MEDIUM AND LABEL FOR PREVENTING FORGERY, PRINTED MATTER, TRANSFERRING FOIL AND DISCRIMINATION METHOD

摘要

PPROBLEM TO BE SOLVED: To provide a medium for preventing forgery which can achieve a higher effect when used for preventing forgery and to provide a label for preventing forgery, printed matter, transferring foil and a discrimination method. PSOLUTION: The medium 10 for preventing forgery is provided with: a light reflecting layer 22; a λ/4 retardation layer 24 opposed to a part of the front surface of the light reflecting layer 22; and a λ/8 retardation layer 26 opposed to the other parts of the front surface of the light reflecting layer 22. PCOPYRIGHT: (C)2008,JPO&INPIT