传统荧光灯一般为直管或弯管 ,两个电极封接在放电腔的两端。电极一般由涂有含钙、锶、钡等混合稀土氧化物发射材料的钨丝制成。电极的使用对灯的设计和性能有很大的制约。灯的寿命受发射层损耗率的限制 ,并且很大程度上受到所用镇流器类型和工作频率的影响。在工作周期为 3小? Traditional fluorescent lamps are usually straight or elbow, the two electrodes sealed in the discharge chamber at both ends. The electrode is generally made of tungsten wire coated with a mixed rare earth oxide emitting material containing calcium, strontium and barium. The use of electrodes has great constraints on the design and performance of the lamp. The lamp life is limited by the emissivity loss of the emissive layer and is largely influenced by the type of ballast used and the operating frequency. In the work cycle is 3 small?