| 摘要 |
PURPOSE:To obtain a compact color cathode-ray tube unit which is suitable for the view finder of a portable video camera. CONSTITUTION:The electron beam 3a radiated from a cathode 2a scans the single section 5a of a phosphor screen and forms a red picture. The red picture projected on the external of a panel is projected and reflected on a half mirror 6a and its virtual image is formed in a space area 9. In the same way, the electron beam 3b radiated from a cathode 2b scans a section 5b and forms a green picture and its virtual image is formed in the space area 9. Besides, the blue picture formed in a section 5c by the electron 3c radiated from a cathode 2c is reflected on a reflecting mirror 6c and its virtual picture is formed in the space area 9. In this case, since the three sections are scanned individually by each exclusive electron beam, the distortion of each raster is almost equalized. As a result, a color picture in which red, green, and blue picture images are combined can be seen in the space area 9. |
