Electronic gun for color cathode-ray tube

Details Electronic gun for color cathode-ray tube Electronic gun for color cathode-ray tube

1993-09-28

1997-01-07

O'Shea, Sandra L.

Electric lamp and discharge devices

Cathode ray tube

Ray generating or control

313412, 313414, 313446, H01J 2950, H01J 2946

Patent

active

055920462

ABSTRACT:
An electron gun for a color cathode-ray tube reducing the spherical aberration and the flying spot aberration, thus improving the resolution of the color cathode-ray tube. The electron gun comprises a pair of accelerating/focusing electrodes coaxial with the tube and providing a passage for the electron beams. The electrodes are spaced apart from each other by a predetermined distance and has individual common openings, and each includes an envelop having a rim adjacent a corresponding common opening, the rim surrounding the plurality of electron beams and defining the common opening, and a control electrode plate being placed in the envelop and recessed from the rim by a predetermined distance in the axial direction in order for controlling the plurality of electron beams. Each electrode plate has a center opening and a pair of opposed outer openings. The center opening may be a rectangular opening or rounded at its upper and lower ends. The outer openings are disposed at opposed sides of the center opening and each opening toward an inner surface of the envelop. The open space of the outer opening may be gradually enlarged toward the inner surface of the envelop.

REFERENCES:
patent: 5038073 (1991-08-01), Son
patent: 5113112 (1992-05-01), Shimoma
patent: 5146133 (1992-09-01), Shirai

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1767083