1. A confocal microscopy method for acquiring a confocal image of an object to be analyzed, comprising: illuminating the object to be analyzed by a group of light beams concentrated on positions in a focus plane, the positions being arranged on the focus plane according to an ordered grid of light sources, carrying out a complete illumination of the area under examination by systematically displacing (X) the grid, so as to cover all interposed spaces, acquiring a confocal optical section by first of all acquiring through an image electronic sensor a set of partial images corresponding to each position of said ordered grid of light sources on the focus plane, and calculating said confocal image by taking only maxima of transmitted light (Max) among all image elements of each captured confocal image, said image being expressed as EQU confocal image=Max(x).