Crt having low voltage focus and dynamic correction

Details Crt having low voltage focus and dynamic correction Crt having low voltage focus and dynamic correction

H - Electricity

01

J

355/10, 313/35.3

H01J 29/62 (2006.01) H01J 31/10 (2006.01)

Patent

CA 1132649

CATHODE RAY TUBE HAVING LOW VOLTAGE FOCUS AND DYNAMIC CORRECTION ABSTRACT A cathode ray tube comprises two electron lens means in combination to crossover the electron beam at a second crossover between the two electron lens means with one of the two lens means having a variable voltage applied thereto to control the location of the beam crossover in order to focus the beam onto a display screen at any location away from the screen center.

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