Cathode ray tube having low voltage focus and dynamic...

Details Cathode ray tube having low voltage focus and dynamic... Cathode ray tube having low voltage focus and dynamic...

H - Electricity

01

J

355/11

H01J 29/62 (2006.01) H01J 29/58 (2006.01)

Patent

CA 1139007

-11- 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 voltageapplied thereto to dynamically 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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