Method for acquiring diffraction pattern generated based on arbitrarily-shaped aperture
A technology of diffraction patterns and arbitrary shapes, applied in image data processing, 2D image generation, instruments, etc., can solve problems such as it is difficult to obtain Fraunhofer diffraction patterns, and it is difficult to give analytical solutions
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[0019] The present invention will be further described below in conjunction with the accompanying drawings and specific examples. The accompanying drawings are only for illustrative purposes, rather than limiting the application scope of the present invention.
[0020] figure 1 A flow chart of a method for obtaining an aperture diffraction pattern of any shape provided by the present invention can be roughly divided into four steps: (1) adopt drawing software to make an aperture pattern of any desired shape; (2) place the aperture pattern on Paste on the blank interface of the Windows drawing tool, move to the center of the blank interface, use the fill button to fill the aperture with black, and save it as a 256-gray-level color bitmap that can be read by MATLAB software; (3) call MATLAB software The imread function reads the 256 grayscale color bitmap to obtain its corresponding grayscale matrix. The matrix only contains two grayscale values of 0 and 255. Divide the graysc...
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