Optical waveguides – Miscellaneous
Patent
1992-10-16
1994-04-12
Bovernick, Rodney B.
Optical waveguides
Miscellaneous
156296, 156174, 242 18G, 242159, 385115, 359900, G02B 604
Patent
active
053033230
ABSTRACT:
Fiber optic backlighting substrates having a predetermined shape are manufactured by a special rotating fixture having a deep, narrow peripheral groove in which several windings of the fiber may be stacked on top of one another, to provide a closely packed spiral array having a thickness on the order of one fiber diameter and a radial extent equal to several times the diameter of a single fiber thick and several fibers wide. At least one wall of the groove is preferably hinged or otherwise removable, to provide convenient access to the spiral and to permit it to be removed from the fixture, whereupon the spiral may be cut radially to form a fiber optic substrate comprising a flat array of closely packed curved fibers, from which extends one or more bundles of loose fibers. By providing a cam-shaped groove having a non-constant depth relative to the rotational axis of the fixture, fiber arrays having segments of varying radii may be fabricated.
REFERENCES:
patent: 3989578 (1976-11-01), Hashimoto
patent: 5156347 (1992-10-01), Gay, II et al.
patent: 5204927 (1993-04-01), Chin et al.
Bovernick Rodney B.
Ngo John
Poly-Optical Products, Inc.
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