公开(公告)号：US20170334233A1

公开(公告)日：2017-11-23

申请号：US15525767

申请日：2015-11-13

Applicant: Innovia Security Pty Ltd

Inventor： Michael Harwick

IPC: B42D25/328 ,  G02B27/42 ,  B42D25/425 ,  B42D25/378 ,  B42D25/29 ,  G03B25/00 ,  B42D25/351 ,  B42D25/23 ,  B42D25/26 ,  B42D25/25 ,  B42D25/24

CPC classification number: B42D25/328 ,  B42D25/23 ,  B42D25/24 ,  B42D25/25 ,  B42D25/26 ,  B42D25/29 ,  B42D25/351 ,  B42D25/378 ,  B42D25/425 ,  B44F1/10 ,  G02B27/42 ,  G02B27/4205 ,  G03B25/00 ,  G03H1/0011 ,  G03H1/2205 ,  G03H1/30 ,  G03H2001/2218 ,  G03H2001/2273 ,  G03H2001/2292 ,  G03H2210/20

Abstract: Optical device, and preferably a security device for a security document, and methods for the production thereof, the device including a diffractive optical element (DOE) including a plurality of subregions, wherein each subregion is configured to produce a projected image corresponding to a frame of an animation, wherein the animation includes both a static component and a variable component, and wherein the sub-regions are arranged such that when the DOE is illuminated by a point light source and moved in at least one direction, the animation is viewable as a projected image.