| 摘要 |
<p>A method of manufacturing a cathode ray tube comprising an electron gun (3) having a number of electrodes (7, 8) and a resistive-layer lens system (5), characterized in that the electron gun is sparked in a manufacturing step in which a pulse voltage is applied to an electrode (8) and a direct voltage is applied to a part of the resistive-layer lens system (9) adjacent to said electrode through supply leads, and measures are taken to prevent the occurrence of sparks in the resistive-layer lens system (5) per se. As a result thereof, the resistive-layer lens system (5) remains undamaged. <IMAGE></p> |
