| abstract |
The present invention relates to a security element (1) comprising a substratum at least partially transparent, on the front and back of which respectively and partially of the first (3) and second (4) marks in the form of metallizations and / or impressions, the first brands (3) overlapping predominantly to the second brands (4), the first and second brands (3, 4) respectively forming first and second distinct patterns according to their respective faces, the degree of visibility of the second marks (4) varying with the angle observation of the front of the security element (1), the thickness of the substrate being between 5 and 100 μm. |