FIELD: physics.
SUBSTANCE: printed article has a substrate, having an upper surface and a lower surface; a graphic image layer having a plurality of images printed on at least one surface of the substrate; and a plurality of polygonal lenses printed on at least one surface of the substrate above the graphic image layer. The polygonal lenses are colourless, magnifying convex lenses. The printed lenses have a height between 0.0001 and 0.005 inch, width between 0.0005 and 0.01 inch when viewed from above and distance between the lenses between 0.0005 and 0.01 inch.
EFFECT: high image definition.
7 cl, 11 dwg
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Authors
Dates
2014-01-10—Published
2009-02-05—Filed