Unitized electron gun having electrodes with internal...

Details Unitized electron gun having electrodes with internal... Unitized electron gun having electrodes with internal...

H - Electricity

01

J

313/35.33

H01J 29/48 (2006.01) H01J 29/50 (2006.01) H01J 29/62 (2006.01)

Patent

CA 1068323

ABSTRACT OF THE DISCLOSURE This disclosure depicts and describes unitized electron guns for color television cathode ray tubes, and is particularly addressed to an improved structural design for elongated electrodes of such guns in which undesired internal interaction between adjacent electron beam-forming fields is prevented. This sheet metal electrode design also has the advantage of lending itself to economical manufacture. A relatively axially long unitized electron gun electrode is provided comprising a combination of two outside sheet metal parts and at least one inside sheet metal part. The combination is axially arranged and conjoined to define three effectively continuous, electrically shielding beam passing tubes extending completely through the electrode, each tube being formed by a contiguous axial succession of deep- drawn annular lips drawn integrally from the inside and outside metal parts.

264083

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