| 摘要 |
PROBLEM TO BE SOLVED: To provide a mirror with high performance, which is changeable into a plane mirror, a concave mirror or a convex mirror. SOLUTION: A mirror surface sheet 1 whose curvature is changeable is usable as a plane mirror, a concave mirror or a convex mirror by changing the curvature of the mirror surface sheet 1 using fluid such as gas and liquid, with the mirror surface sheet 1 being in a non-contact state. COPYRIGHT: (C)2010,JPO&INPIT
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