Photosensitive facsimile transmitter light assembly

Claim 1

A FACSIMILE TRANSMITTER LIGHT ASSEMBLY COMPRISING A FRAME, A SCANNING PLATE HAVING A LONG NARROW LIGHT TRANSMITTING SLOT THEREIN DEFINING A SCANNING AREA, THE PLATE CARRIED BY THE FRAME, OPTICAL LIGHT PICK-UP MEANS HAVING ITS FIELD OF VIEW DIRECTED AT THE SCANNING AREA AND POSITIONED ON THE FRAME SUBSTANTIALLY NORMAL TO THE SCANNING AREA, A PAIR OF FRAME SUBSTANTIALLY NORMAL TO THE SCANNING EDGES OF THE SCANNING PLATE, A PAIR OF FIXED POSITION CONCENTRATED FILAMENT INCANDESCENT LAMPS PROVIDING LIGHT SOURCES, EACH OF THE LAMPS FIXEDLY CARRIED BY THE FRAME EXTENSIONS AT OPPOSITE ENDS OF THE SCANNING LINE, AND A SEGMENTAL CYLINDRICAL REFLECTOR CARRIED BY THE FRAME, THE REFLECTOR HAVING A CROSS SECTION AT LEAST APPROXIMATING A SECTION OF AN ELLIPSE, THE LINE OF THE CENTERS OF THE LAMPS POSITIONED ALONG THE FIRST FOCAL AXIS OF THE REFLECTOR AND PARALLEL TO THE LONGITUDINAL AXIS OF THE SCANNING AREA, THE REFLECTOR SO POSITIONED THAT ITS ALTERNATE FOCUS IS SUBSTANTIALLY ALONG THE CONTINUOUS ILLUMINATION IS PRODUCED ON THE THAT A LINE OF CONTINUOUS ILLUMINATION IS PRODUCED ON THE SCANNING AREA, THE WIDTH OF THE LINE OF CONTINUOUS ILLUMINATION BEING APPROXIMATELY THE SAME WIDTH AS THE FILAMENT OF THE LIGHT SOURCE.