Infrared Sunglasses for Marked Playing Cards

It is easy to perform a trick with poker using infrared lenses. What about infrared lenses to read the invisible ink marked back of cards? If you’re not used to wearing contact lenses, this would be the perfect choice. Infrared contacts lenses and infrared shades work on the same principle.

Light is perceived by the eye within a specific range. Light waves that are beyond the range of our eye can’t be seen by us, and so we don’t see them. As an example, we know that our marked playing cards are printed with original cards using a professional printer and marked with invisible ink kits. Because the ink can’t be seen by the human eye, special tools are needed to read the marks. The ink that we use to mark cards contains infrared, which our eyes can’t detect. This principle is why we converted our normal sunglasses to infrared glasses. To make the glasses look more normal, we added a layer normal polarized.