| 摘要 |
<p>The invention relates to accumulation target pick-up tubes for television cameras. The pick-up tube comprises a main cathode (K1) heated by a main filament (F1) so as to permit the scanning of the target by an electron beam over n pick-up lines. Moreover, the pick-up tube comprises an additional cathode (K2) heated by an additional filament (F2), this additional cathode is placed adjacent to the main cathode so as to permit the scanning of the interlines and avoid flickering. Application to television cameras. <IMAGE></p> |
