METHOD OF PRINTING OPTICAL LENSES ON THE SUBSTRATE FOR CREATION OF STEREO EFFECT Russian patent published in 2018 - IPC B42D15/00 

FIELD: physics.

SUBSTANCE: method characterized by microscopic printing of visual images consisting of a diffractive optical element placed on a flat substrate that is made of elementary round regions, is described. An image or text is placed under the substrate with the substrate being transparent and having a flat surface. Round lenses are printed on the substrate using a UV- printer and transparent UV-ink (varnish) print. Both the lenses and the image under it are printed on the same printer. The lenses are printed in at least three layers, where each successive layer of lenses is applied after the previous layer has dried, and the amount of the deposited layers and the change in the diameter of the lens form the degree of curvature of the lens, and a predetermined stereo effect is formed by changing the choice of ink for each layer.

EFFECT: giving volume, stereo effect to the image in a more simple and cost-effective way than in direct printing on lenticular plastic.

3 cl, 2 dwg