Hedman & Costigan, P.C.
Electrode for electron source, method for producing the same, and electronic tube using the same
Disclosed is an electrode for an electron source, a method for producing the same, and an electronic tube using the same which provide a decreased thickness of an electron emitting source, and an improved current distribution percentage. The electronic tube comprises a substrate, an electron emitting source area formed on the substrate, and a shield area around the electron emitting area. The shield area is formed of a material that does not produce an electron emitting source, when the electron emitting source is produced by a dry method. As a result, if a space between an electron drawing electrode and the electrode for the electron source is narrow, the percentage of anode current increases in the total current, thereby improving the current distribution percentage.
Noritake Co., Ltd.
B H H H
B82Y H01J H01J H01J
inventional inventional additional inventional
Kazunori Hiromu Hiroyuki Sashiro Yukiharu Takeshi Junko Tomotaka Tsuyoshi
Tatsuda Yamada Kurachi Uemura Seko Nagasako Yotani Ezaki Maesoba