B - Operations – Transporting – 42 – D
Patent
B - Operations, Transporting
42
D
B42D 15/10 (2006.01) B44F 1/12 (2006.01) G02B 5/18 (2006.01) G02B 5/32 (2006.01)
Patent
CA 2247974
A document consists of a substrate (1) and a security element which comprises an optical grating. In order to enhance the copying security, the optical grating is a volume hologram (2) into which a kinetic effect has been introduced (Fig. 2).
Dausmann Gunther
de Jongh Rudi
Hoeppner Harald
Loer Thomas
Martens Detlef
Bundesdruckerei Gmbh
Hsm Holographic Systems Munchen Gmbh
Shapiro Cohen
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