Science

Anti-counterfeiting 3D barcodes could be molded into products

Anti-counterfeiting 3D barcode...
A pharmaceutical tablet, bearing one of the 3D barcodes
A pharmaceutical tablet, bearing one of the 3D barcodes
View 1 Image
A pharmaceutical tablet, bearing one of the 3D barcodes
1/1
A pharmaceutical tablet, bearing one of the 3D barcodes

Although barcodes are currently utilized mainly to keep track of merchandise, they may soon also be used to detect counterfeit goods. We're not talking about ordinary barcode labels, however. Instead, British scientists at Sofmat Ltd and the University of Bradford have devised a new 3D barcode that's actually molded into plastic or composite items.

The system utilizes tiny pins that are integrated into the mold from which the product is made. Each pin can be set to different heights via micro actuators, with each 0.4-micron increment in height corresponding to a specific letter or numeral (0 - 9). The current prototype consists of a four-pin array, allowing for over 1.7 million unique configurations.

The resulting indentations in the finished item are difficult to see and impossible to feel, yet can be read using a white light interferometer or a laser-scanning confocal microscope – a compact laser scanner is in the works, which could wirelessly transmit readings to a smartphone or tablet.

Unlike the case with existing barcode labels, it is believed that counterfeiters would have great difficulty copying the 3D barcodes. They would also need to know the genuine product's 3D barcode in the first place, which would require one of the specialized scanners. Additionally, multiple codes could be included on each item, and the pins could even have unique patterns etched into their heads, which would be transferred onto the product.

The technology could also be applied to non-molded materials, with the patterns being stamped or embossed into their surface. It is hoped that the barcodes could eventually be used on everything from cars to smartphones to pharmaceuticals.

Source: University of Bradford

4 comments
Light_Lab
Been there, done that, and the answer was "Nope": https://en.wikipedia.org/wiki/Soft_lithography
englishfil
It might find traction in the component market, or with customs & excise, but for the average consumer a marking you cannot see means nothing. By way of illustration, how many consumers know where to look, with a magnifying glass, for the etched codes on razor heads? There are plenty of fake razors out there because even the visible marking are tricky to find. Additionally, if humans invented it, be very sure humans will find a way to fake it - at a tenth the cost.
S Michael
Counterfeiting of products is a multi Billion dollar problem costing the American manufactures billions of dollars. The public get ripped off by the "phony" goods made in other countries, (not just China). This might work if the manufactures of these devices could make it so a common cell phone app. could read the code of authenticity. Criminals and thieves, have bottom lines also. If it cost to much to "clone" or make the security device, it's just not worth it. Each code of authenticity (COA) would be unique. If a customer "scanned" a product a data base queried could come back as "sold or returned" thus alerting the customer the product might be counterfeit.
Martin Leitner
Wrong way! Instead of wasting millions of dollars in anti-counterfeiting measures and billions of dollars in "inventing" the same things again by others, the world economy should shift to an open source like corporate economy. The time of egoistic capitalists is already declining.