A new color camera using a single pickup tube

A color TV camera system using a single pickup tube is described, together with the new vidicon developed for it. Color separation is accomplished by a pair of fine-striped color filters in effective optical contact with the vidicon target. The stripe widths and the angles the stripes make with respect to the scan direction are such that the red and blue images are modulated onto different carrier frequencies, the phases of which change 180° between successive scan lines. Signals from two successive lines are added, subtracted, and matrixed to give three primary-color signals, with better resolution than is obtained from other one-tube color cameras.