Process and apparatus for producing variable area records on lenticular films

Claim 1

A PROCESS FOR THE PRODUCTION OF VARIABLE AREA RECORDINGS ON LENTICULAR FILM COMPRISING THE STEPS OF EMPLOYING A TRANSPARENT SENSITIZED PHOTOGRAPHIC ELEMENT HAVING A SENSTIZIED LAYER ON ONE SIDE AND CYLINDRICAL LENTICULATIONS ON THE SIDE OPPOSITE THE SENSITIZED LAYER AND WHCIH AFTER EXPOSURE MAY BE DEVELOPED TO A HIGH GAMMA VALUE; PLACING IN DIRECT CONTACT EITH THE CYLINDRICAL LENTICULATIONS A LINE SCREEN HAVING DIRECTED AT RIGHT ANGLES TO THE DIRECTION OF THE CYLINDRICALS LENTICULATIONS OPAQUE AND TRANSPARENT STRIPS, THE WIDTH OF THE TRANSPARENT PORTION BEING FROM 1/2 TO 7/8 THE DISTANCE BETWEEN ADJACENT LINES FROM CENTER TO CENTER; PLACING OVER SAID LINE SCREEN A NEGATIVE RECORD TO BE RECORDED ON THE SENSITIZED PHOTOGRAPHIC ELEMENT; ILLUMINATING SAID SENSITIZED LAYER THROUGH SAID LINE SCREEN AND SAID NEGATIVE RECORD BY MEANS OF A DIAPHRAGM ILLUMINATED BY A LIGHT SOURCE; AND DEVELOPING THE MATERIAL THUS EXPOSED TO A HIGH GAMA VALUE; SAID DIAPHRAGM DECREASING IN TOTAL OPACITY ALONG LINES PARALLEL TO A CENTRAL LINE FROM SAID CENTRAL LINE TOWARDS OPPOSITE SIDES, THE CENTRAL LINE BEING PARALLEL TO THE CYLINDRICAL LENTICULATIONS, AND SAID DIAPHRAGM BEING FOCUSED BY SAID LENTICULATIONS ONTO SAID SENSITIZED LAYER.