Unlike a normal lens, which compresses or changes the actual shape of a light wave through diffraction, a time lens magnifies or compresses the time of a light wave through dispersion.
不同于通常的透镜通过衍射来压缩或者改变光的形态，时间透镜通过光的弥散放大或者压缩光波的时间。
The blue nevus and Mongolian spots are examples of this light dispersion effect.
蓝痣和蒙古斑就是这种光散射效应的例子。
Light cable dispersion is a very important characteristic of light cable communication.
光纤色散是光纤通信的一个很重要的特性。
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