A novel tri-color pick-up tube for use in a single tube color TV camera

A novel tri-color pick-up tube which has the ability to simultaneously generate three independent video signals with a single tube has been successfully developed for use in a single tube color TV camera. The target consists of three sets of 216 color-sensitive striped electrodes corresponding to the red, green and blue striped filters. The striped electrodes of SnO₂ are precisely delineated by sputter-etching through a chromium mask and connected by the multilayered interconnection method. Cameras utilizing this new pick-up tube exhibited excellent performance owing to the target structure. That is, the hue of reproduced picture was natural and faithful to that of the original scene and the camera was easy to handle and stable in operation. The size was 125mm × 105mm × 310mm and the weight was 3.9kg.