Fabrication machine of optical fiber

Details Fabrication machine of optical fiber Fabrication machine of optical fiber

1996-10-02

1999-02-09

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

Means feeding fluent stock from plural sources to common...

Extrusion shaping means

425461, 2641711, 26417213, B29C 47012

Patent

active

058691073

ABSTRACT:
In a fabrication machine of sea island type optical fiber having a plurality of wings by spinning, when a sea part polymer is insufficiently supplied into space between the adjacent wings to cause fusion of the adjacent wings, failing in producing an optical fiber having the desired optical characteristics. The present invention solved this problem. A guide member introduces the sea part polymer supplied from sea part polymer inlets into flow paths or slits between projection wings of a partition wall for a flow path control of an island part. A sufficient amount of sea part polymer is supplied to the space between the adjacent wings of an island part of the obtained optical fiber and an optical fiber having the desired optical characteristics can be obtained.

REFERENCES:
patent: 3692423 (1972-09-01), Okamoto et al.
patent: 3716614 (1973-02-01), Okamoto et al.
patent: 3778208 (1973-12-01), Bisset et al.
patent: 4251200 (1981-02-01), Parkin
patent: 4350006 (1982-09-01), Okamoto et al.
patent: 4445833 (1984-05-01), Moriki et al.
patent: 4732716 (1988-03-01), Sakunaga et al.

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