2sinθ=kλ/d或2dsinθ=kλ称为光栅公式。它表明不同波长的同级主极强出现在不同方位，长波的衍射角较大，短波的衍射角小。
文章运用衍射理论，给出了实际光栅系统分辨本领的修正公式。
This paper applies diffraction theory, has given the corrected formula of the resolving power of actual grating system.
本文给出了不等距光栅衍射光强度分布的一般公式，并引出了衍射—干涉复合因子的概念。
The general formula of the light strength distribution for a varied-line space grating is introduced. The concept of complex factor of diffraction-interference is conducted.
它直接从位相物体振幅透过率的一般公式出发，运用傅里叶积分，求得二进制位相光栅各级衍射光强度的通式。
The series density formulae of the binary phase grating are obtained from the general complex amplitude transmittance formulae through Fourier integral.
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