公开(公告)号：US3746904A

公开(公告)日：1973-07-17

申请号：US3746904D

申请日：1971-05-07

Applicant: RCA CORP

Inventor： TORRE A

IPC: H01J29/88 ,  H01J31/20 ,  H01J29/00 ,  H01J31/00

CPC classification number: H01J31/205 ,  H01J29/88 ,  H01J2229/882

Abstract: A cathode-ray tube including a glass envelope having a forward portion terminating in a viewing screen, a center portion, and a rear portion including an electron-gun assembly having at least one focusing lens therein. A first external conductive coating is on the forward portion of the envelope, and a second conductive coating spaced from the first conductive coating is on the rear portion of the envelope at least over the focusing lens. A longitudinal strip of a third external conductive coating on the center portion of the envelope connects the first and second conductive coatings.

Abstract translation: 一种包括玻璃外壳的阴极射线管，其具有终止在观察屏幕中的前部，中心部分和后部，其包括其中具有至少一个聚焦透镜的电子枪组件。 第一外部导电涂层位于外壳的前部，并且与第一导电涂层间隔开的第二导电涂层至少在聚焦透镜的上方位于外壳的后部。 在外壳的中心部分上的第三外部导电涂层的纵向条带连接第一和第二导电涂层。