Carbon coating for a starting member used in producing optical w

Details Carbon coating for a starting member used in producing optical w Carbon coating for a starting member used in producing optical w

1979-04-16

1980-11-11

Fisher, Richard V.

Glass manufacturing

Means shaping preform from granular material with fusion means

118730, C23C 1308

Patent

active

042330521

ABSTRACT:
In making a preform for an optical waveguide, the bait rod is coated with carbon. After the preform is built up on the bait rod, it is easily removed. The carbon coating produces a smooth improved inner surface in the preform, thereby eliminating flaws which otherwise may be present when the preform is drawn into a waveguide.

REFERENCES:
patent: 3120450 (1964-02-01), Dienfendorf et al.
patent: 3775075 (1973-11-01), Keck et al.
patent: 3806570 (1974-04-01), Flamenbaum et al.
patent: 3823995 (1974-07-01), Carpenter
patent: 3933453 (1976-01-01), Barke et al.

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