Where do the different colors in Neon come from?
The initial color source for luminous tubing is an inert gas, which emits a characteristic color when electricity is applied. The two most common gases are neon and argon/mercury. Pure neon emits a fiery red color, while the argon/mercury emits a subdued blue color. A variety of fluorescent powders (phosphors) may be painted or baked to the inside walls of the tubing to produce different colors and shadings such as pink, turquoise and green in cool to warm shades. Luminous tubing is also available in colored glass such as deep clear reds, blues and greens. The lavishly saturated colors produced in this type of tubing are sometimes referred to as “exotic” or “Euro” glass. The quality and color of the light may be altered with the addition of fluorescent phosphors to the colored glass. Q: How does a luminous tube (Neon) produce light? A: The idea behind a neon light is simple. Inside the glass tube there is a gas like neon, argon or krypton at low pressure. At both ends of the tube there
