| 摘要 |
<p>An anti-counterfeit material having concavo-convex structure is disclosed. The anti-counterfeit material of the present invention has the concavo-convex structure which only has shielding function, at least two fixed characteristic patterns A and B are observed on at least two visible surfaces of the said concavo-convex structure when viewing from at least two different angles. Said at least two characteristic patterns A and B have marked visual difference such that at least the characteristic patterns A and B can be observed when viewing at different angles from the surfaces of the anti-counterfeit material, therefore a strong visual difference can be created, and outstanding anti-counterfeit effect can be realized.</p> |
