Electric lamp and discharge devices – With luminescent solid or liquid material – Vacuum-type tube
Patent
1997-10-14
1999-09-28
Patel, Vip
Electric lamp and discharge devices
With luminescent solid or liquid material
Vacuum-type tube
313336, H01J 130
Patent
active
059594004
ABSTRACT:
The present invention relates to an electron tube having a configuration which can maintain its operating stability for a long period of time. The electron tube comprises, at least, a field emitter which is made of diamond or a material mainly composed of diamond and has a surface terminated with hydrogen, and a sealed envelope for accommodating the diamond field emitter. Due to the hydrogen termination, the electron affinity of the diamond field emitter is set to a negative state. Also, hydrogen is enclosed within the sealed envelope. Due to this configuration, the hydrogen-terminated state of the diamond field emitter surface is stabilized, and the electron affinity of the diamond emitter is restrained from changing for a long period of time.
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Hirohata Toru
Kan Hirofumi
Niigaki Minoru
Yamada Masami
Gerike Matthew J.
Hamamatsu Photonics K.K.
Patel Vip
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