NOVELTY - The photovoltaic module comprises photovoltaic cells (2) apart from each other in a first plane, optical devices (3) arranged in a second plane, which is parallel to the first plane, an intermediate plate arranged between the photovoltaic cells of the first plane and optical devices of the second plane, and a structure in which the photovoltaic cells, the optical devices, the intermediate plate and the movable support are disposed. Each cell has an active front face (20) to collect and convert photons of incident light rays into electrical energy.    USE - The photovoltaic module is useful in skylight, windows and roofs of a building.    ADVANTAGE - The photovoltaic module has improved strength, and is capable of efficiently providing the optimal electrical energy production with improved performance.    DETAILED DESCRIPTION - The photovoltaic module comprises photovoltaic cells (2) apart from each other in a first plane, optical devices (3) arranged in a second plane, which is parallel to the first plane, an intermediate plate arranged between the photovoltaic cells of the first plane and optical devices of the second plane, and a structure in which the photovoltaic cells, the optical devices, the intermediate plate and the movable support are disposed. Each cell has an active front face (20) to collect and convert photons of incident light rays into electrical energy. Each optical device performs a function identical or different from cells of the first plane. A spacing between the photovoltaic cells of the second plane is equal to a spacing between the photovoltaic cells of the first plane. The optical devices consist of reflector modules spaced from each other, where each module directs the photons of incident light rays in the direction of the front and/or rear active faces of photovoltaic cells of the first plane. The spacing between the reflector modules is equal to the spacing between the photovoltaic cells of the first plane. Each optical device is located at a base of the spacing between two adjacent photovoltaic cells of the first plane. The intermediate plate ensures an optical function of transparency, diffusion, diffraction or filtering. The optical devices are fixed at their rear face and fixed to a support movable horizontally in the second plane. The structure comprises a front plate facing the front face of photovoltaic cells, a back plate positioned opposite to the rear face of optical devices or the movable support, and a frame (62) for sealing front and rear plates of the structure. A displacement of the optical devices or the movable support is ensured by a wheel system and rails laid between the back plate of the structure and the rear face of optical devices or the movable support.    DESCRIPTION OF DRAWING(S) - The diagram shows a schematic view of a photovoltaic module.    Photovoltaic cells (2)    Optical devices (3)    Intermediate plates (4, 5)    Active front face (20)    Frame. (62)