| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an anticounterfeit medium that has an improved anticounterfeit function and that facilitates efficient distinction of authenticity. <P>SOLUTION: The anticounterfeit medium 10 includes: a base material 11; an optical selective reflection layer 12 which is provided at least on the surface of the base material 11 and which has a selective reflection characteristic of light; a volume hologram layer 13 which is provided on the reverse side of the base material 11 and which records interference fringes in the layer thickness direction; and a ferromagnetic material layer 14 which is provided in a pattern on the side opposite from the base material 11 of the volume hologram layer 13 and which is formed of a ferromagnetic material. <P>COPYRIGHT: (C)2009,JPO&INPIT |
