| 摘要 |
Security device comprising at least one first pattern (A) which is visible through a lens array (2) along an associated first line of vision (Deltaalpha) and at least one second pattern (B) which is visible through said lens array (2) along an associated second line of vision (Deltabeta), each second line of vision (Deltabeta) being oriented relative to at least one first line of vision (Deltaalpha) along a characteristic "angular step" (gamma) of the lens array (2), wherein said at least one second pattern (B) is derived from at least one angle (a) of a first line of vision (Deltaalpha) with respect to a normal (DeltaNu) to the device (l). Method of manufacturing such a security device. Applicability to an identity document. |
