Invisible ink is quite popular among those who want to joke others with invisible ink marked cards or in magic shows and poker tricks. Many guys want to get the invisible ink for trying to mark playing cards themselves.
Luminous ink Infrared UV Readers are used to view luminous ink marks on red back marked playing cards. Usually people may get it for cheating in poker games or magic tricks.
The luminous ink glasses
are high end Aviator sunglasses with a built in crafted filter in the lens. The Infrared UV filter is what enables the sunglasses to see the luminous ink markings. Without it, the glasses can't read the invisible ink marks at all.