Device and method for measuring and determining the quality of holographic image
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United States of America Patent
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Issued Date -
Apr 26, 2007
app pub date -
Aug 7, 2006
filing date -
Aug 5, 2005
priority date (Note) -
Abandoned
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Abstract
The apparatus and method of the present invention measures diffracted or scattered light to determine the quality of the holographic images/items that have been transferred or reproduced to a film based media. The apparatus comprises one or more illumination and detection devices which illuminate light (e.g., laser) onto the holographic images/items, detect and collect diffracted/scattered light to perform quality inspection of the holographic images/items during a web based holographic manufacturing process.
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