Multiple layer holograms

G - Physics – 03 – H

Patent

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G03H 1/28 (2006.01) G03H 1/04 (2006.01) G03H 1/18 (2006.01) G03H 1/26 (2006.01)

Patent

CA 2068984

Multiple layers of 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.

L'invention est constituée par une multiplicité de couches d'exposition holographique et par des méthodes de fabrication de cette multiplicité. Les multiples couches d'exposition holographique sont combinées pour former des empilages holographiques et sont fabriquées avec des couches de films d'enregistrement photosensibles qui ont été exposés et développés, chacun d'eux portant au moins un hologramme particulier. Les empilages holographiques ainsi obtenus permettent de produire des hologrammes à large bande et des hologrammes à images superposées.

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