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Why can neon lights emit colorful light?Neon Flex Production

source:Led Neon Flex Popular:Silicone Neon release time:2021-10-14 Article author:sznbone

  Why can neon lights emit colorful light?

  When night falls, colorful neon lights are lit up on the streets of the city, dressing up the entire city at night to be extraordinarily beautiful, showing the prosperous scene of the city. Why is the neon light called this name? This has to talk about its source.

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  As early as 1898, British chemists Remsey and Travers, after chemically removing oxygen and nitrogen in the air, discovered a strange and rare gas in liquid air. When this gas is sealed in a semi-vacuum glass tube and current is applied to both ends of the glass tube, the original colorless glass tube emits red light. They call this newly discovered gas "neon". Neon means "new" in Greek. The Greek pronunciation of "new" is "neon". Neon also means color, so this "new light" "Is called "neon". In this way, neon lights were born.

  Later, people thought that only red for neon lights was too monotonous, so colorful phosphors such as blue, green, white, yellow, and purple were invented one after another. The blue phosphor was painted on the inner wall of the glass tube, and the glass tube was bent. After making the required characters or patterns, install electrodes, and evacuate the air in the glass tube, and then put in neon gas, the neon light will emit pink; in the tube coated with blue phosphor, Put in argon and mercury, the neon light will emit bright blue; put neon in the tube coated with green phosphor is orange-red; if you change the neon gas to argon and mercury, the neon light will emit green Empty. Through different collocations, the neon lights can emit colorful lights after being energized.

  The luminous principle of a neon lamp after being energized is similar to that of lightning in the sky, and it is also a gas discharge phenomenon. When the tube is energized, the gas molecules gain energy and are continuously ionized into free electrons (negatively charged) and positive ions (positively charged). At the same time, the opposite process is constantly going on, positive ions and electrons recombine to form molecules. In the process of recombination, the excess energy is released in the form of light energy. Due to the different composition and structure of different gas molecules, the light energy emitted in the compound is different, so various colors will appear.

  The combination of neon technology and art is getting closer and closer, and it is now used in many areas of our lives. For example, the neon lights are installed on the chassis of cars, and the light emitted increases the safety of traffic. In the construction industry, neon lights make buildings colorful at night, attracting more people's attention. Nowadays, some retail stores, shopping centers and entertainment venues also use neon lights for interior decoration, realizing the combination of function and art.


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