| 摘要 |
The present invention relates to a security article, in particular a security document, comprising a security element (1) that comprises an optical system, comprising: a transparent or translucent substrate (2); on the side of a first surface (2a, 2b) of the substrate (2), a combined image comprising a plurality of encoded interleaved images (II); on the side of second surface (2a, 2b) of the substrate (2), opposite the first, an exposing screen (4) placed on top of the combined image, which enables the encoded images (Ii) to be observed during a change in the direction of observing the security element (1) relative to the optical system, wherein the encoded images (II) are observable from the side of the first surface and from the side of the second surface of the substrate (2). |
