| 摘要 |
PROBLEM TO BE SOLVED: To obtain a picture in focus over the entire area of a screen not only in long-distance projection but also in short-distance projection. SOLUTION: The projector device projecting the picture to the screen 2 through a projection lens 3 is equipped with an inclination adjusting means 8 selecting a projection method hardly affected by the curvature of field of the projection lens 3 caused in accordance with a distance to the screen 2. COPYRIGHT: (C)2007,JPO&INPIT
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