Camera with automatic diaphragm control

Claim 1

IN A CAMERA HAVING AN AUTOMATIC EXPOSURE CONTROL SYSTEM FOR REGULATING THE EXPOSURE OF FILM IN SAID CAMERA, SAID CONTROL SYSTEM COMPRISING AN ELECTRIC MEASURING INSTRUMENT, A PHOTOCELL ENERGIZABLE BY SCENE LIGHT FOR ENERGIZING SAID MEASURING INSTRUMENT, AND A MOVABLE DIAPHRAGM MEMBER RESPONSIVE TO ENERGIZATION OF SAID MEASURING INSTRUMENT FOR ESTABLISHING AN EXPOSURE OPENING AS A FUNCTION OF SCENCE BRIGHTNESS, THE COMBINATION COMPRISING: MEANS FOR TRANSMITTING SCENE LIGHT FROM THE EXTERIOR OF SAID CAMERA THROUGH A PREDETERMINED PATH TO SAID FILM; A ROTATABLE SHUTTER MEMBER HAVING RESPECTIVE CUT-OUT AND OPAQUE PORTION DISPOSED FOR SEQUENTIAL CYCLIC MOVEMENT ACROSS SAID PATH FOR CYCLICALLY INTERRUPTING SAID LIGHT WHEN SAID CAMERA IS OPERATING, SAID OPAQUE PORTION BEING POSITIONED IN SAID PATH WHEN SAID CAMERA IS IDLE; MEANS DISPOSED ON THE OPAQUE PORTION OF SAID SHUTTER MEMBER FOR DIRECTING SAID SCENE LIGHT TO SAID PHOTOCELL WHEN IT IS IN SAID PATH; MANUALLY OPERABLE MEANS MOVABLE BETWEEN AN INITIAL POSITION IN WHICH IT MAINTAINS SAID CAMERA IDLE AND A RELEASE POSITION IN WHICH IT OPERATES SAID CAMERA; AND MEANS RESPONSIVE TO MOVEMENT OF SAID MANUALLY OPERABLE MEANS INTO ITS INITIAL POSITION FOR VARYING THE SENSITIVITY OF SAID MEASURING INSTRUMENT SO THAT THE EXPOSURE OPENING ESTABLISHED BY SAID DIAPHRAGM MEMBER IS SMALLER THAN THE EXPOSURE OPENING THAT WOULD BE ESTABLISHED BY THE SAME SCENE LIGHT CONDITIONS WHEN SAID CAMERA IS OPERATING.