Either the inside left-hand circular or the right-handed circulary polarized light of optical selective reflection pattern formation and the incident light where the 1st optical choice reflecting layer which media for authentic decision

摘要

PPROBLEM TO BE SOLVED: To provide an authenticity judgment medium capable of solving problems such as difficulties in shortening of production hours and in alteration of the pattern of a judgment section due to the number of processes in production of embossed types, when forming a judgment section with an embossed hologram. PSOLUTION: The authenticity judgment medium 1 is produced by laminating on a substrate 2 an orientation film 3, a light selection reflecting pattern layer 4, a low stretchable pattern layer 5 and a light selection reflecting layer 6. The light selection reflecting pattern layer 4 may be laminated on the light selection reflecting layer 6 or on the rear face side of the substrate 2. PCOPYRIGHT: (C)2005,JPO&NCIPI