| 摘要 |
PROBLEM TO BE SOLVED: To solve the following problem: various methods such as a laser beam machining method are known as a method for manufacturing a magical mirror but conventionally they have put restrictions on thickness of material, a design pattern, a focal length, etc. SOLUTION: Prescribed patterned irregularities are formed on a surface opposite to a surface finished to a mirror surface of a metal plate by photoetching or the like, and then, the metal plate is pressed to have a curved surface so that the surface finished to the mirror surface may be convex, whereby minute irregularities invisible to bare eyes are given to the surface to obtain a magical mirror. A focal length of a projected design pattern can be changed by an angle of the curved surface. The magical mirror body is bent to create a pattern of a convex surface in the surface by forming the curved surface so that a shadow of the pattern of the convex surface may appear within the focal length of a plane as an image darker than the other portions. Thus various patterns such as fine patterns of narrow lines and patterns of thick lines can be represented. COPYRIGHT: (C)2011,JPO&INPIT
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