Category: home appliances small home appliances

Question:
Why do we use a fluorescent off the post or whitish? ? In the dark to see very white;; are luminous like? ?

Answer:
fluorescent light is achieved electronically against mercury vapor produces ultraviolet rays, ultraviolet radiation and then the phosphor on the tube wall to stimulate it produces visible light. In the customs of that moment as a result of temperature differences and by the light-emitting phosphor inertia, it will issue visible in the night, but it is weak, TV screen is the same. A long time, also is gone

Answer:
has always been such a, ah, several moments will automatically not be hungry, and with the flowers, like, ah, long years of dispersed

我们用的荧光灯为什么关了后还是发白？？

分类:家电 小家电

问题:
我们用的荧光灯为什么关了后还是发白？？在黑暗中看到很白；；有夜光似的？？

回答:
荧光灯的发光是靠电子打击水银蒸气产生紫外线,紫外线再照射灯管内壁上的荧光粉，激发它产生可见光。在关的那一刻由于由温度的差异和荧光粉的发光惯性,它会在夜里发出可见光,但很微弱,电视机的荧光屏也一样.时间长了也就没了

回答:
本来就是这样的啊,过一会会自动没有的饿,跟花香一样啊,漫漫的散去,2007-08-05