Mask focusing color picture tube

Details Mask focusing color picture tube Mask focusing color picture tube

1984-12-27

1986-12-02

DeMeo, Palmer C.

Electric lamp and discharge devices

Cathode ray tube

Shadow mask, support or shield

313408, H01J 2981

Patent

active

046267379

ABSTRACT:
A mask-focusing color picture tube comprising an evacuated envelope; means to generate a number of electron beams; a display screen comprising a large number of phosphor stripes luminescing in different colors; a plurality of masks being spaced in the predetermined distance each other, individually having a number of apertures which is arranged in rows and being disposed in the vicinity of said screen, each electron beam being assigned to phosphor stripe of a respective color through said corresponding mask aperture, the improvement comprising, at least one of said plurality of masks having a plurality of projections on at least one side of said mask, said projections being separated each other by the rows of said apertures.

REFERENCES:
patent: 3574013 (1971-04-01), Frantzen
patent: 4066923 (1978-01-01), van Esdonk
patent: 4300069 (1981-11-01), Nolan
patent: 4392914 (1983-07-01), Takenaka et al.
patent: 4427918 (1984-01-01), Lipp
patent: 4503355 (1985-03-01), Kamohara

Affiliated with

Also associated with

Rating

Mask focusing 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 Mask focusing color picture tube, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mask focusing color picture tube will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2294620