Color cathode ray tube having DC magnetic field during...

Details Color cathode ray tube having DC magnetic field during... Color cathode ray tube having DC magnetic field during...

2005-11-08

2005-11-08

Guharay, Karabi (Department: 2879)

Electric lamp and discharge devices

Cathode ray tube

Shadow mask, support or shield

C313S313000, C315S008000, C315S085000

Reexamination Certificate

active

06963163

ABSTRACT:
A color cathode ray tube having a striped phosphor screen is provided, in which color displacements due to the tube axis (Z-axis) component of the terrestrial magnetism can be decreased at low cost. A positive temperature coefficient thermistor and a degaussing coil are connected in series to an AC power source (AC 100V) via a switch. A rectifier/smoothing circuit is provided in parallel to the positive temperature coefficient thermistor. When the switch is turned on, an ordinary degaussing process due to the AC attenuating magnetic field interlinked to the degaussing coil is performed, and the DC magnetic field in the Y-axis direction interlinked to the degaussing coil decreases the influence of the terrestrial magnetism in the tube axis direction (Z-axis direction).

REFERENCES:
patent: 4262232 (1981-04-01), Willis
patent: 4734620 (1988-03-01), Hemme
patent: 5168195 (1992-12-01), Breidigan et al.
patent: 5754007 (1998-05-01), Yoshida et al.
patent: 6-6817 (1994-01-01), None
patent: 7-336710 (1995-12-01), None
patent: 9-135452 (1997-05-01), None
patent: 2001238225 (2001-08-01), None
patent: 2002199412 (2002-07-01), None

Affiliated with

Also associated with

Rating

Color cathode ray tube having DC magnetic field during... 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 cathode ray tube having DC magnetic field during..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Color cathode ray tube having DC magnetic field during... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3498488