Inline electron gun having at least one modified cathode assembl

Details Inline electron gun having at least one modified cathode assembl Inline electron gun having at least one modified cathode assembl

1984-05-21

1988-11-01

Moore, David K.

Electric lamp and discharge devices

Cathode ray tube

Plural beam generating or control

313447, 313417, 313270, 313345, 313337, H01J 2902

Patent

active

047822635

ABSTRACT:
An inline electron gun for a cathode-ray tube has three cathode assemblies each including a cathode sleeve having a cathode cap closing one end of the sleeve and extending therealong. Each cap has an electron emissive coating thereon and a heater is disposed within each sleeve. The center cathode assembly has a laminated bimetal cathode cap comprising a first layer integral with the sleeve and an overlying second layer with a sidewall portion that is shorter than the sidewall portions of the two outer cathode caps of the outer cathode assemblies. The center cap thus has less thermal mass than the outer caps and the center cathode assembly therefore reaches electron emission temperature before the outer cathode assemblies.

REFERENCES:
patent: 3569768 (1971-03-01), Benda
patent: 3772554 (1973-11-01), Hughes
patent: 3972414 (1976-08-01), Buescher et al.
patent: 4000435 (1976-12-01), Jariwala
patent: 4063128 (1977-12-01), Hughes
U.S. patent application Ser. No. 556,184, filed by R. E. Schlack on Nov. 29, 1983, entitled, "Cathode-Ray Tube Having an Electron Gun Assembly with Emissivity Modifying Means".
U.S. Published patent application No. B393,970 issued on 1/28/75 to Floyd K. Collins, et al, titled CARBIDE STRUCTURE FOR CATHODE RAY TUBE.

Affiliated with

Also associated with

Rating

Inline electron gun having at least one modified cathode assembl does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Inline electron gun having at least one modified cathode assembl, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Inline electron gun having at least one modified cathode assembl will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-892604