Patent ID: 7997625

Claim:
A security device provided on a substrate, comprising: at least one printed or transferred first area, each first area having at least one first color; at least one printed or transferred second area on a same side of the substrate as the first area, each second area having at least one second color, wherein at least one of the first and second areas comprises a discontinuous pattern, wherein the first area surrounds the second area, each first area being distinguishable from the second area, the first area defining a border of the second area, and wherein at least one of the first area and the second area defines an image; and a camouflage pattern provided over the image and at least an adjacent region surrounding the image on the same side of the substrate as the first and second areas, the camouflage pattern having a color and a pattern such that in combination with the first and second areas, the camouflage pattern renders the image substantially invisible when viewed under reflected light but visible when viewed in transmission, wherein, elements of the camouflage pattern and background areas between elements of the discontinuous pattern are approximately a same size, or the elements of the camouflage pattern are of a similar size to the elements of the discontinuous pattern.