Color cathode ray tube having an improved first grid electrode

Details Color cathode ray tube having an improved first grid electrode Color cathode ray tube having an improved first grid electrode

1997-08-25

1999-02-16

Patel, Vip

Electric lamp and discharge devices

Cathode ray tube

Ray generating or control

313270, H01J 2946

Patent

active

058724230

ABSTRACT:
A color cathode ray tube includes a panel portion having a phosphor screen on its inside surface and suspending a shadow mask hanged closely spaced from the phosphor screen, a neck portion for housing an electron gun, and a funnel portion for connecting the panel portion to the neck portion. The electron gun is composed of a first plurality of grid electrodes spaced specified distances apart and arranged axially in a specified order, respectively, and fixed by insulating rods embedding the first plurality of grid electrodes therein, including a cup-shaped first grid electrode having a second plurality of in-line electron beam apertures in a bottom thereof and having the second plurality of cathodes incorporated therein. The cup-shaped first grid electrode is embedded in the insulating rods through metal tabs fixed thereto, and a thermal expansion coefficient T1 of the metal tabs and a thermal expansion coefficient T2 of the cup-shaped first grid electrode satisfy the following inequality, T1>T2.

REFERENCES:
patent: 4071803 (1978-01-01), Takanashi et al.

Affiliated with

Also associated with

Rating

Color cathode ray tube having an improved first grid electrode does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Color cathode ray tube having an improved first grid electrode, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Color cathode ray tube having an improved first grid electrode will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2065098