| 摘要 |
A security device 20 is provided comprising a transparent layer 21 having a first optically variable effect generating relief structure 22 formed in a surface thereof; a reflection enhancing body 23 extending over the first relief structure 22 and following the contour of the first relief 22 on a first side 23a of the reflection enhancing body 23; and a second optically variable effect generating relief structure 26 formed in a second side 23b of the reflection enhancing body 23. The reflection enhancing body 23 comprises at least a first reflection enhancing layer defining the first and/or second sides 23a, 23b of the reflection enhancing body 23 and the first reflection enhancing layer comprises a binder having reflective particles dispersed therein. When the device is viewed through the transparent layer 21, the optically variable effect of the first relief structure 22 is visible and when the device is viewed from the other side, the optically variable effect of the second relief structure 26 is visible. There is also provided a method of manufacturing the security device. |
