| what is lighting lighting small knowledge? What are the common light source? - China lighting network

Electric light source is a device that converts electrical energy into light energy, usually called the electric light source the light. Light is electromagnetic wave, electric light source the light and the light of the nature are electromagnetic waves. A 380 - 780 nm wavelength of visible light electric light source is called a lighting source. Ultraviolet and infrared light is invisible light, these two kinds of light electric light source is called radiation light source. Electric light source is the main part of the lighting system, has made great development since 200. Electric light source currently has more than 3000 kinds of varieties and specifications of more than 50000, towards the light of modern civilization for mankind cultural era created favorable conditions. A wide variety of electric light source, according to the principle of work classification, can be divided into solid light emitting light and gas discharge light emitting light two kinds big. Specific types as shown in the following a solid light source 1. Thermal radiation light source is divided into incandescent lamp ( Vacuum incandescent lamp, inflatable incandescent lamp) Tungsten halogen lamp ( Halogen lamp, the bromine tungsten lamp) 2. Electroluminescent light source is divided into electroluminescent lamp ( EL glow plates) Semiconductor light emitting light ( 领导) Two gas discharge light source 1. Neon glow discharge lamps, neon 2. Arc discharge low-pressure lamp ( Fluorescent lamp, low pressure mercury lamp) High pressure lamp ( Carbon arc lamp, high pressure mercury lamp, metal halide lamp, high-pressure xenon lamp, high-pressure sodium lamp) YanZhiXiang

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