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读了《现代教育技术》今年第二期刊登的刘文锋同志的《低压溴钨灯投影器的缺点与改进》一文,我认为这对改进机子结构,提高机子的使用效率与年限,是一个很好的点子。但是对文中有几点我持有不同的看法,与刘文锋同志商榷。一、文中提出:“改变风扇方向,直接向发光灯泡扇风。”此举我认为不妥。溴钨灯具有发光效率高,使用寿命长,显色性好的特点,其发光效率高是由于溴钨灯采用了较高的灯丝温度(较大的灯丝单位面积功率
I read “Shortcomings and Improvement of Low Voltage Bromine Lamp Projectors” published by Liu Wenfeng in the second issue of this year’s “Modern Education Technology”. I think this is a very good reference to improve the structure of the machine and improve the efficiency and life span of the machine Idea. However, I have different opinions on what I mean in the text, and I discuss with Comrade Liu Wenfeng. First, the article put forward: “change the fan direction, direct the fan to the light bulb. ” This move I think is not proper. Bromine tungsten lamp with high luminous efficiency, long life, good color rendering characteristics of its high luminous efficiency is due to the bromine tungsten lamp with a higher filament temperature (larger filament power unit area