Method for holographic mastering and replication
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United States of America Patent
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Jul 23, 2019
Grant Date -
Jul 26, 2018
app pub date -
Aug 5, 2015
filing date -
Aug 8, 2014
priority date (Note) -
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Abstract
A method for producing holograms with a multiplicity of holographic prescriptions from a single master is provided. A multiplicity of holographic substrates each having a first hologram is stacked on a second holographic recording medium substrate. The first hologram is designed to diffract light from a first direction into a second direction. When expose to illumination from the first direction zero order and diffracted light from each first hologram interfere in the second holographic recording medium substrate forming a second hologram. The second hologram is then copied into a third holographic recording medium substrate to provide the final copy hologram.
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