专利汇可以提供Electron type fluorescent display device with planar adjacent control electrode专利检索,专利查询,专利分析的服务。并且An electron tube having at least two electrodes and a cathode disposed within an evacuated envelope. One of the electrodes is spaced generally transversely with respect to the electro beam path from the cathode to the other electrode. The electrode which is spaced from the electron beam path is used to control the cathode current. Means are provided to couple various voltages to the respective electrodes to accomplish the desired control. The anode electrode may have a phosphor coating thereon so as to glow when bombarded by an electron beam from the cathode. Accordingly, an electron tube of this type is adaptable to display units for the display of letters, symbols, numerals and the like. In one form of the invention, the anode electrode and the control electrodes are arranged in a predetermined pattern to cause elemental areas of the anode electrode to glow and produce a display.,下面是Electron type fluorescent display device with planar adjacent control electrode专利的具体信息内容。
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