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公开(公告)号：US3758809A
公开(公告)日：1973-09-11
申请号：US3758809D
申请日：1971-12-03
Applicant: ITT
CPC classification number: H01J9/022 , H01J1/30 , H01J17/066 , H01J2893/0066
Abstract: An emissive electrode of the type utilized in fluorescent lamps and a method for making such an electrode. The electrode includes a fused pellet and a metal lead extending from the bottom surface thereof. The pellet contains a fused mixture of electron emissive material and a metal having a high melting point and a low vapor pressure. The pellet has a bulk density gradient structure wherein the interior portions and exterior bottom and side portions thereof have a high bulk density relative to the bulk density of the exterior top portion of the pellet, and the exterior bottom and side surfaces of the pellet are smooth re1ative to the exterior top surface thereof. The pellet is formed by mixing a powder of said metal with a powder of said electron emissive material, compressing said mixed powder and heating it in a mold until an exothermic reaction occurs.
Abstract translation: 用于荧光灯的发射电极和制造这种电极的方法。 电极包括熔融颗粒和从其底表面延伸的金属引线。 颗粒包含电子发射材料和具有高熔点和低蒸气压的金属的熔融混合物。 颗粒具有体积密度梯度结构，其中内部和外部底部和侧部具有相对于颗粒的外部顶部的堆积密度的高堆积密度，并且颗粒的外部底部和侧表面是平滑的 与其外表面相反。 通过将所述金属的粉末与所述电子发射材料的粉末混合，压缩所述混合粉末并在模具中加热，直到发生放热反应来形成颗粒。
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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
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。
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