Control-screen electrode subassembly for an electron gun and met

Details Control-screen electrode subassembly for an electron gun and met Control-screen electrode subassembly for an electron gun and met

1981-06-23

1983-11-08

Demeo, Palmer C.

Electric lamp and discharge devices

Cathode ray tube

Ray generating or control

313456, 445 34, H01J 2946, H01J 904

Patent

active

044144857

ABSTRACT:
The present invention is an improvement in an electron gun for use in a cathode-ray tube. Such a gun includes a cathode assembly and at least two spaced successive electrodes having aligned electron beam apertures therein. The improvement comprises one of the two electrodes having a plurality of alignment apertures disposed around the periphery thereof. A plurality of insulative support assemblies are referenced to the plurality of alignment apertures and interconnected to the one electrode. Each of the support assemblies also includes at least one support plate having a locating portion which is attached to the other electrode. A method is disclosed for aligning the electron beam apertures of the two successive electrodes.

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