Pixel mapping and printing for micro lens arrays to achieve dual-axis activation of images

摘要

A visual display assembly adapted for use as an anti-counterfeiting device on paper currency, product labels, and other objects. The assembly includes a film of transparent material including a first surface including an array of lenses and a second surface opposite the first surface. The assembly also includes a printed image proximate to the second surface. The printed image includes pixels of frames of one or more images interlaced relative to two orthogonal axes. The lenses of the array are nested in a plurality of parallel rows, and adjacent ones of the lenses in columns of the array are aligned to be in a single one of the rows with no offset of lenses in adjacent columns/rows. The lenses may be round-based lenses or are square-based lenses, and the lenses may be provided at 200 lenses per inch (LPI) or a higher LPI in both directions.

主权项

1. A visual display assembly useful as an anti-counterfeiting device on paper currency, product labels, and other objects, comprising:
a film comprising a first surface including an array of lenses and a second surface opposite the first surface; and an image layer proximate to the second surface, the image layer comprising pixels of frames of images interlaced relative to two orthogonal axes, wherein the image layer is adapted to display an image including a set of symbols, wherein the set of symbols is activated with a first display effect when the assembly is rotated from a normal POV about a first axis, wherein the set of symbols is activated with a second display effect differing from the first display effect when the assembly is rotated from the normal POV about a second axis orthogonal to the first axis, and wherein the first display effect includes concurrently moving a first subset of the symbols in a first direction and a second subset of the symbols in a second direction opposite the first direction.