1. IN A SHUTTER ACTUATING DEVICE, THE COMBINATION COMPRISING A LIGHT SOURCE, A SHUTTER MEMBER MOVABLE RELATIVE TO A PREDETERMINED LIGHT PATH EMANATING FROM SAID LIGHT SOURCE, A PIEZOELECTRIC ELEMENT MOUNTED AT ONE END AND HAVING A FREE END ON WHICH SAID SHUTTER MEMBER IS MOUNTED, A FIRST ELECTRODE SECURED TO THE SIDE OF SAID ELEMENT ON WHICH SAID SHUTTER MEMBER IS MOUNTED, A SECOND ELECTRODE SECURED TO THE OTHER AND OPPOSITE SIDE OF SAID ELEMENT, SAID ELECTRODES EXTENDING SUBSTANTIALLY BETWEEN SAID SHUTTER MEMBER AND THE POINT AT WHICH SAID ELEMENT IS MOUNTED, AND MEANS FOR APPLYING AN ELECTROMOTIVE FORCE TO SAID ELECTRODES TO ESTABLISH AN ELECTRICAL FIELD ACROSS SAID FIELD CAUSING SAID ELEMENT TO FLEX AS A CANTILEVER SO AS TO MOVE SAID SHUTTER MEMBER RELATIVE TO SAID LIGHT PATH.