processes – Forming product or preform from molten glass
Patent
1986-01-08
1987-04-21
Lindsay, Robert
Glass manufacturing
Processes
Forming product or preform from molten glass
65 182, 427163, C03C 2502, C03B 37027
Patent
active
046593535
ABSTRACT:
The method uses a raw-material and dopant-deposition technique, which requires vapor-state reactants and thermal sources for producing a temperature gradient suited to obtain a circularly and radially varying refractive-index profile in the supporting tube.
REFERENCES:
patent: 3982916 (1976-09-01), Miller
patent: 4360371 (1982-11-01), Blankenship et al.
patent: 4428761 (1984-01-01), Howard et al.
patent: 4578097 (1986-03-01), Berkey
CSELT - Centro Studi e Laboratori Telecomunicazioni S.P.A.
Dubno Herbert
Lindsay Robert
Ross Karl F.
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