cosine-shaped and elliptical diaphragms are adopted to achieve the apodization of the instrumental function curve,and their respective theoretical instrumental resolutions are calculated.

The resolution of optical microscope and electron microscope is discussed briefly first.

The effect of the nonlinear terms on the resolution power and measuring accuracy of the circular mass spectrometer is analyzed.

The irradiance that altemated by two different intensity point source at image plane of optical instrument were discussed in this article,shows simple change pattern of the resolving power.

The discussion of the irradiance formed by two different intensity point source at image plane of optical instrument were discussed in this article,shows simple change pattern of the resolving power.

The resolving power of microscope and electronic microscope is discussed in brief.

Studying the chromatic resolving power of prism by spectrometer;

In this article, the influences on the spectral line s half-angle width and chromatic resolving power are analyzed when the width of the slit resouce in the prism spectrum instrument can not be ignored and the formula of chromatic resolving power is revised.