| 摘要 |
The monitor comprising a CRT (2) producing the image, a first hologram (3) for forming the image which is located at horizontal site of CRT, a second hologram (6) for compensating the distortion of image formed by the first hologram, a screen (5) displaying the image formed by the second hologram, decreases the manufacturing cost without generating the harmful wave and restraining of screen size. The magnification of image formed on screen is explained by the following equation, m = (L2 + L3/L1) x (L4/L3) = m1 x m2. The monitor uses the hologram satisfying the following condition, is m1 = m2.
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