Opto-Electronic Devices and Networks

The transducing properties of electroluminescent and photo-responsive cells are described. The light amplifying and spectrum-converting characteristics of a circuit consisting of an electric power supply and a series combination of the two types of cells whose impedances have been matched are discussed. The construction and operation of an opto-electronic bistable device-the "optron"-employing positive radiation feedback, is reported. The optron is both a storage cell and a switch with dual (optical and electrical) signal input and output. Numerous logic networks, composed of electric series and parallel combinations of electroluminescent and photo-conductive cells with selected optical couplings have been designed, constructed, and operated.