Reflectance-type motion picture camera

Claim 1

IN A MOTION PICTURE CAMERA INCLUDING, A HOUSING HAVING A LIGHT-TIGHT FILM COMPARTMENT AND A LENS COMPARTMENT SEPARATED FROM ONE ANOTHER BY A WALL CONTAINING A FRAMING APERTURE, A DRIVE MECHANISM, A FILM STORAGE REEL AND A FILM TAKE-UP REEL MOUNTED FOR INDEPENDENT RELATIVE ROTATIONAL MOVEMENT WITHIN THE FILM COMPARTMENT, FILM TRANSPORT MEANS OPERATIVELY CONNECTED TO THE DRIVE MECHANISM AND MOUNTED FOR ROTATION WITHIN THE FILM COMPARTMENT ADAPTED TO DRAW FILM FROM THE STORAGE REEL AND DELIVER SAME TO THE TAKE-UP REEL PAST THE FRAMING APERTURE, FILM TENSIONING MEANS OPERATIVELY INTERCONNECTING THE DRIVE MECHANISM AND THE TAKE-UP SPOOL ADAPTED TO MAINTAIN THE FILM SPOOLED ON THE LATTER UNDER CONSTANT TENSION, AND A LENS SYSTEM MOUNTED WITHIN THE LENS COMPARTMENT IN POSITION TO RECEIVE AN IMAGE FROM AN EXTERIOR LIGHT SOURCE AND FOCUS SAME ON THE FILM THROUGH THE FRAMING APERTURE, THE IMPROVED COMBINATION WHICH COMPRISES AN APERTURED ROTATABLE SHUTTER MECHANISM OPERATIVELY CONNECTED TO THE DRIVE MECHANISM AND ADAPTED UPON ACTUATION TO INTERMITTENTLY UNCOVER THE FRAMING APERTURE AT PREDETERMINED INTERVALS, AND REFLECTANCE MEANS OPERATIVELY CONNECTED TO THE DRIVE MECHANISM AND ADAPTED TO MOVE THE IMAGE ACROSS THE FRAMING APERTURE DURING THE INTERVAL THE SHUTTER MECHANISM IS OPEN IN SYNCHRONIZATION WITH THE MOVEMENT OF THE FILM, SAID REFLECTANCE MEANS COMPRISING A MIRROR HAVING AT LEAST ONE PLANE POLISHED FACE MOUNTED FOR LIMITED ANGULAR MOVEMENT IN THE PATH OF THE IMAGE ENTERING THE LENS COMPARTMENT ABOUT AN AXIS LOCATED TO REFLECT THE LATTER THROUGH THE FRAMING APERTURE ONTO THE FILM AS IT MOVES, AND A SYNCHRONOUS COUPLING PROVIDIG A POSITION MECHANICAL CONNECTION BETWEEN THE MIRROR AND DRIVE MECHANISM ADAPTED TO MOVE A PLANE POLISHED FACE OF THE MIRROR THROUGH THE LIMITED ANGLE REQUIRED FOR THE IMAGE REFLECTED THEREFROM THE FOLLOW THE FILM MOVEMENT ACROSS THE FRAMING APERTURE EACH TIME THE SHUTTER MECHANISM UNCOVERS THE LATTER DURING THE MAXIMUM TIME INTERVAL SAID SHUTTER IS OPEN.