High definition electron gun for cathode ray tube

Details High definition electron gun for cathode ray tube High definition electron gun for cathode ray tube

2006-05-16

2006-05-16

Philogene, Haissa (Department: 2828)

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

C315S382000, C315S015000, C313S411000, C313S449000

Reexamination Certificate

active

07045976

ABSTRACT:
Electron gun for cathode ray tube comprising aligned in series along an axis XX′ an electron-emitting cathode K, electrodes G1and G2for the formation of an electron beam, a prefocusing electron lens G3, G4, G5, a first quadripolar device G7, G8electrically controlled in a dynamic manner in synchronism with the screen scan so as to correct beam focusing defects at the screen edge, a main electron lens G8–G9making it possible to focus the electron beam onto a screen.It also comprises a second quadripolar device G5, G6, G7situated between the prefocusing electron lens G3, G4and the first quadripolar device and comprising electrodes G5, G6, G7exhibiting rectangular apertures. Those of G5and G7are parallel and those of G6are orthogonal to those of G5and G7.The electrodes G5and G7are placed at a fixed polarization potential, and the electrode G6is at a polarization potential varying in synchronism with the screen scan.

REFERENCES:
patent: 5027043 (1991-06-01), Chen et al.
patent: 5055749 (1991-10-01), Chen et al.
patent: 5170101 (1992-12-01), Gorski et al.
patent: 5404071 (1995-04-01), Son
patent: 5539285 (1996-07-01), Iguchi et al.
patent: 2002/0096989 (2002-07-01), Steinhauser
patent: 2005/0052110 (2005-03-01), Gueugnon et al.
patent: 0899768 (1999-03-01), None

Affiliated with

Also associated with

Rating

High definition electron gun for cathode ray 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 High definition electron gun for cathode ray tube, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High definition electron gun for cathode ray tube will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3582889