| 摘要 |
FIELD: electronics, in particular, vacuum electronic devices; in particular, data displays. SUBSTANCE: a positive potential is applied to the grid of such a magnitude at which the secondary electron emission ratio of anodes-segments coated with phosphor becomes equal to or larger than unity. In this case the anode-segments, which are free electrodes, accept the magnitude of equilibrium potential. The cathode-luminescent indicator controlled by such a method uses three electrodes: cathode, grid and anodes-segments. The anodes-segments are made as an insulating base coated with phosphor preventing any conductive coupling of the anodes-segments to the power source and other indicator electrodes. In the offered design version the indicator is furnished with a fourth electrode in the form of a rolled grid. EFFECT: enhanced brightness of glow of cathode-luminescent indicator, simplified base design. |
