G - Physics – 02 – B
Patent
G - Physics
02
B
G02B 5/18 (2006.01) B42D 15/10 (2006.01) G02B 5/32 (2006.01) G09F 3/02 (2006.01) G09F 19/12 (2006.01) G09F 19/14 (2006.01)
Patent
CA 2636488
It is possible to realize a high anti-counterfeit effect. A display (10) includes: a first boundary portion (12a) having a relief type diffraction grating formed by a plurality of grooves; and a second boundary portion (12b) formed by a plurality of concave or convex portions arranged two-dimensionally at a smaller center-to-center distance than the center-to-center distance of the grooves and each having a forward taper shape.
Il est possible de réaliser un effet anti-contrefaçon élevé. Un affichage (10) inclut : une première partie limite (12a) formée par une pluralité de rainures ; et une seconde partie limite (12b) formée par une pluralité de parties concaves ou convexes disposées de manière bidimensionnelle à une distance de centre à centre plus petite que la distance de centre à centre des rainures et chacune ayant une forme effilée vers l'avant.
Maruyama Shingo
Nagano Akira
Toda Toshiki
Fetherstonhaugh & Co.
Toppan Printing Co. Ltd.
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