漫射面作轴面位移时散斑图样的变化

VARIATION OF THE SPECKLE PATTERNS WITH AIXAL DISPACEMENT OF DIFFUSER

当漫射面作轴向位移时，在一般情况下，自由空间中的散斑图样将发生复杂的变化，但在一些特殊的情况下，只发生相似变化．作者从波动光学理论出发进行了理论计算．

Generally,complex variation of speckle patterns observed in the free space will take place because of the axial displacement of the diffused surfaces.Under certain circumtances,the complicated variation of the patterns can be simlified as resemble variations.In the work,the authers carried out calculation for these simplified case with the theory of the wave optics.