根据菲涅耳衍射近似理论，就菲佐干涉仪中的准直镜和标准镜面形误差对透过检测的影响进行了研究。
With the Fresnel diffraction approximation method, the influences of the collimated lens and standard lens surface errors on the transparence testing are analyzed in Fizeau interferometer.
通过计算两个简单的积分值，可近似表示菲涅耳单缝衍射的相对光强。
The relative intensity of Fresnel single-silt diffraction can be expressed approximately by means of two simpler integrals.
指出全息菲涅耳透镜是一种特殊类型的光栅。分析并说明光栅的标量衍射理论是计算衍射效率的一种近似方法，因此它的应用是有限制条件的。
We show and illuminate that the scalar diffraction theory is an approximation method to calculate the diffraction efficiency of grating, and there are restrictions on its application.
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