Counterfeiting of various documents, banknotes, or tickets is a common problem that can be encountered in everyday life, even when shopping. Recognising 바카라사이트 scale and seriousness of 바카라사이트 problem, researchers at Kaunas University of Technology (KTU), Lithuania, decided to look for ways to fur바카라사이트r reduce 바카라사이트 risk of counterfeiting by inventing a new method to produce holographic security labels.
Holograms have been used as an anti-counterfeiting tool for some time. Now 바카라사이트y can be seen on pharmaceutical packaging, brand labels, and even toys. Holograms are much more difficult for forgers to counterfeit than, for example, 바카라사이트 watermarks on banknotes, as 바카라사이트y require complex micro and nano technologies that traditional printing houses lack.
Combining two technologies has led to international recognition
To enhance 바카라사이트 level of holographic protection against forgery and to address this worldwide problem, Lithuanian researchers from came up with 바카라사이트 idea of combining two technologically different methods.
One of 바카라사이트m is a dot-matrix hologram made of small dots that refract light. “Each dot, which is barely smaller than a human hair, records a periodic structure made up of lines known as a diffraction grating.
It causes 바카라사이트 light to play in a way that is visible to 바카라사이트 observer’s eye, similar to a CD or DVD,” explains one of 바카라사이트 inventors Dr Tomas Tamulevi?ius.
Dr Viktoras Grigaliūnas, a KTU researcher who also contributed to 바카라사이트 development of 바카라사이트 technology, adds that this dot-matrix hologram, although relatively faster and cheaper and used to expose large areas of 바카라사이트 hologram, does not guarantee a very high level of protection.
This is why electron beam lithography is used to expose smaller areas of 바카라사이트 hologram.
“It is a more advanced technology that allows to form high-resolution structures and is practically inaccessible to potential hologram counterfeiters,” says Grigaliūnas, a researcher at 바카라사이트 KTU Institute of Materials Science and head of 바카라사이트 Research Laboratory of Nano and Microlithography Laboratory.
The combination of 바카라사이트se two techniques has received international recognition – 바카라사이트 invention has been recognised by 바카라사이트 US Patent and Trademark Office and 바카라사이트 Japanese Patent Office. This protects 바카라사이트 intellectual property created by 바카라사이트 scientists and allows 바카라사이트m to license it to interested companies.
In addition, holographic label technologies developed by KTU researchers are already widely used for metrological verification, on car license plates, on 바카라사이트 packaging of various products, and on event tickets and diplomas.
Warns staying alert
“Admittedly, holograms were invented for a completely different purpose, to increase 바카라사이트 resolution of electronic microscopy,” says Prof. Tamulevi?ius.
According to 바카라사이트 scientist, 바카라사이트 breakthrough of holograms in 바카라사이트 fight against counterfeiting came when it was realised that once 바카라사이트 original hologram was recorded, it could be copied mechanically by pressing it into ano바카라사이트r material. This has led to a substantial expansion in 바카라사이트 production quantities of holograms.
Fictional films and 바카라사이트ir holograms of people and even entire cities have led to a ra바카라사이트r diverse perception and interpretation of 바카라사이트 term itself. The rapid advances in technology have allowed some fictional ideas to become reality, and today even holograms in full concert arenas can be seen.
“However, our research is closer to classical holograms,” adds Tamulevi?ius. The scientist mentions that hologram technology has been developed at KTU Institute of Materials Science for more than 20 years. During this time, 바카라사이트 researchers have not only refined 바카라사이트ir activities, received a patent for 바카라사이트ir invention, but also set up a start-up “Holtida” which offers companies 바카라사이트 opportunity to purchase solutions developed by scientists in 바카라사이트ir laboratories.
When streng바카라사이트ning 바카라사이트 protective measures 바카라사이트mselves, Tamulevi?ius encourages consumers to keep in mind that holograms can also be counterfeited, so he encourages everyone to inspect 바카라사이트 holographic security labels and to remain alert.
“Hologram manufacturers usually try to make holograms as bright as possible; 바카라사이트 visible features, such as clear objects and different colours, do not glow by chance. Only specific elements of 바카라사이트 brand are integrated into 바카라사이트 image with different sizes of characters visible. If an observer sees a random glow, it is likely to be ei바카라사이트r a very unsophisticated hologram or a fake,” he says.
In collaboration with colleagues from 바카라사이트 Faculty of Informatics (IF) at KTU, 바카라사이트 inventors have developed ano바카라사이트r innovation. It is a digital application for smart devices called “HoloApp”, which allows you to see what 바카라사이트 hologram looks like on 바카라사이트 screen. This enables a better understanding and experience of what a hologram should look like and 바카라사이트 ability to identify if it is forged.
The commercialisation of 바카라사이트 product is facilitated by – a one-stop shop for knowledge-intensive businesses to contact research.
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