Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – Electron or ion beam deflecting type
Patent
1993-12-15
1995-04-04
Picard, Leo P.
Electricity: magnetically operated switches, magnets, and electr
Magnets and electromagnets
Electron or ion beam deflecting type
315 8, 315 85, 361150, H01H 100, H01J 2906, H01J 152
Patent
active
054041210
ABSTRACT:
A deflection yoke is mounted with a leaked magnetic-field canceling coil installed on a screen portion for attenuating externally emitted leakage magnetic field, using a horizontal deflection coil. The leaked magnetic-field canceling coil includes a bottom side in parallel with the surface of the screen portion of a coil separator contacting the horizontal deflection coil, left and right sides extending from both ends of the bottom side to an apex peak point to be set in the range of 1/4 of the length of the bottom side from the alternative one end of the bottom side; and and a first and second diagonal sides straightly connecting one end of the left and right sides to the right and left ends of the bottom side, respectively. Another leaked magnetic-field canceling coil includes a bottom side formed in parallel with the surface of the screen portion of the coil separator contacting the horizontal deflection coil, left or right side extending straightly from alternative one end of the bottom side to an apex peak point to be set in the range of 1/4 of the length of the bottom side from the alternative one end of the bottom side; and a diagonal side straightly connecting the side with the bottom side.
REFERENCES:
patent: 4788470 (1988-11-01), Kohzuki
patent: 4853588 (1989-08-01), Ohtsu
patent: 4914350 (1990-04-01), Bosch
patent: 4922167 (1990-05-01), Sluyterman
patent: 5170094 (1992-12-01), Giannantonio
patent: 5189348 (1993-12-01), Yokota
patent: 5317239 (1994-05-01), Ohguro
Yokota, M et al. "S8-6 A New System Compensating Low . . . " Japan Display 92 Proceedings of the 12th International Display Conference Oct. 1992 pps. 285-288.
Picard Leo P.
Ryan Stephen T.
Samsung Electro-Mechanics Co. Ltd.
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