Invisible 3D barcode to detect counterfeit pills

Ben Whiteside, University of Bradford – BBC.
The British company Sofmat and the University of Bradford engineers have created a 3D barcode invisible to the naked eye and undetectable by touch. The codes consist of a series of small indentations with accurate and slightly different depths, allowing billions of possible combinations. This own unique barcode could be affixed to the pills to tackle drug counterfeiting.
Unveiled at the British Science Festival in Bradford on Sept. 9th, this system could be set up during the drug manufacturing and would be added on each tablet. No bigger than a pinprick, the code could then be read using a scanner in hospitals or medical centers before being given to patients and equals to the batch and type of pill.
This new system could also help address the counterfeiting problem in other industries like food, electronics, medical implants and cars.
Source: The Guardian, BBC News
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