| 摘要 |
<p>A security element formed by at least two printed portions (1,2). The first portion (1) is a printed, raised line structure defining a background region (6) in which the lines extend substantially parallel in a firs direction, and an image region (5) defining a boundary (8) with the background region. The printed lines in the image region (5) extend substantially parallel in second direction orthogonal to the first direction to define a first, non-diffractiv latent pattern intended to be non-visible to the naked eye when viewe perpendicularly but intended to be visible when viewed at other viewing angles. In locations where the boundary (8) extends at an acute angle to the line defining that part of the boundary, the image and background regions abut. The second portion (2) defines a second, non-diffractive pattern (3) intended to be visible when viewed perpendicularly and at said other viewin angles, and wherein the second, non-diffractive pattern is located relative to th first, non-diffractive latent pattern to enable the security element to be verified.</p> |
