Color display tube, deflection system and electron gun

Details Color display tube, deflection system and electron gun Color display tube, deflection system and electron gun

1989-10-24

1991-05-21

Blum, Theodore M.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

313412, H01J 2970, H01J 2976

Patent

active

050178431

ABSTRACT:
A color display tube having an in-line electron gun 5 and a deflection system 13. The deflection system 13 generates deflection fields having an astigmatic character, such that in a state-of-the-art electron gun overconvergence of the electron beams occurs on the display window. In a color display tube according to the invention, the electron gun 5 is changed such that this overconvergence is compensated by an underconvergence generated in the electron gun. The horizontal spot enlargement factor is reduced by the less astigmatic character of the deflection fields.

REFERENCES:
patent: 4172309 (1979-10-01), Chiodi
patent: 4771216 (1988-09-01), Blacker et al.

Affiliated with

Also associated with

Rating

Color display tube, deflection system and electron gun 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 tube, deflection system and electron gun, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Color display tube, deflection system and electron gun will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-240758