| 摘要 |
PURPOSE:To obtain video information as a current from an electrode and auxiliary electrode, by performing a parallel movement of the field figured on an anode screen with a scanning signal. CONSTITUTION:An electron beam generated from an electron gun 1, anode 2 and electron lens 3 is deflected by deflecting plates 4, 5 to figure an observed signal waveform on an anode screen 8. Then a scanning signal for reading a figure is applied to the deflecting plates 4, 5 to perform a parallel movement on the anode screen 8. An electrode 6 can read information by scanning the figure on the field. Here the scanning signal, if synchronized with a scanning signal in a cathode-ray tube for display to amplify a current detected by the electrode 6 and input as a luminance signal of the cathode-ray tube for display, can display a waveform. |
