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Optical Fourier-4f plant - Filtering and reconstruction. 2.6.12-00

Get the concept of:
Fourier transform lenses, Fraunhofer diffraction, refractive index, the principle of Huygens, the effect of the Debye-Sears

Experiment:
When light propagates in the electric field in the object plane is the Fourier transform of the 4f with two lenses, with light filtered by the respective diaphragms.