PHOTOMOD

OPTO-ISOLATORS AND OPTO-ISOLATOR ASSEMBLIES, EACH INCLUDING AT LEAST ONE PHOTOELECTRIC CELL; MODULAR CIRCUIT STRUCTURAL COMPONENTS, EACH CONTAINING AT LEAST ONE PHOTOELECTRIC CELL; ASSEMBLIES OF CIRCUIT STRUCTURAL COMPONENTS OF WHICH AT LEAST ONE STRUCTURAL COMPONENT IS A PHOTOELECTRIC CELL; AND OPTO-ISOLATORS EACH COMPRISING AT LEAST ONE PHOTOELECTRIC CELL OF THE PHOTOCONDUCTIVE TYPE