公开(公告)号：US3735186A

公开(公告)日：1973-05-22

申请号：US12285171

申请日：1971-03-10

Applicant: PHILIPS CORP

Inventor： KLOPFER A ,  DITTMER G

IPC: H01J1/304 ,  H01J1/30 ,  H01J1/02 ,  H01J31/08

CPC classification number: H01J1/3042 ,  H01J2201/30403

Abstract: A field emission cathode comprises a glass substrate in combination with an insulating layer sandwiched between two conducting layers functioning as electrodes. Cavities extending through one of the electrodes and the insulating layer to the surface of the other electrode contain highly compacted and porous electron emissive layers which provide high electrical resistance between said electrodes and are diffused with metallic gold to form needle-shaped metal deposits on the surface as well as within the emissive layers. Such cathodes are used in image converters and image display tubes.

Abstract translation: 场发射阴极包括与夹在用作电极的两个导电层之间的绝缘层组合的玻璃基板。 通过电极和绝缘层中的一个延伸到另一个电极的表面的腔包含高度压实和多孔的电子发射层，其在所述电极之间提供高电阻并且与金属金扩散以在表面上形成针状金属沉积物 以及在发射层内。 这种阴极用于图像转换器和图像显示管中。