Security device


A security device has a substrate formed with a surface relief defining an optically variable effect generating structure. At least two different reflection enhancing materials are provided on, or on the same side of, substrate with respect to the surface relief, whereby the optically variable effect can be viewed against a background defined by the reflection enhancing materials.


< Scratch tape

< Method and apparatus for secure printing

> Tab paper 2-sided print method, tab paper 2-sided print program, computer readable storage medium storing program, and print control apparatus

> Collapsible educational chart

~ 00185