Electric lamp and discharge devices – Photosensitive – Photocathode
Patent
1985-05-21
1988-08-09
Levy, Stewart J.
Electric lamp and discharge devices
Photosensitive
Photocathode
313420, 220 21R, H01J 3518
Patent
active
047630426
ABSTRACT:
The present invention provides a vacuum envelope for a radiation image intensifying tube and a process for manufacturing same. In a vacuum envelope of the type comprising a central body, an input window made from aluminum or an aluminum alloy at one end of said central body and a transparent output window at the other end of the body, said input window comprises a peripheral skirt fitting over a ring having the same section as said skirt, and made from iron or an iron alloy, integral with the end of the body, said skirt being welded to the ring by magnetic induction welding so as to be vacuum tight.
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Welding Production, vol. 25, No. 9, Septembre 1978, pp. 19-20, Cambridge, GB; K. K. Khrenov et al.: "The Formation . . . ".
Patents Abstracts of Japan, vol. 6, No. 55 (E-101) [933], 10 Avril 1982; & JP-A-56 167 246 (Tokyo Shibaura Denki K.K.) 22-12-1981.
Colomb Gilbert
Creusot Jean P.
Rougeot Henri
"Thomson-CSF"
Levy Stewart J.
Plottel Roland
Williams Hezron E.
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