Exposure control system

Claim 1

PHOTOGRAPHIC EXPOSURE APPARATUS COMPRISING IN COMBINATION: (A) A TRANSPARENT PLATEN FOR SUPPORTING AN IMAGE TRANSPARENCY TO BE REPRODUCED; (B) MEANS FOR SUPPORTING A LIGHT SENSITIVE DUPLICATING MATERIAL IN OVERLYING CONTACT WITH SAID IMAGE TRANSPARENCY; (C) LAMP HOUSE MEANS DEFINING AN APERTURE SLIT POSITIONED TO ILLUMINATE AN INCREMENTAL AREA ON SAID IMAGE TRANSPARENCY, SAID LAMP HOUSE MEANS COMPRISING: (1) AN ULTRAVIOLET EXPOSING LIGHT, (2) A RED SENSING LIGHT, AND (3) A DICHORIC MIRROR OPTICALLY POSITIONED TO REFLECT SAID ULTRAVIOLET LIGHT AND CONDUCT SAID RED LIGHT THROUGH SAID SLIT; (D) A RED COLORED MEMBER POSITIONED IN SURFACE CONTACT WITH SAID DUPLICATING MATERIAL, SAID RED COLORED MEMBER BEING OPERATIVELY CONNECTED TO SAID LAMP HOUSE MEANS FOR MOVEMENT THEREWITH; (E) AN ARRAY OF LIGHT SENSORS OPTICALLY POSITIONED WITHIN SAID RED COLORED MEMBER TO RECEIVE THE RED SENSING LIGHT ILLUMINATED FROM THE SLIT IN SAID LAMP HOUSE HOUSE MEANS; AND (F) CIRCUIT MEANS RESPONSIVE TO THE INTENSITY OF SAID RED SENSING LIGHT AS DETERMINED BY SAID SENSORS FOR MODULATING THE INTENSITY OF SAID ULTRAVIOLET EXPOSING LIGHT.