一、前言在通常情况下提起透镜,我们就会想到它是一个表面被磨成球面的玻璃镜体。我们日常所见到的透镜一般都是球面的,简单的有眼镜镜片等,复杂的有高级照相机所使用的透镜等。但是,让我们来看一下探索宇宙的天体望 First, the introduction In the usual case of the lens, we will think of it is a surface was ground into a spherical glass body. The lenses we see on a day-to-day basis are generally spherical, with simple eyeglass lenses, and sophisticated lenses such as those used by advanced cameras. But let us look at the astrophotography of the universe