An Automatic Additive Color Printer
Hans Chr. Wohlrab · Journal of the SMPTE · 1959
Solenoid-operated vane-type shutters in the printer control the red, green and blue beams split up from the white light by dichroic mirrors. The color light values and the fader-speed information are fed into the printer by a perforated tape, which also starts and stops the printer. Notches in, or aluminum patches on the film release the information prestored in a memory device to the light controls. Accessories and a sound printing head extend the flexibility of the printer.