| 摘要 |
PROBLEM TO BE SOLVED: To provide a screen unit which allows a projector to project at a very short projection distance. SOLUTION: The screen unit 1 includes: a mirror device 3 reflecting image light projected from the projector 2; and a screen 4 onto which the image light reflected by the mirror device 3 is projected. The mirror device 3 is installed near the lower part of the screen 4 and includes a light introducing port 22 for taking in the image light and a plurality of reflecting mirrors 23 reflecting the image light taken in from the light introducing port 22 toward the screen 4 so that the image light goes upward. COPYRIGHT: (C)2009,JPO&INPIT
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