Electric lamp and discharge devices – Discharge devices having a thermionic or emissive cathode
Patent
1995-03-16
1996-11-26
Oberley, Alvin E.
Electric lamp and discharge devices
Discharge devices having a thermionic or emissive cathode
H01J 100
Patent
active
055788971
ABSTRACT:
A multi-electron source has a plurality of electron emitting portions arranged on a substrate. Each electron emitting portion comprises a conductive film containing a crack with an average width of 0.05 .mu.m to 1 .mu.m. The electron emitting portions are prepared by subjecting conductive films, preferably of fine particles, to a pulse voltage application treatment.
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patent: 5066883 (1991-11-01), Yoshioka et al.
patent: 5155416 (1992-10-01), Suzuki et al.
patent: 5304815 (1994-04-01), Suzuki et al.
Banno Yoshikazu
Iwai Kumi
Kaneko Tetsuya
Nomura Ichiro
Takeda Toshihiko
Canon Kabushiki Kaisha
Oberley Alvin E.
Richardson Lawrence O.
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