Cathode structure for a cathode ray tube

Details Cathode structure for a cathode ray tube Cathode structure for a cathode ray tube

1991-12-17

1994-02-22

Yusko, Donald J.

Electric lamp and discharge devices

With temperature modifier

For filament or heated cathode

313 45, 313 46, 313239, 313270, 313337, 313346R, H01J 124

Patent

active

052890767

ABSTRACT:
A cathode structure for supporting a cathode sleeve of a cathode ray tube includes a plurality of metal ribbons for supporting the cathode sleeve, where one end of a ribbon is fixed to an upper end of the cathode sleeve and the other end of the same ribbon is fixed to an upper end of a cathode holder, that allows thermal expansion of the cathode sleeve to occur towards the cathode holder, and maintain a constant distance between a cathode cup on the cathode sleeve and a first electrode of an electron gun.

REFERENCES:
patent: 2833952 (1958-05-01), Hemphill et al.
patent: 3354340 (1967-11-01), Almer et al.

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