The results indicate that the information about phase change of the input object function can be obtained under given conditions, when it is illuminated by an incoherent quasi - monochromatic source.
分析表明，在一定条件下，可得到输入物函数相位变化率分布的信息。
A red highlight LED was used as quasi-monochromatic light source for analyzing the diffraction property of an axicon in quasi-monochromatic light.
为了分析准单色光照射轴锥镜的衍射特性，用红色高亮发光二极管作为准单色光源。
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