SPACE-SAVING CATHODE RAY TUBE EMPLOYING ELECTROSTATICALLY AMPLIFIED DEFLECTION

摘要

A cathode ray tube comprises an electron gun to direct electrons toward the electrode having a bias potential to the screen plate surface. The electron beam is scanned across the magnetic deflection to the bump on the phosphorescent material thereon in order to generate light to depict the information, or a surface plate. Electrode between the tube neck and the surface plate is biased to a potential screen or higher potential. As a result, the electron beam E becomes more is obtained is greater than the total deflection is deflected by adding electrostatically as provided by the magnetic deflection yoke. The other electrode close to the surface plate is being biased to the screen potential or a potential of the lower board to direct the electrons towards the surface, thereby increasing the landing angle of the electron beam thereon.