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光源的历史就是如何改善灯效率的历史。从100年前爱迪生发明数 Lm/W 的碳丝白炽灯到今天的140—150Lm/W 放电灯,走过了漫长的道路,取得了许多重大研究成果。新光源的开发在很大程度上依赖于材料的开发与改善。在现今技术水平上被认为的白色光源的理论极限为250Lm/W.而目前效率最高的高压钠灯也只有其60%。为了进一步提高灯的效率,急待提高与改善材料性质。
The history of the light source is how to improve the lamp efficiency of the history. From a hundred years ago Edison invented several Lm / W carbon filament incandescent lamps to today’s 140-150Lm / W discharge lamps, went a long way and made a number of major research achievements. The development of new light sources relies heavily on material development and improvement. The theoretical limit of white light sources considered today’s state of the art is 250 Lm / W, while the most efficient HPS lamp today is only 60 percent. In order to further improve the lamp efficiency, the urgent need to improve and improve the material properties.