Color display system utilizing double quadrupole lenses under op

Details Color display system utilizing double quadrupole lenses under op Color display system utilizing double quadrupole lenses under op

1997-07-29

1999-08-10

Patidar, Jay M.

Electric lamp and discharge devices

Cathode ray tube

Plural beam generating or control

313412, 313449, H01J 2948

Patent

active

059363380

ABSTRACT:
A color display system includes a color cathode ray tube having an electron gun having at least a cathode, a control electrode, an accelerating electrode, a focus electrode and an anode. The focus electrode includes a first focus electrode, a second focus electrode and a third focus electrode. The first focus electrode faces the accelerating electrode, a first quadrupole lens is formed in at least one of opposing ends of the first and second focus electrodes. A second quadrupole lens is formed in at least one of opposing ends of the second focus electrode on the third focus electrode side and a portion of the third focus electrode on the second focus electrode side, and the second quadrupole lens is formed of at least one pair of plate electrodes extending along the tube axis and facing each other across the electron beams, wherein a dynamic focus voltage varying with deflection of electron beams is applied to the first and third focus electrodes so that the first quadrupole lens produces horizontally diverging and vertically focusing actions on the electron beams and the second quadrupole lens produces horizontally focusing and vertically diverging actions on the electron beams, and a dynamic differential focus voltage Dv and a voltage Av applied to the accelerating electrode satisfy the following inequality, 0.2.ltoreq.Dv/Av.ltoreq.4.

REFERENCES:
patent: 4728859 (1988-03-01), Natsuhara et al.
patent: 5162695 (1992-11-01), Shimona et al.
patent: 5404071 (1995-04-01), Son
2320 Proceedings of the Society for Information Display (SID); 29 (1988) No. 1, New York, NY, USA; An In-Line Color CRT With Dynamic Beam Shaping for Data Display; pp. 41-45.

Affiliated with

Also associated with

Rating

Color display system utilizing double quadrupole lenses under op 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 display system utilizing double quadrupole lenses under op, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Color display system utilizing double quadrupole lenses under op will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1122862