Electron gun electrode for a color picture tube

Details Electron gun electrode for a color picture tube Electron gun electrode for a color picture tube

1988-01-25

1989-12-12

DeMeo, Palmer C.

Electric lamp and discharge devices

Cathode ray tube

Plural beam generating or control

313447, 313448, H01J 2948, H01J 2902

Patent

active

048869988

ABSTRACT:
An electrode of a color picture tube electron gun with a recess provided on the periphery of an electron beam pass aperture, characterized in that the electrode has a thickness of 0.4 to 1.0 times the diameter of the electron beam pass aperture at the portion at which the recess is to be formed and a thickness of 0.1 to 0.2 times the diameter of the electron beam pass aperture at the recessed portion, and the sheet material for the electrode is subjected to plastic working so that the recess forming surface has a thickness of 25 to 50% the thickness of the sheet material or a projection and/or a groove having a section with steeply inclined side portions is provided on both sides of the recess at least in the direction of the width of the recess approximate to the diameter of the electron beam pass aperture.

REFERENCES:
patent: 3767953 (1973-10-01), Bossers
patent: 4251747 (1981-02-01), Burdick
patent: 4628224 (1986-12-01), Collins et al.

Affiliated with

Also associated with

Rating

Electron gun electrode for a color picture tube does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electron gun electrode for a color picture tube, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electron gun electrode for a color picture tube will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2123356