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金卤灯发光过程
金卤灯内充有少量金属卤化物和气体，从触发到正常发光需一分多钟，大致分为三阶段。 1.触发阶段：金属卤化物灯内无灯丝，只有两个电极，直接加上工作电压不能点燃，必须先加高压使灯内气体电离。高压由专用触发器产生。
Metal halide lamp is filled with a small amount of metal halide and gas. It takes more than one minute from triggering to normal luminescence, which can be roughly divided into three stages. 1. Trigger stage: There is no filament in metal halide lamp, only two electrodes. It can not be ignited by adding working voltage directly. High voltage must be added first to ionize the gas in the lamp. High voltage is generated by special trigger.
2.着火阶段：灯泡触发后，电极的放电电压进一步加热电极，形成辉光放电，并为弧光放电创造条件。 3.正常发光阶段：在辉光放电的作用下，电极温度越来越高，发射的电子数量越来越多，迅速过渡到弧光放电。随着温度进一步升高，灯的发光越来越强直到正常，全部过程需一分多钟，如果启动电流大，电源启动性能好，此过程可短些。
2. The ignition stage: after the lamp triggers, the discharge voltage of the electrode further heats the electrode to form glow discharge and create conditions for arc discharge. 3. Normal luminescence stage: under the action of glow discharge, the temperature of electrode is getting higher and higher, and the number of electrons emitted is increasing, which rapidly transits to arc discharge. As the temperature rises further, the luminescence of the lamp becomes stronger and stronger until it is normal. The whole process takes more than one minute. If the starting current is large and the starting performance of the power supply is good, the process can be shorter.
Metal halide lamp is filled with a small amount of metal halide and gas. It takes more than one minute from triggering to normal luminescence, which can be roughly divided into three stages. 1. Trigger stage: There is no filament in metal halide lamp, only two electrodes. It can not be ignited by adding working voltage directly. High voltage must be added first to ionize the gas in the lamp. High voltage is generated by special trigger.
2.着火阶段：灯泡触发后，电极的放电电压进一步加热电极，形成辉光放电，并为弧光放电创造条件。 3.正常发光阶段：在辉光放电的作用下，电极温度越来越高，发射的电子数量越来越多，迅速过渡到弧光放电。随着温度进一步升高，灯的发光越来越强直到正常，全部过程需一分多钟，如果启动电流大，电源启动性能好，此过程可短些。
2. The ignition stage: after the lamp triggers, the discharge voltage of the electrode further heats the electrode to form glow discharge and create conditions for arc discharge. 3. Normal luminescence stage: under the action of glow discharge, the temperature of electrode is getting higher and higher, and the number of electrons emitted is increasing, which rapidly transits to arc discharge. As the temperature rises further, the luminescence of the lamp becomes stronger and stronger until it is normal. The whole process takes more than one minute. If the starting current is large and the starting performance of the power supply is good, the process can be shorter.
