Glass manufacturing – Processes – Forming product or preform from molten glass
Patent
1979-08-20
1981-02-17
Lindsay, Jr., Robert L.
Glass manufacturing
Processes
Forming product or preform from molten glass
65 3C, 65 11W, 65 32, C03C 2502, C03B 3702
Patent
active
042512506
ABSTRACT:
A process and apparatus for producing light conducting fibers characterized by introducing multi-component glasses into a quartz glass crucible, melting the multi-component glasses, homogenizing and refining the melt, subsequently drawing the glass fiber through an opening in the base of the quartz crystal and then coating the fiber with an optically active synthetic material. During the homogenizing and refining of the melt, gas, such as dry oxygen, is introduced and passed through the melt. So that fibers of any length can be drawn, additional glass material in the form of premanufactured, highly pure glass rods are introduced into the crucible as necessary.
REFERENCES:
patent: 4032313 (1977-06-01), Tokuhara
patent: 4118212 (1978-10-01), Aulich et al.
patent: 4133664 (1979-01-01), Aulich et al.
patent: 4193782 (1980-03-01), Aulich et al.
Preparation and Properties of Low-Loss Optical Fibers with a Fused Silica Core and Plastic Cladding, Grabmaier et al., Siemens-Forsch-u. Entwickl Ber. Bd., 6 (7/1977), No. 5.
Preparation of Optical Fibers of High Tensile Strength, Aulich et al., Siemens-Forsch-u. Entwickl-Ber. Bd 7 3, 1978, No. 3.
Aulich Hubert
Eisenrith Karl-Heinz
Lindsay, Jr. Robert L.
Siemens Aktiengesellschaft
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