Title:
CATHODE-HEATING DEVICE FOR ELECTRON-RAY TUBE
Document Type and Number:
WIPO Patent Application WO/1991/003831
Kind Code:
A1
Abstract:
A cathode-heating device comprises an emitter (1) secured on central sections (3) of at least two filament-like heating elements (4), whose peripheral sections (5) are oriented at the same sharp angle (alpha) to the longitudinal geometrical axis (2) of the emitter (1) and are secured by their ends to current supply buses (6). The ends of the peripheral sections (5) are located at the vertices of a polygon with two mutually perpendicular axes (8, 9) of symmetry, one of which passes through the axes of the current supply buses (6) and whose intersection point lies on the axis (2) of the emitter (1).
Inventors:
BABICH OLGERD IVANOVICH (SU)
DEMCHENKO NIKOLAI NIKOLAEVICH (SU)
OSAULENKO NIKOLAI FEDOROVICH (SU)
SHUTOVSKY VLADISLAV VLADIMIROV (SU)
ZUBAKINA TATYANA ALEXEEVNA (SU)
DEMCHENKO NIKOLAI NIKOLAEVICH (SU)
OSAULENKO NIKOLAI FEDOROVICH (SU)
SHUTOVSKY VLADISLAV VLADIMIROV (SU)
ZUBAKINA TATYANA ALEXEEVNA (SU)
Application Number:
PCT/SU1989/000229
Publication Date:
March 21, 1991
Filing Date:
August 29, 1989
Export Citation:
Assignee:
BABICH OLGERD IVANOVICH (SU)
DEMCHENKO NIKOLAI NIKOLAEVICH (SU)
OSAULENKO NIKOLAI FEDOROVICH (SU)
SHUTOVSKY VLADISLAV VLADIMIROV (SU)
ZUBAKINA TATYANA ALEXEEVNA (SU)
DEMCHENKO NIKOLAI NIKOLAEVICH (SU)
OSAULENKO NIKOLAI FEDOROVICH (SU)
SHUTOVSKY VLADISLAV VLADIMIROV (SU)
ZUBAKINA TATYANA ALEXEEVNA (SU)
International Classes:
H01J1/16; H01J1/22; (IPC1-7): H01J1/15
Foreign References:
| US4193013A | 1980-03-11 | |||
| EP0207772A2 | 1987-01-07 | |||
| US3689794A | 1972-09-05 | |||
| SU873302A1 | 1981-10-15 |
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