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Neon is the city's beautician, whenever the night falls, the lights on, the colorful neon lights put the city dressed very beautiful.Then, the neon lights is how it invented it is said that the British chemist Ramsey neon lights in an experiment by chance It was one night in June 1898, Ramsey and his assistants were experimenting in the laboratory to check whether a rare gas was conducting electricity.
Ramsey injected a rare gas in a vacuum glass tube, and then enclosed in a vacuum glass tube in the two metal electrodes connected to the high-voltage power supply, concentrate on the observation of the gas can conduct electricity.
Suddenly, an unexpected phenomenon occurred: a rare gas injected into the vacuum tube not only began to conduct electricity, but also issued a very beautiful red light. This magical red light to Ramsay and his assistant pleasantly surprised, they opened the neon The door to the world.Lamsai to this can be conductive and the red light of the rare gas named neon.His later, he continued to some other gas conduction and the characteristics of the issue of colored light experiments, have found that xenon gas can emit white light , Argon energy
The method of making neon lights is to use low-melting sodium-calcium silicate glass lamps, according to the need to design different patterns and text, with torch for processing, and then sintering electrode, and then vacuum pump, and according to the required color Filled with different rare gases and made of modern neon more refined, and some of the glass tube bent into a variety of folded shape, made into a more moving graphics; also in the lamp wall coated with phosphor, so that Neon lights installed on the automatic ignition, so that the color of the light of the first out, add radiance and beauty to each other, so that the city has become colorful night.Ninx since its inception in 1910, after a hundred years is not bad. Special low-pressure cold cathode glow discharge luminous electric light source, and different from other such as fluorescent lamps, high pressure sodium lamps, metal halide lamps, mercury lamps, incandescent and other arc lamps.Nintern is by filling the glass tube low pressure inert gas, High voltage electric field cold cathode glow discharge and luminous. Neon light color is filled by the inert gas spectral characteristics: fluorescent neon filled neon, neon red light; fluorescent neon filled with argon and mercury, Neon light blue, yellow and other light, these two categories are working on the neon lights by the gas atoms excited by the radiation light.
Emitting a blue light, helium can emit yellow light, krypton gas can issue a dark blue light ... ... different gases can issue different shade, colorful, like the beautiful rainbow of the sky. Neon also hence the name.