Electro-optical multivibrator using electroluminescent and photoconductive elements

Claim 1

A MONOSTABLE ELECTRO-OPTICAL DEVICE CAPABLE OF PRODUCING AN OUTPUT SIGNAL OF A GIVEN DURATION IN RESPONSE TO AN INPUT SIGNAL WHICH MAY BE OF VARYING DURATION, COMPRISING, IN COMBINATION, RADIATION-EMISSIVE SIGNAL INPUT MEANS; RADIATION-SENSITIVE SIGNAL OUTPUT MEANS; A FIRST RADIATION-EMISSIVE ELEMENT OPTICALLY COUPLED TO THE SIGNAL OUTPUT MEANS AND CAPABLE OF EMITTING RADIATION TO SAID SIGNAL OUTPUT MEANS TO CAUSE A SIGNAL TO BE DEVELOPED THEREON; FIRST OPERATING MEANS ASSOCIATED WITH THE FIRST RADIATIONEMISSIVE ELEMENT TO CAUSE SAID ELEMENT TO EMIT RADIATION IN RESPONSE TO AN EMISSION OF RADIATION FROM THE SIGNAL INPUT MEANS; A SECOND RADIATION-EMISSIVE ELEMENT CONTROLLED BY SAID FIRST OPERATING MEANS; AND SECOND OPERATING MEANS INCLUDING FIRST AND SECOND PARALLEL-CONNECTED ELECTRO-OPTICAL PAIRS OF ELEMENTS, EACH PAIR CONSISTING OF FURTHER RADIATION-EMISSIVE ELEMENT AND A FURTHER RADIATION-EMISSIVE AND OPERABLE TO CONTROL THE FIRST RADIATION-EMISSIVE ELEMENT TO TERMINATE THE EMISSION OF RADIATION THEREBY AFTER A PREDETERMINED INTERVAL OF TIME.