本文论述了真空白炽灯内总压力与寿命变化的关系。分析了水汽、氧气,碳氧化物、氢气以及其他气体对灯泡性能的影响。测试了各种残气组份随寿命的变化情况。介绍了灯泡中传统使用的红磷吸气剂的作用机理及其不足之处,指出对灯丝工作温度较高的场合采用Zr—Al吸气剂,在防止灯泡早期发黑,延长灯泡寿命等方面有明显效果。 This article discusses the relationship between the total pressure in a vacuum incandescent lamp and its change of life. The effects of moisture, oxygen, carbon oxides, hydrogen and other gases on bulb performance were analyzed. Various residual gas components were tested for changes with their lifetimes. Introduced the traditional use of red phosphorus in the light bulb getter mechanism and its inadequacies, pointed out that the filament temperature higher occasions using Zr-Al getter, to prevent the early light bulb black, light bulb to extend the life and so on Have obvious effect.