| 摘要 |
Security information 20 is formed from parallel lines 22 of shapes 24 which are printed on to a substrate. Each line 22 is formed as a wave. Portions of each line are displaced relative to adjacent portions of the line to give the impression of at least part of the printed surface not being in the same plane as the surface. The displacement of the lines appears to create three dimensional lettering 26. The shapes 24 may touch one another or may be characters such as letters (34a,34b, figure 3d) separated by spaces. The letters may form words (44, figure 4c). The security information may be printed using ink only visible under UV light. The letters 26 are produced using numismatic software. |
