Fiber optic loop signal coupler apparatus

Details Fiber optic loop signal coupler apparatus Fiber optic loop signal coupler apparatus

1978-01-19

1981-07-07

Levy, Stewart J.

350 9615, G02B 514

Patent

active

042771340

ABSTRACT:
Fiber optic rotary coupler apparatus is disclosed in which a light signal formed in a continuous ring in a plane is transmitted between a barrel and a surrounding sleeve within which the barrel is rotatably mounted. The light signal ring is produced by a light source and an associated light transmitting fiber wound on the barrel in at least one complete circular loop of a radius such that a portion of a light signal introduced into an end thereof is transversely radiated from the fiber. Light detector means, which may include a further optical fiber for transmitting light signals to a remote detector, is carried on the sleeve. In one embodiment, a plurality of optical and electrical signal channels are incorporated into a single device.

REFERENCES:
patent: 3922063 (1975-11-01), Marrone
patent: 3982123 (1976-09-01), Goell et al.
patent: 4027945 (1977-06-01), Iverson
patent: 4088387 (1978-05-01), Lewis
patent: 4107517 (1978-08-01), Cooper
patent: 4165913 (1979-08-01), Fitch

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