Beam penetration CRT with internal automatic constant deflection

Details Beam penetration CRT with internal automatic constant deflection Beam penetration CRT with internal automatic constant deflection

1985-08-07

1986-04-29

Jordan, Charles T.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

315364, 313447, 313448, H01J 2946, H01J 2956

Patent

active

045859760

ABSTRACT:
The horizontal and vertical deflection factors for a split anode beam penetration color CRT are compensated for changes and remain constant as trace color is varied. In an electro-statically deflected tube a correction lens near an expansion mesh and electrically connected to the split anode faceplate alters the radial velocities of electrons leaving the mesh such that their point of impact upon the faceplate is unaffected by changes in axial velocity induced to change trace color. In a magnetically deflected tube a correction lens in the neck near entrance to the deflection yoke is supplied with a voltage that varies in conjunction with that of the faceplate. The axial velocity of the electrons in the region of magnetic deflection is adjusted to produce amounts of deflection that remain constant despite changes in the faceplate voltage.

REFERENCES:
patent: 2523099 (1950-09-01), De Gier
patent: 2681426 (1954-06-01), Schlesinger
patent: 2803781 (1957-08-01), Jurgens
patent: 3772553 (1973-11-01), Balint et al.
patent: 3840773 (1974-10-01), Hart
patent: 3921025 (1975-11-01), Odenthal
patent: 3983444 (1976-09-01), Odenthal
patent: 4117379 (1978-09-01), Bijma
patent: 4142133 (1979-02-01), Balandin et al.
patent: 4196371 (1980-04-01), McGrath, Jr.
patent: 4338548 (1982-07-01), Bono et al.
patent: 4352043 (1982-09-01), Rigden
patent: 4371808 (1983-02-01), Urano et al.
patent: 4450387 (1984-05-01), Reed et al.

Affiliated with

Also associated with

Rating

Beam penetration CRT with internal automatic constant deflection does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Beam penetration CRT with internal automatic constant deflection, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Beam penetration CRT with internal automatic constant deflection will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-143051