Apparatus for transmitting signals between two relatively rotata

Details Apparatus for transmitting signals between two relatively rotata Apparatus for transmitting signals between two relatively rotata

1983-02-07

1985-11-26

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Signal isolator

455602, G02B 2700

Patent

active

045556318

ABSTRACT:
An optical transmission system arrangement for transmitting data between two relatively rotatable parts. A hollow cylinder with a mirror-coated inner surface onto which the light is incident at the smallest possible grazing angle and is frequently reflected. The light is coupled in and out through a coupling section in the hollow cylinder, at which the light is incident onto the inner surface. The system achieves a comparatively low damping because the reflecting power at small angles of incidence is comparatively high.

REFERENCES:
patent: 3612695 (1971-10-01), Bouwhuis
Heil and Wolf, An Electrooptical Rotating Data Transmitter, Jul. 1979, pp. 233/237.

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