通过对折射、衍射和波长变短效应的分析，指出了计算人眼分辩本领的正确方法。
Through the analysis of refraction, diffraction effects and shorten effect of wavelength, a correct method of calculation resolving power of the human eye is indicated.
用等光程方法，对棱镜折射率和色分辩本领公式两个公式给出一种新的推导方法。
With the method of equivalent optical path, the refracting power and dispersive power of the prism are derived.
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