Picture display tube

Details Picture display tube Picture display tube

H - Electricity

01

J

313/35.13, 313/3

H01J 29/48 (2006.01) H01J 29/62 (2006.01)

Patent

CA 2007407

ABSTRACT: Picture display device. Picture display device comprising a display tube with an electron gun having a tubular structure with an outer surface and an inner surface on which a helical resistance structure of a material having a high electrical resistance constituting a focusing lens is provided. The outer surface is provided with an electrode of readily electrically conducting material arranged opposite at least a part of the focusing lens for capacitively controlling the focusing lens by means of a dynamically variable voltage the amplitude of which is a function of the position of the electron beam spot on the display screen.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1930947