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A Theory and Method to Obtain Information of Phase Change Rate of Object

Chen Guanying ( Department of Physics,Northwest Normal University,L anzhou730 0 70 )  
According to the imaging theory of partially coherent light,the intensity distribution atthe outputplane of the Foucaultknife- edge phase testis obtained.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. A method for observing the phase information of objects is given and the imaging cases are analyzed.
【CateGory Index】: O438
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