English The marked cards infrared lenses (also known as luminous readers or invisible ink lenses) are a type of cheating lens that helps poker players to see the invisible markings on the backs of playing cards clearly. These lenses also allow the wearer to see their surroundings and opponents. These contact lenses have the advantage that they maintain the original eye colour and are safe to use. However, it is necessary to soak them in pure water rather than care solution in order to use them for a long time.
This type of contact lens has a small UV filter. The infrared light passes through the mini-UV filter and becomes visible to the human eye. We can then read the invisible marks on the cards. These filters can be used with both plastic and printed playing cards.
This successful cheating operation is reminiscent of a Hollywood film, with its high-tech contact lens, marked cards, corrupt employees at the casino, and the French Riviera. A 56-yearold Italian codenamed Parmesan won 70,000 Euros in one poker session, and then another 21,000 Euros the next. He and his two accomplices, casino workers, used an invisible ink technique that only they saw to mark cards. They used a pair of luminous contacts to reveal both the suits and values hidden in the markings. They were caught by the state police.