Patent ID: 8725447

Claim:
A process for correcting a wavefront analyzer that detects a signal from an incident wavefront to be analyzed (FO), said signal thus detected providing local phase and intensity information on the wavefront to be analyzed, the process comprising: calculating local spatial gradients of an intensity of the wave front to be analyzed, in at least one spatial direction and at a given time, each local spatial gradient of the intensity at a given spatial position being calculated from intensity values, taken at different spatial positions but only at the given time, of the wavefront to be analyzed; correcting, with a correction module attached to and cooperating with the wavefront analyzer, a computation of a phase of the wavefront to be analyzed (FO) as a function of the local spatial gradients, at the given time, of the intensity of the wavefront to be analyzed (FO), but not as a function of other local spatial gradients, at another time, of the intensity of the wavefront to be analyzed (FO).