本文对矩形光栅编码图片的衍射零级与其它各级单独所成的象,其衬度能够反转的现象,提出了新的理论分析。
A new theoretical analysis of the contrast reversal images for the zeroth and other diffraction order encoded by a rectangular grating is given.
其衍射斑点的形态、衬度及条纹变化反映了金刚石晶体结构变形的程度和复杂性。
Contrast and the interior structure of reflexes in Laue patterns indicate the degree and complexity of crystal deformation.
在国内外普遍使用的细栅距幅光栅叠栅条纹系统中,衍射效应是很明显的,这是造成叠栅条纹信号的衬比(度)和正弦性不好的主要原因。
In an amplitude grating system of small grid pitch, the diffractive light is the main cause to deteriorate the contrast and sinusoidal property of Moiré signals.
在国内外普遍使用的细栅距幅光栅叠栅条纹系统中,衍射效应是很明显的,这是造成叠栅条纹信号的衬比(度)和正弦性不好的主要原因。
In an amplitude grating system of small grid pitch, the diffractive light is the main cause to deteriorate the contrast and sinusoidal property of Moiré signals.
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