The invention relates to a light exposure device for treating a living organism"s body, comprising controllable light sources (12) and a central control system (I) of light sources (12). Pursuant to one of embodiments under the present invention, light sources (12) are arranged into groups (IV) and every group (IV) of light sources (12) is coupled to central control system (I) enabling an independent operation of every single group (IV) of light sources (12), and further a system (II) for measuring physiological parameters of a living organism and a physiological parameters controller (V), and wherein measuring system (II) and controller (V) are connected to central control system (I).
