VALIDITY JUDGEMENT BODY AND LABEL FOR VALIDITY JUDGEMENT BODY

摘要

PPROBLEM TO BE SOLVED: To provide an optical validity judgement body excellent in designability and security properties and a label for the validity judgement body. PSOLUTION: The validity judgement body 1 is used in a verification medium 7. Trough parts between minute triangular column prisms of a prism sheet 23 in which the minute triangular column prisms 3 formed of a transparent material approximately in the shape of a straight line are arranged in parallel on a substrate film 2 are filled partially with a transparent or a colored resin 4, and other trough parts are unfilled to leave air layers 8, so that the prism sheet with a constant pattern formed is stuck to the verification medium 7 through an adhesive 5 etc. The label for the validity judgement body is a medium used in the validity judgement body and coated with a peelable protective sheet of paper. PCOPYRIGHT: (C)2004,JPO&NCIPI