Patent ID: 6214443
Filing Date: 2001-04-10
Classification: B42D,G09F,Y10S,Y10T

Abstract:
A security tamper evident holographic device affixable to a substrate, said device comprising:(a) a clear protective layer having two opposed surfaces;(b) a thin patterned layer of a clear radiation-cured resin cast onto one of said surfaces of said protective layer in a pattern such that there are portions of said one protective layer surface that are covered by said pattern layer and there are other portions of said one protective layer surface that are not covered by said pattern layer;(c) an image layer of a radiation-cured resin bearing a holographic image and having two opposed surfaces of which one faces toward, and is bonded to, said pattern layer and portions of said one protective layer surface that are not covered by said pattern layer, the bond of said image layer to the not-covered portions of said one protective layer surface being stronger than the bond of said image layer to the pattern layer;(d) a reflective layer strongly attached to the other of said two surfaces of said image layer; and(e) an adhesive layer, bonded to the reflective layer, for affixing the device to a substrate.