Holograms exposed and processed on plastic substrates
AssigneeZebra Imaging, Inc.
InventorsMichael A. Klug, Qiang Huang, Walter G. Stierhoff, Jr.
Life of this patent
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Abstract
A holographic recording material coupled to a plastic substrate can be exposed to an interference pattern formed by at least one coherent light source, and subsequently processed, thereby eliminating the need to transfer the holographic recording material from a glass substrate to the plastic substrate. Additionally, by performing a post-exposure heating step in a liquid bath, the formation of unwanted bubbles between the plastic substrate and the holographic recording material is at least in part prevented.
Claims31
A method of producing a hologram on a plastic substrate comprising:
- providing a holographic recording material layer coupled to the plastic substrate;
- exposing the holographic recording material layer coupled to the plastic substrate to an interference pattern formed by at least one coherent light source;
- and
- heating the exposed holographic recording material layer coupled to the plastic substrate while the exposed holographic recording material layer coupled to the plastic substrate is in one of a liquid bath and a steam bath.
A hologram comprising:
- a plastic substrate;
- and
- an exposed holographic recording material layer coupled to the plastic substrate, the exposed holographic recording material layer including an interference pattern formed by at least one coherent light source, wherein the exposed holographic recording material layer coupled to the plastic substrate has been heated in one of a liquid bath and a steam bath.
A method of producing a hologram on a plastic substrate comprising:
- providing a holographic recording material layer coupled to the plastic substrate, and a barrier layer coupled to the holographic recording material layer;
- exposing the holographic recording material layer coupled to the plastic substrate to an interference pattern formed by at least one coherent light source;
- and
- dissolving at least a portion of the barrier layer.
Dependencies are inferred from the claim text.