Combination of a monochrome cathode-ray tube and a...

Details Combination of a monochrome cathode-ray tube and a... Combination of a monochrome cathode-ray tube and a...

H - Electricity

01

J

313/35.315

H01J 29/76 (2006.01) H01J 29/56 (2006.01)

Patent

CA 1173486

PHN 9313 17 ABSTRACT: A combination of a monochrome cathode-ray tube with a deflection unit for applications which require a high resolution, for which purpose the electron beam on its way through the deflection magnetic field produced by the deflection unit on the screen side thereof experiences the effect of a positive six-pole component of the line and field deflection field, and integrally experiences the effect of a six-pole component of the line and field deflection field component having a strength and polarity sufficient to warrant a spot quality as is required for high resolution, while preferably the effective length ? of the deflection fields satisfies the condition ? ? (0.2?2 + 0.25)L, where L represents the distance between the deflection point and the display screen and ? is the tangent of the deflection angle of the electron beam for maximum deflec- tion.

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