| 摘要 |
<p>A flat cathode ray tube having a micro-channel plate electron multiplier spaced a short distance from a fluorescent screen applied to a substantially flat faceplate. A deflection electrode array is disposed behind and spaced from the electron multiplier so as to he parallel therewith. An electron gun is disposed laterally of the space between the electron multiplier and the deflection electrode array so that in operation an electron beam produced by the electron gun enters the space along a path of movement substantially parallel to the deflection electrode array. Magnetic scanning means are provided to deflect the electron beam in a plane parallel to the deflection electrode array. The magnetic scanning means enables a range of different screen shapes and sizes to be made without the risk of deflection defocusing at the edges of the screen and the deflection electrode array enables the depth of the tube envelope to be substantially independent of the screen size.</p> |
