Linear optical conduits

Details Linear optical conduits Linear optical conduits

1989-12-13

1991-11-26

Ullah, Akm

Optical waveguides

Optical fiber waveguide with cladding

G02B 620, G02B 600

Patent

active

050678310

ABSTRACT:
The present invention is directed to a heat shrink clad core optical conduit and to an optical conduit having either a thermoplastic, thermoset or liquid, light transmitting core surrounded by, preferably a fluoropolymer cladding which is in turn surrounded by a tight-fitting, finish polymer jacket which may be either transparent or translucent, and is preferably made of a polyvinyl chloride, polycarbonate, acrylic or silicone material. Numerous fillers and inserts may be used in the finish jacket polymer and the finish jacket polymer may be formed into various shapes. Bondable jacket materials may be used. The preferred method of forming the manufacturing jacket around a heat shrinkable fluoropolymer cladding is by extruding a low extrusion temperature polymer over a heat shrink clad in its expanded form into which an increased interior pressure is maintained to prevent shrinkage during the extrusion process. The preferred method of forming the finish jacket around a base clad core material is by an extrusion process where the finish jacket material is extruded over a heat shrink type fluoropolymer clad, in its expanded form, cured thermoset core thereby simultaneously shrinking the clad.

REFERENCES:
patent: 3641332 (1972-02-01), Reick et al.
patent: 4753509 (1988-06-01), Parstorfer
patent: 4804246 (1989-02-01), Kobayashi et al.
patent: 4844578 (1989-07-01), Pierini et al.
patent: 4865412 (1989-09-01), Patterson
patent: 4957347 (1989-09-01), Zarian

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