Apparatus for forming dielectric optical waveguides

Details Apparatus for forming dielectric optical waveguides Apparatus for forming dielectric optical waveguides

1977-07-25

1978-11-28

Lazarus, Richard B.

Plastic article or earthenware shaping or treating: apparatus

Including means advancing continuous length work through...

425 72R, 425113, 425192R, 425325, 425392, B29D 2304

Patent

active

041273702

ABSTRACT:
A method of coating a fibre in which a sleeve of polymer is extruded, fibre is fed into the sleeve as it is formed, and the diameter of the sleeve is reduced by a drawing process to produce a sleeve of polymer which loosely envelops the fibre. We also provide a fibre having a tubular sleeve of polymer, the sleeve having its molecules orientated to lie longitudinally with respect to the axis of the fibre. The sleeve has relative strength in a longitudinal plane and relative weakness in a transverse plane.

REFERENCES:
patent: 2291670 (1942-08-01), Wiley et al.
patent: 2897542 (1959-08-01), Isenberg
patent: 3911069 (1975-10-01), Fujita et al.

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