Security element

Details Security element Security element

B - Operations, Transporting

41

M

B41M 3/14 (2006.01) B42D 15/10 (2006.01)

Patent

CA 2077165

A security element for the authentication of a substrate (1) has a pattern comprising optical diffraction elements (4) which are embossed in a carrier material of plastic material and unembossed neutral areas (5). On the embossing side of the carrier material a reflecting layer covers only surfaces with relief structures of the diffraction elements (4) while the neutral areas (5) which lie therebetween are free of the reflecting layer and are therefore non-reflecting. If the security element is stuck in the form of a stamp (3) onto the substrate (1) and the carrier material is transparent, image portions (6), which are covered by the stamp (3), of a feature (2) on the substrate (1) can be discerned through the neutral areas (5).

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