Glasses That See Invisible Ink

If you’re looking to impress your friends at the next poker game, you may want to try invisible ink clear glasses. These glasses are a great tool to help you see marked cards, and win your next poker hand. The good news is, they look just like regular sunglasses, so no one will know you’re using them to cheat!

How does the ability to detect invisible ink using glasses compare with other methods?

UV-protected lenses allow the wearer of glasses to see Invisible Ink marks on cards. These glasses also include red filters to allow the wearer see luminous ink marks on cards. This makes them a great choice for card games such as poker, blackjack and roulette.

There are several ways to make invisible ink visible, including heat-activated and chemical-activated inks. The latter typically involves adding a chemical that reacts with the ink to reveal it. As an example, phenolphthalein (an indicator) changes colors when it reacts with bases (like sodium carboxylate), turning water into “koolaid” red.

Some invisible inks work by being activated by light. These types of inks are activated by phosphorescence, fluorescence or a specific wavelength. For example, 365nm is used for UV-based inks while 254nm is used for luminous inks. You can buy many different brands of inks online or at magic shops and novelty stores. Some inks can also be formulated to resist heat, chemicals and water.