How Does The Rare Gas in The Neon Light Emit Light？

1. What is the gas in the thunderbolt

The thunder rainbow lamp is a kind of cold cathode gas discharge lamp. It is filled with some low-pressure gas and emits light through gas ionization.

So what kind of gas is the thunder rainbow lamp?

It is understood that the heavy rainbow lamp is generally filled with rare gas, and the light colors emitted by different gases are also different: the world's first Gary's rainbow lamp is filled with neon gas, which is also the origin of the heavy rainbow lamp's name (ne in English The transliteration of the name neon is Chonghong).

Later, it was found that other rare gases can also emit light. For example, argon will emit light blue light, and helium will emit reddish light. Some neon lights will also be filled with a mixture of four gases (also three or two) such as neon, argon, helium, and mercury vapor. By changing the relative content of various gases, various colorful heavy rainbow lights can be produced.

2. How does the rare gas in the thunder rainbow lamp emit light?

The rare gas is filled in the neon lamp, and the light is realized by ionizing the rare gas. The specific principle is:

When the external power supply circuit is connected, a high voltage will be generated at the output of the transformer. When this high voltage is applied to the electrodes at both ends of the lightning tube, the charged particles in the heavy tube are accelerated in the high-voltage electric field and fly to the electrodes, which can excite and generate a large number of electrons. These excited electrons are accelerated in the high-voltage electric field and collide with the gas atoms in the lamp tube. When the energy of these electrons colliding with free gas atoms is large enough, the gas atoms can be ionized to become positive ions and electrons. This completes the whole process of lighting up the heavy rainbow lights.

3. What is the nature of rare gases used in Xiaohong lamps?

The use of rare gases for heavy rainbows is a physical property.

The electrons on different electron layers outside the nucleus of the rare gas have different energy level structures. When the electrons transition on different energy levels, they will emit light, and the light emitted by the atoms transitioning between two specific energy levels is the same frequency. Therefore, they will have the same color. The characteristic of rare gases is that they will not chemically react with other substances, and it is extremely difficult to form chemical bonds. This is also the key to their being able to be made into thunderbolts.