Abstract: A color pick up tube having a target structure comprising a transparent substrate a plurality of red, green and blue optical strip filters, each having a width F, mounted interleavely on one surface of the substrate, a thin glass layer, having a thickness T, mounted on the optical strips, a plurality of optically transparent, electrically conductive strips each having a width N, laid down on the thin glass layer such that each conductive strip corresponds to a respectively different optical strip.In order to prevent optical color cross talk, the widths F, N and the thickness T have the following relationship ##EQU1## WHERE .theta. IS THE INCIDENT ANGLE IN THE GLASS LAYER.