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Printing Hidden Elements On Metallic Sheets

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hidden elements

Being able to print two images at the same spot does have certain benefits. EPFL scientists have developed a printing algorithm that makes it possible to print hidden elements on metallic sheets. Two images can be printed together using an inkjet printer, so that only one can be seen at a time from a given angle.

The above video shows how this technology works. This technique can be used to prevent counterfeit items. More information is available here.

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