METHOD OF ANALYZING WAVE FRONTS OF LIGHT FIELD Russian patent published in 1995 - IPC

FIELD: optical instrument engineering. SUBSTANCE: method concludes in registering intensity of initial radiation at the area of receiving aperture. Then initial light field is subject to Fourrier transform, and intensity of field got is registered. After that initial light field is transformed in amplitude N² times by means of screening specific parts of initial light field. Then intensities of Fourrier spectra are registered N² times at the area of receiving aperture. Phase distribution of light field is determined by means of calculating phase at any point of area of the receiving aperture. EFFECT: improved revision; improved reliability. 3 dwg