Abstract: A process for making a multilayer photopolymer hologram structure without intervening adhesive layers between component photopolymer layers.

Abstract: A method for transferring a photopolymer hologram from a curved exposure surface to a curved application surface including the steps of forming a release layer on the exposure surface, forming a photopolymer layer on the release layer, forming a protective layer on the photopolymer layer, recording a hologram in the photopolymer layer, removing the protective layer, attaching the laminar assembly comprised of the exposure substrate, the release layer and the photopolymer layer to the curved application surface of the final substrate with an optical adhesive layer located between the photopolymer layer and the curved application surface, and removing the exposure substrate from the release layer.

Abstract: A hologram decal including a hologram layer having first and second surfaces, a first polymer layer secured to the first hologram surface, a second polymer layer secured to the second hologram surface, a pressure sensitive adhesive layer disposed on the non-hologram side of one of the first and second polymer layers, and a release liner covering said pressure sensitive adhesive layer, and techniques for making the hologram decal.

Abstract: A hologram decal including a hologram layer having first and second surfaces, a first polymer layer secured to the first hologram surface, a second polymer layer secured to the second hologram surface, a pressure sensitive adhesive layer disposed on the non-hologram side of one of the first and second polymer layers, and a release liner covering said pressure sensitive adhesive layer, and techniques for making the hologram decal.

Abstract: Multiple layers or holographic exposures and methods for preparing multiple layers of holographic exposures are described. The multiple layers of holographic exposure combine to form holographic stacks and are fabricated from layers of exposed and processed photosensitive recording films, each of which has at least one independently recorded hologram. The holographic stacks are useful for providing wide bandwidth holograms and holograms having superimposed images.

Abstract: A method is disclosed for making holograms on transparent surfaces. A protective thin substrate 18 is laminated to a temporary support 24 for processing. This procedure protects the delicate thin substrate 18 through the processing steps. Upon completion of the processing steps, the thin substrate 18 is then removed from the temporary support 24. The applied photosensitive material gives the delicate thin substrate 18 added strength. The thin substrate 18 is then laminated to the final surface 26. In one embodiment, the final surface 26 corresponds to a car windshield 34. Playback lamps 36 located in the dashboard 32 illuminate the thin substrate 18 to read the holographic image.