Electrode structure for electron gun

Details Electrode structure for electron gun Electrode structure for electron gun

2005-01-25

2005-01-25

Williams, Joseph (Department: 2879)

Electric lamp and discharge devices

Cathode ray tube

Ray generating or control

C313S447000, C313S458000

Reexamination Certificate

active

06847158

ABSTRACT:
An electron gun for a cathode-ray tube comprises a dish-shaped control electrode. The electrode is made from three separate components: a substantially plane component drilled with apertures so as to allow the passage of electron beams, and two identically shaped components intended to make a skirt, serving as support for the cathode modules. The three components are welded together. This structure allows the construction of a control electrode serving as support for cathode modules by virtue of inexpensive components that are simple to manufacture.

REFERENCES:
patent: 2582454 (1952-01-01), Pohle
patent: 2842702 (1958-07-01), Titcomb et al.
patent: 5574330 (1996-11-01), Matsuda et al.
patent: 5861708 (1999-01-01), Van Eck
patent: 415562 (1991-03-01), None
patent: 834.085 (1938-11-01), None

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