US 4,920,039 A · Multiple imaging

Abstract

A method and article providing different images from differing viewing angles. The image side of a lenticular sheet is printed with radiation sensitive image layer and cured using a collimated radiation source located at a viewer position with respect to the lenticular surface. Uncured imaging material is removed from the printed surface as by rinsing, and the resulting clear region of the imaging surface may be processed further in a variety of ways. The clear region may be left unprinted, or printed with a second image different from the first, or printed with a stereoscopic image that combines with its pre-printed mate to form a three dimensional image. The clear region also may be vacuum metallized or chemically plated to form a highly reflective surface. The method permits use of relatively thin lenticular sheeting.

Claims10

Dependent claims

An imaging method which comprises the steps of:

(a) embossing a plastic film to produce an array of lenticles on said film,
(b) printing an image with a visible light absorbing UV sensitive imaging layer on the side of the film opposite the array of lenticles;
(c) exposing portions of the printed image to collimated ultraviolet radiation by passing said ultraviolet radiation through said lenticles,
(d) rinsing the imaging layer with an aqueous media thereby rinsing away said unexposed portions of the image, resulting in a film product whereby an image can be made to appear and disappear by viewing the lenticular side of the film and changing the viewing angle in relation to the plane of the film.

1 more element

Dependencies are inferred from the claim text.

Multiple imaging

Life of this patent

Multiple imaging

Life of this patent

Abstract

Claims10