When light strikes on a diffuser surface a new energy redistribution is created. The diffusion patterns depends on the material of the diffuser and how light reach the diffuser. The aim of this project is to characterize a simple and compact system that allows us to obtain transmission patterns of different diffusers in order to make a mathematical, experimental fitted, model of them. After define, and construct the experimental device a first characterization step is done; this steps covers a geometrical, photo-temporal and photo-spatial characterization of the system; with the experimental device well characterized a set of six different diffusers are analyzed obtaining the equations that describe their diffusion patterns.