Radiant energy – Photocells; circuits and apparatus – Signal isolator
Patent
1983-04-14
1985-10-22
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Signal isolator
250227, 455612, G02B 2700
Patent
active
045490856
ABSTRACT:
Apparatus for processing multiple discrete signals utilizing a light propagating medium such as a fiber optic strand or the like includes a first electro-optical emitter-detector pair which is transparent to the wavelength of a signal of a second electro-optical emitter-detector pair. The signal of the second pair passes through at least a portion of the first emitter and first detector without substantial electro-optical conversion, and the two signals may propagate through the medium in the same or in opposite directions. Filters may be used to prevent interference between the two emitter-detector pairs, and lenses may be added to focus the signals, if desired.
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Cooper Industries Inc.
Nelms David C.
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