| 摘要 |
<p>A vacuum envelope includes flat face and rear plates (1, 2) that face each other, and a continuous phosphor screen (7) is formed on the inner surface of the face plate. The rear plate is provided with a plurality of electron guns (15) and deflectors (16) for deflecting electron beams emitted from the electron guns in the horizontal and vertical directions. As the electron beams are deflected, the phosphor screen is scanned with them in the horizontal and vertical directions. The phosphor screen has a plurality of regions arranged in the horizontal and vertical directions, and is scanned so that a raster is generated thereon. In vertical scanning at a lower speed than horizontal scanning, the vertically arranged regions are scanned on a time-series basis, whereupon rasters are generated thereon. <IMAGE></p> |
