Ruby laser weaknesses in the lining. Ruby lasers were used extensively in tattoo and hair removal, but are being replaced by alexandrite and s in this application. The ruby laser was the first laser to be made functional. Built by Theodore Maiman in 1960, the device was created out of the concept of an "optical maser," a maser that could operate in the visual or infrared regions of the spectrum. In 1958, after the inventor of the maser, Charles Townes, and his colleague, Arthur Schawlow, published an article in the "Physical Review" regarding the idea of optical masers, the race to build
Laser tag recognition for being the Inventor and Founder of the laser tag industry". In 1986, the first "Photon" toys hit the market, nearly simultaneously with the "Lazer Tag" toys from Worlds of Wonder and several other similar infrared and visible light-based toys. "Worlds of Wonder" went out of business around 1988, and "Photon" soon followed in 1989, as the fad of the games wore off. Today there are laser tag arenas all over the world bearing various names and brands, as well as a large variety of consumer equipment for home play and professional grade equipment for outdoor laser tag arenas