| 摘要 |
A method of manufacturing an array of image elements for a security device 1 is disclosed. The method comprises: (a) applying a release substance 18 across an array area on a first substrate 19 in accordance with a pattern comprising regions 12 in which the release substance is operative, spaced by elements 14 in which the release substance is absent or non-operative; then (b) printing a first image (I1, Fig.1c) continuously across the array area over the patterned release substance; and then (c) processing the array area so as to remove the release substance and the portions of the first image thereon in the regions of the pattern. Elements of the first image are retained in accordance with the pattern so as to form an array 10 of first image elements 12. The pattern is periodic in at least a first dimension x and the elements defined by the pattern are substantially identical to one another. There is also provided a method where a second image (I2, Fig. 3e) is disposed continuously across the array area over or under the first image. There is further provided a security device having the first and second image. |
