Holographic device
AssigneeUniversity Court of the University of St Andrews
InventorsAndrea Di Falco, James Burch
Life of this patent
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Abstract
A holographic security or identification device (10) comprises an object, or a flexible substrate (12) configured to be conformable to a desired, curved shape; and a plurality of structures (14) formed on or in the object to have a desired curved configuration, or formed in or associated with the substrate and arranged to adopt a desired curved configuration when the substrate is conformed to a desired shape, wherein the plurality of structures (14) are configured to receive light (20) of a selected at least one wavelength or range of wavelengths and to produce, using the received light, a desired holographic image (22) for security or identification purposes when in the desired configuration.
Claims48
A holographic security or identification device comprising:
- an object, or a flexible substrate configured to be conformable to a desired, curved shape;
- and
- a plurality of structures formed on or in the object to have a desired curved configuration, or formed in or associated with the substrate and arranged to adopt a desired curved configuration when the substrate is conformed to a desired shape,
- wherein the plurality of structures are configured to receive light of a selected at least one wavelength or range of wavelengths and to produce, using the received light, a desired holographic image for security or identification purposes when in the desired configuration.
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A method of producing a holographic or identification device comprising:
- providing an object, or a substrate layer configured to be conformed to a desired curved shape;
- providing a plurality of structures on or in the object to have a desired curved configuration, or in or associated with the substrate layer and arranged to adopt a desired curved configuration when the substrate layer is conformed to a desired shape,
- wherein the plurality of structures are configured to receive light of a selected at least one wavelength or range of wavelengths and to produce, using the received light, a desired holographic image for security or identification purposes when in the desired configuration.
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A method of retrofitting a banknote handling apparatus for use with a banknote comprising a holographic security or identification device as claimed in any of the preceding claims, wherein the banknote handling apparatus comprises a roller comprising a curved surface corresponding to the desired, curved shape of the device, and wherein the retrofitting comprises:
- providing or configuring a processing resource to determine at least one property of a produced holographic image and/or a degradation of at least one property of a produced holographic image.
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Dependencies are inferred from the claim text.