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US 8,908,249 B2Granted
Wide angle hologram device illuminated with a near field source and method for manufacturing same
AssigneeClaudelli Productions, Inc
InventorsJoseph J. Ciaudelli, Thomas Cvetkovich
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Abstract
A method of manufacturing a master for producing a hologram device is provided. The holographic image reconstructs when the photosensitive film of the hologram device is struck by a beam of light from a wide angle being defined relative to a perpendicular line to a surface of the photosensitive film.
Claims15
A wide angle near-field illuminated hologram device comprising:
- a photosensitive film;
- and
- a holographic image recorded in the photosensitive film;
- wherein the holographic image reconstructs when the film is struck by a beam of light from a wide angle being defined as a predefined angle that falls within a range of 75 degrees to 90 degrees, inclusive, as an absolute value relative to a perpendicular line to a surface of the photosensitive film;
- and
- wherein the holographic image is reconstructed when a light from a near field source, defined as a source that is positioned closer to the hologram than a largest dimension of the hologram device itself, illuminates the photosensitive film at the wide angle.
3 more elements
Dependencies are inferred from the claim text.