Method of covering a ribbon of optical fibers with a resin, and

Details Method of covering a ribbon of optical fibers with a resin, and Method of covering a ribbon of optical fibers with a resin, and

1995-09-29

1998-06-09

Bell, Janyce

Coating processes

Optical element produced

Polarizer, windshield, optical fiber, projection screen, or...

427358, 4273855, 427521, 427513, 427379, 118 58, 118 67, 118 69, 118 88, 118405, 118407, 118420, 1184342, 118620, 118641, 118642, 118643, 118DIG18, 118DIG19, B05D 506, B05B 500

Patent

active

057630038

ABSTRACT:
A method and apparatus for covering a ribbon of optical fibers with a resin. The resin is polymerizable under the effect of UV radiation and forms a protective covering surrounding and holding the fibers. The method includes a pre-polymerization step during which the coated fibers advance through a UV irradiating chamber having a pre-polymerization ultraviolet radiation power of less than one fourth of the total power required to polymerize the resin, which is just sufficient to initiation polymerization. This step is followed by a polymerization finishing step during which the pre-polymerized ribbon is subjected to UV radiation of higher power than the radiation produced during the pre-polymerization step, which completes the polymerization process.

REFERENCES:
patent: 4479984 (1984-10-01), Levy et al.

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