METHOD OF ANALYSING LIGHT FIELD WAVE-FRONT Russian patent published in 2011 - IPC G02B26/00 

FIELD: physics.

SUBSTANCE: initial light field is divided into N sections. Sum of amplitude-phase distributions from every section of initial field I_Σ is registered. Sequential conversion of initial field if performed by superimposing headers on section of initial light field with sizes ΔS=ΔX·ΔY and coordinates of centers of said sections X_n, Y_n, where n=1…N. Intensities of said sums are registered for every field sections after each j^th conversion and header is used for phase conversion of initial field N times by trial sequential variation of current phase of initial light field by magnitude of phase substituend n on each section to define ℮∈ 1,2…, N, at which Light field phase increment is determined at center of inlet aperture each section by reiteration Note here that current magnitude of phases is defined as where L is period of averaging.

EFFECT: improved power characteristics at intensity metre inlet.

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