Hollow fiberoptic

Details Hollow fiberoptic Hollow fiberoptic

1985-07-08

1988-09-06

Lee, John

350 9624, 350 9626, 350 9633, G02B 620

Patent

active

047688580

ABSTRACT:
A fiberoptic includes a guide for light or other electromagnetic energy which has a single fiber core with a ring-shaped cross-section and defines an outer cylindrical surface and an inner cylindrical surface. A cylindrical central hollow channel extends between the ends of the fiberoptic through the center of the single fiber ring-shaped core. Various devices including coherent fiber viewing bundles, hollow tubular transport channels and the like may be slidingly disposed through the center channel of the core.

REFERENCES:
patent: 3261356 (1966-07-01), Wallace
patent: 3436141 (1969-04-01), Comte
patent: 3498286 (1970-03-01), Polanyi et al.
patent: 3583786 (1971-06-01), Marcatilli
patent: 4294234 (1981-10-01), Matsuo
patent: 4583539 (1986-04-01), Karlin et al.
patent: 4603943 (1986-08-01), Okoshi
Fiberoptics OISD Encyclopedia 1979, pp. E-97 through E-99.
Presentation No. THAA2, "Self-Imaging by Ring Core Fibers", p. 123, Thomas Niemeier, R. Ulrich, S. B. Poole.

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