Method of manufacturing cathode ray tube

Details Method of manufacturing cathode ray tube Method of manufacturing cathode ray tube

1996-08-20

1998-06-16

Bradley, P. Austin

Electric lamp or space discharge component or device manufacturi

Process

With assembly or disassembly

445 57, 445 73, H01J 9385

Patent

active

057660549

ABSTRACT:
In order to heat a field emission type cold cathode 10 of a cathode ray tube, which generates electron beams, to a temperature high enough to obtain a desired electron emission characteristics of the field emission type cold cathode even when an inner temperature distribution of an evacuating furnace 20, which includes furnace temperature setting heaters 21 and a vacuum pump 23, is not uniform, the field emission type cold cathode 10 of an electron gun 3 of the cathode ray tube, which is provided within a neck portion 2a of a bulb 2 of the cathode ray tube, is locally heated by a neck heater 22 detachably mounted on an outer peripheral surface of the neck portion 2a while the bulb 2 is being evacuated.

REFERENCES:
patent: 4231627 (1980-11-01), Schaffernicht et al.
patent: 4406637 (1983-09-01), Hernqvist
patent: 5201682 (1993-04-01), Nakagawa et al.

Affiliated with

Also associated with

Rating

Method of manufacturing 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 Method of manufacturing cathode ray tube, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of manufacturing cathode ray tube will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1718427