公开(公告)号：US3718831A

公开(公告)日：1973-02-27

申请号：US3718831D

申请日：1972-03-31

Applicant: ITT

Inventor： MENELLY R ,  BUTTER D ,  KERN E

IPC: H01J61/067 ,  H01J1/30 ,  H01J1/38

CPC classification number: H01J61/067

Abstract: An emissive electrode of the type utilized in fluorescent lamps having a conic section cavity formed therein, said electrode having a bulk density gradient structure. The electrode includes a fused pellet and a metal lead extending therefrom. The pellet contains a fused mixture of electron emissive material and a metal having a high melting point and a low vapor pressure at the operating temperature of the lamp.

Abstract translation: 在其中形成有锥形截面腔室的荧光灯中使用的发射电极，所述电极具有体积密度梯度结构。 电极包括熔融颗粒和从其延伸的金属引线。 颗粒包含电子发射材料和在灯的工作温度下具有高熔点和低蒸气压的金属的熔融混合物。