Multiple beam cathode ray tube having reduced off-axis...

Details Multiple beam cathode ray tube having reduced off-axis... Multiple beam cathode ray tube having reduced off-axis...

H - Electricity

01

J

313/35.262

H01J 29/51 (2006.01) H01J 29/46 (2006.01) H01J 29/56 (2006.01)

Patent

CA 1147794

MULTIPLE BEAM CATHODE RAY TUBE HAVING REDUCED OFF-AXIS ABERRATIONS Abstract of the Disclosure A multiple beam cathode ray tube having diminished off- axis aberrations and a reduced length. A tube having a flat or planar electron beam emitter means, focussing means and deflection means is provided. A novel accel- erating means is provided for accelerating the emitted beams while causing them to converge towards a crossover point which is located not closer to the screen of the tube than the deflection means. The maximum off-axis distance of the beams when traversing the focussing and deflection means is reduced, and the off-axis aberrations are correspondingly diminished. Y0978-071

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