How to design the best support of the mirror to ensure the highest accuracy of the mirror surface, which is very significant for the optical and image system of the astronomical telescope.
如何确定镜子的最佳支撑方式，来保证最优的镜面面形精度，这在天文望远镜的光学成像系统中具有重要的意义。
Heretofore, the error of the size of apertures is represented as a relative shift between the focus and the edge surface of the mirror, and then the image quality is computed accordingly.
把口径误差表示为焦点与端面的相对位移，可以定量计算口径误差对象质的影响。
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