Why do neon lights come in all kinds of colors?

At night, the streets of the city will be illuminated by colorful neon lights. Do you know why neon lights are bright and have different colors? Do you know why neon is called neon?

Why is neon called neon?

Neon is a semi-English transliteration. It is called neon lamp (neon lamp). The pronunciation of neon is similar to the English word neon and has the meaning of rainbow in Chinese.
Why are neon lights bright?

In modern cities, whenever night falls, colorful neon lights will emit charming brilliance, embellishing people's lives.

The first neon sign in the world is the red neon sign, which was invented in 1898 by the British chemist Ramsay and his assistant. They extracted a rare gas called atmosphere from the air, and then filled the transparent tube that pumped out the air, and passed a current on the two ends of the tube, so the atmosphere emitted a bright red light under the action of the current.

Later, scientists successively invented various colors of phosphors according to this experimental principle. The fluorescent powder is applied to the inner wall of the lamp tube, and then the air in the tube is pumped out and filled with air, and other colors of neon can be created. For example, a light tube coated with blue phosphor is injected into a pink neon light. If you replace the gas in a tube coated with blue phosphor with nitrogen and mercury, it magically turns pink into blue neon; In a tube coated with green phosphor, the atmosphere is changed to nitrogen and mercury, and the orange red becomes green. Neon lights are becoming more and more colorful, making the night scene of the city more colorful.

What's the difference between neon lights and LED lights?

One is fluorescent, the other is diode-emitting. Relatively speaking, leds save electricity. Neon lights rely on the electrode heads at both ends of the light to burn the rare gas in the tube under the high voltage field, which is different from the ordinary light source that must burn the tungsten wire to a high temperature to emit light, causing a large amount of electrical energy to be consumed in the form of heat.

LED light belt refers to the LED assembly in the ribbon FPC (flexible circuit board) or PCB hard board, because of its product shape like a belt named, LED lights have been the mainstream of home decoration.