Patent ID: 8383294
Filing Date: 2013-02-26
Classification: G01N,G03F,G03H

Abstract:
1. A method for forming a selective holographic image, the method comprising the steps of: providing at least one of a monomer or a free radical generator together with a binder to form a layer of an inactive non-photosensitive holographic recording material; activating only a portion of the layer of inactive non-photosensitive holographic recording material into a photosensitive state by selectively imbibing it with a dye forming a selectively activated photosensitive holographic recording material; and recording a holographic image in the activated portion of the layer by exposing at least the selectively activated photosensitive holographic recording material to a holographic recording process where no hologram is formed in other portions of the layer void of any dye and which remains inactive and non-photosensitive.