Cathode ray tube having a small-diameter neck and method of manu

Details Cathode ray tube having a small-diameter neck and method of manu Cathode ray tube having a small-diameter neck and method of manu

1995-08-30

1998-10-06

Patel, Ashok

Electric lamp and discharge devices

With envelope

Having base and connector

315447HC, 31531801, H01R 1346

Patent

active

058181555

ABSTRACT:
A cathode ray tube has a vacuum envelope formed of a panel portion supporting a phosphor film on an inner surface thereof, a neck housing an electron gun, a funnel joining the panel and the neck, and a stem sealing an open end of the neck and mounting the electron gun via a plurality of pins extending through the stem. The inside diameters at the open end sealed by the stem and vicinities thereof become gradually larger toward the open end sealed by the stem, or retain at least a value substantially equal to an inside diameter of a major portion of the neck.

REFERENCES:
patent: 4040707 (1977-08-01), Pisano
patent: 4040708 (1977-08-01), Neuber et al.
patent: 4050763 (1977-09-01), Smithgall
patent: 4599534 (1986-07-01), Shirai et al.
patent: 4772827 (1988-09-01), Osakabe

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