Lenticular printing is a technology in which lenticular lenses are used to produce printed images with an illusion of depth, or the ability to change or move as they are viewed from different angles.
Close-up of the surface of a lenticular print
Berthier's diagram: A-B=glass plate, with a-b=opaque lines, P=Picture, O=Eyes, c-n=blocked and allowed views (Le Cosmos 05–1896)
Saturnalia 1973 LP with lenticular label that switches from "Magical love" to a logo.
Han-O-Disc manufactured for Light Fantastic with metal flake outside and Dufex process print within.
A lenticular lens is an array of lenses, designed so that when viewed from slightly different angles, different parts of the image underneath are shown. The most common example is the lenses used in lenticular printing, where the technology is used to give an illusion of depth, or to make images that appear to change or move as the image is viewed from different angles.
A series of cylindrical lenses molded in a plastic substrate