Security holograms formed using lenticular multichannel image generation device
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United States of America Patent
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Sep 18, 2018
Grant Date -
Nov 14, 2013
app pub date -
Jul 11, 2013
filing date -
May 11, 2007
priority date (Note) -
In Force
status (Latency Note)
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Abstract
We describe methods of mass-producing full color, 3D holograms, potentially incorporating a personalized image, which are particularly suitable for security purposes. Broadly speaking in embodiments a method generates, electronically, an interlaced image comprising a set of different views of a 3D object from different angles. This is projected onto a diffusing screen using coherent light and mapped from the screen into an angularly encoded object beam using a lenticular array. The different views in the angularly encoded object beam are then recorded simultaneously into holographic film using a reference beam.
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