本文提出将散斑干涉术的全场分析放在部分相干光处理系统中进行。其优点是能减小散斑的大小和反衬以提高全场条纹的质量;能辨认零级条纹为全场分析带来方便。另外,用不同颜色的滤波小孔,可以同时得到两组以上沿不同方向颜色编码的全场条纹。 本文讨论了在部分相干光处理系统中刚体面内转动散斑照相的全场分析。最后给出了零级条纹判读等一系列实验结果。

A method to analyse the whole-fringe patterns of laser speckle interference in the partially coherent and optical 1/2 processing system is proposed. With this method we can improve the quality of fringe patterns, and find the zero order fringe as well as more than two groups of colour encoding fringe patterns in different directions. Experimental results are also given in the article.