Mercury lamp
Mercury lamp also known as mercury lamp, is a kind of internal mercury vapor containing the lamp, the way the gas discharge light. The lamp is made of heat-resistant glass and has electrodes at both ends. The air is pumped and filled with mercury and a small amount of argon. After the power is applied, the mercury evaporates and is excited by the electrons. The current mercury lamp has "low pressure", "high pressure" and "ultra high pressure" three types. High-pressure mercury lamp light-emitting high efficiency, long life, but more than ultraviolet light, red light, can be used as a light source of Shaitu machine; tube painted fluorescent material after the white, that is, high-pressure mercury fluorescent lamps can be used for square and street lighting. Low-pressure mercury lamp issued strong ultraviolet light, can be used as sterilization; coated with fluorescent material, that is, fluorescent Ultra-high pressure mercury lamp is a point light source for optical instruments. ...