Optical waveguide slip ring assembly

Details Optical waveguide slip ring assembly Optical waveguide slip ring assembly

1983-04-05

1985-05-28

Sikes, William L.

350 961, 350 9615, G02B 514

Patent

active

045196737

ABSTRACT:
An optical slip ring comprises a housing made of low refractive index material which defines a hollow toroid (10) and a pair of passageways (15A, 15B) leading from the toroid (10). One passageway (15B) leaves the toroid (10) steplessly in a clockwise direction and passageway (15A) leaves the toroid (10) steplessly in an anti (counter-)clockwise direction. The toroid (10) and the passageways (15A, 15B) are filled with high refractive index fluid. The housing is formed in two portions which are mounted for relative rotation about an axis (13) perpendicular to the toroidal equatorial plane (12) and coincident with the center (14) of the toroid, each portion having an interface lying on a surface of revolution (which may be the toroidal equatorial plane (12) ) generated about the axis (13), one housing portion incorporating one passageway (15A) and the other housing portion incorporating the other passageway (15B).

REFERENCES:
patent: 4109997 (1978-08-01), Iverson
patent: 4259584 (1981-03-01), Krumme
patent: 4277134 (1981-07-01), Upton, Jr.
patent: 4278323 (1981-07-01), Waldman
patent: 4401360 (1983-08-01), Streckmann et al.
patent: 4436367 (1984-03-01), Lewis et al.
patent: 4447114 (1984-05-01), Koene
patent: 4456903 (1984-06-01), Kishi et al.
patent: 4460242 (1984-07-01), Birch et al.
patent: 4466695 (1984-08-01), Kruger
Photonics Spectra, Feb. 1982, "Rotary Joints: Fiber Optics' Slip Rings", pp. 41-42, Lewis et al.
Eureka, Jun. 1981, "Optical Fibres Outperform Slip Rings", p. 47.

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