| 摘要 |
<p>PURPOSE:To add a deflecting function to a modulating electrode, and to realize a large image screen, to improve the deflecting efficiency, and to realize a high precision and a high luminance, by multifying the modulating electrode. CONSTITUTION:Electrodes 4 and 4' furnishing independent voltage applying means respectively, to modulate and deflect the electron beams emitted from an electron emitting element provided on an insulating base 1 are provided plurally to each one electrode emitting element. In other words, these modulating electrodes 4 and 4' are multiplied. In this case, the electron emitting element may be a hot cathode or a cold cathode, but an electron emitting element called as a surface conductive type emitting element in cold cathodes is favorable to be used. As a result, not only a modulating function, but also a deflecting function can be given to the modulating electrodes 4 and 4'. Consequently, a large image screen, a high precision, and a high luminance can be realized.</p> |
