Fiber optic rotary joint

Details Fiber optic rotary joint Fiber optic rotary joint

1994-07-26

1995-09-12

Healy, Brian

Optical waveguides

With optical coupler

Movable coupler

385 24, 385 25, 385 27, 385 32, 385114, G02B 626, G02B 628

Patent

active

054505097

ABSTRACT:
An improved fiber optic rotary joint is provided for connecting optical fibers across a rotary-stationary interface. The rotary joint comprises a rotary hub mounted within a stationary housing which defines a cylindrical outer rim, in combination with a fiber optic tape connected between the hub and rim and adapted for respective connection at said hub and rim to a pair of fiber optic cables. The tape is coiled about the hub and extends therefrom with a reverse bend for coiling within the outer rim, whereby the tape unwraps from the hub for wrapping within the outer rim, and vice versa, in accordance with the direction of hub rotation. A tape guide unit includes rollers for maintaining the reverse bend as the tape is transferred between the inner hub and the outer rim.

REFERENCES:
patent: 4277134 (1981-07-01), Upton, Jr.
patent: 4444459 (1984-04-01), Woodwell
patent: 4525025 (1985-06-01), Hohmann et al.
patent: 4749249 (1988-06-01), Hockaday et al.
patent: 4978191 (1990-12-01), Hasegawa et al.
patent: 5078466 (1992-01-01), MacCulloch
patent: 5210378 (1993-05-01), Tusques

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