Electric lamp and discharge devices – Discharge devices having a thermionic or emissive cathode
Patent
1991-11-25
1994-02-22
Yusko, Donald J.
Electric lamp and discharge devices
Discharge devices having a thermionic or emissive cathode
313275, 313279, 313292, 313308, 313447, 313457, H01J 1912
Patent
active
052890783
ABSTRACT:
An electron source includes: linear thermionic cathodes for emitting electron beams; an electron beam lead-out electrode which is disposed substantially in a parallel relationship with the linear thermionic cathodes and is formed with apertures for passing the electron beams therethrough; and a plurality of support members for supporting the linear thermionic cathodes each of which has a contact portion held in contact with at least a portion of the linear thermionic cathodes; wherein each of the apertures of the elctron beam lead-out electrodes is disposed so as to confront the contact portion of the support member.
REFERENCES:
patent: Re31876 (1985-04-01), Watanabe et al.
patent: 4804887 (1989-02-01), Miyama et al.
patent: 4887000 (1989-12-01), Yamazaki et al.
Hashiguchi Jumpei
Kitao Satoshi
Murai Ryuichi
Nonomura Kinzo
Matsushita Electric - Industrial Co., Ltd.
Patel Ashok
Yusko Donald J.
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