Optical security element

Abstract

This invention relates to the field of optical anti-counterfeiting technology and discloses an optical anti-counterfeiting element. The optical anti-counterfeiting element includes a substrate, an image layer, and a focusing element. The substrate includes a first surface and a second surface disposed opposite to each other; the image layer is disposed on the first surface, and the image layer includes several blank areas and several graphic areas; the focusing element is disposed on the second surface, and the central area of ​​the focusing element has a blank area in the orthographic projection area of ​​the image layer. Through the above arrangement, the optical anti-counterfeiting element can be used to acquire anti-counterfeiting images from non-perpendicular viewing angles, and it also avoids acquiring anti-counterfeiting images of the optical anti-counterfeiting element from viewing angles perpendicular to the optical anti-counterfeiting element, effectively improving the anti-counterfeiting and anti-counterfeiting capabilities of the optical anti-counterfeiting element.

Images