Photographic reproduction apparatus

Claim 1

IN A PHOTOGRAPHIC REPRODUCING APPARATUS, IN COMBINATION, MEANS FOR DIRECTING LIGHT FROM A FIRST LIGHT SOURCE THROUGH A TRANSPARENCY ONTO A LIGHT SENSITIVE SHEET; MEANS FOR DIRECTING LIGHT FROM A SECOND LIGHT SOURCE ONTO THE LIGHT SENSITIVE SHEET WITHOUT PASSING THROUGH THE TRANSPARENCY; ADJUSTABLE LIGHT LIMITING MEANS COOPERATING WITH SAID SECOND LIGHT SOURCE FOR REGULATING THE AMOUNT OF LIGHT RECEIVED BY SAID SHEET FROM SAID SECOND LIGHT SOURCE; FIRST ADJUSTING MEANS OPERATIVELY CONNECTED TO SAID ADJUSTABLE LIGHT LIMITING MEANS FOR SETTING THE LATTER IN ACCORDANCE WITH THE DEGREE OF CONTRAST DESIRED IN THE PHOTOGRAPHIC REPRODUCTION MADE ON THE LIGHT SENSITIVE SHEET, SAID FIRST ADJUSTING MEANS BEING SEPARATELY ADJUSTABLE; AND SECOND ADJUSTING MEANS COOPERATING WITH SAID FIRST ADJUSTING MEANS FOR ADJUSTING THE LATER IN ACCORDANCE WITH THE CONTRAST CHARACTERISTICS OF THE LIGHT SENSITIVE SHEET SO THAT THE SETTING OF SAID ADJUSTABLE LIGHT LIMITING MEANS IS DETERMINED BY BOTH SAID FIRST AND SAID SECOND ADJUSTING MEANS, SAID FIRST AND SECOND ADJUSTING MEANS COOPERATING MUTUALLY ONE WITH THE OTHER FOR ADJUSTING THE RATES AT WHICH ADJUSTMENTS ARE MADE BY SAID FIRST AND SECOND ADJUSTING MEANS.