| 摘要 |
PROBLEM TO BE SOLVED: To provide a pattern reproduction plate which can inexpensively realize the addition of additional information, to a photodiffraction pattern of a hologram or the like, its manufacturing method and a photodiffraction object with sophisticated security. SOLUTION: The pattern reproduction plate 10 comprises a reproduction plate 11, a fine pattern 12 and the like. The reproduction plate 11 is a plate with at least a photodiffraction pattern mold 21 reproduced from an original glass plate 20 having the photodiffraction pattern mold 21 for transferring the photodiffraction pattern which causes photointerference. The fine pattern 12 is formed on the photodiffraction pattern mold 21 of the reproduction plate 11 with a patterned parallel shade line pattern having straight lines with a prescribed width arranged at a prescribed pitch and parts where the direction of the straight line differs. The photodiffraction object is manufactured by pressing this pattern reproduction plate 10 to an ionizing radiation-cured resin or the like. COPYRIGHT: (C)2006,JPO&NCIPI |
