Abstract: A diode lighting module comprising both a diode matrix mounted on a support plate and heat dissipator means for dissipating the heat given off by the diode matrix, includes a metal plate having an outside face in contact with the support plate and an inside face supporting a cellular metal foam including a plurality of calibrated holes passing through each cell in two perpendicular directions, and a vessel-forming box filled with the cellular metal foam and for which the metal plate constitutes a lid. The box has inlet and outlet orifices passing through the box to receive a cooling liquid, and a separator defining two separate cooling fluid flow zones in the cellular metal foam, a cooling fluid feed zone and a cooling fluid discharge zone, with passage from one of the zones to the other taking place through a cutout in the separator.

Abstract: A diode lighting module comprising both a diode matrix mounted on a support plate and heat dissipator means for dissipating the heat given off by the diode matrix, includes a metal plate having an outside face in contact with the support plate and an inside face supporting a cellular metal foam including a plurality of calibrated holes passing through each cell in two perpendicular directions, and a vessel-forming box filled with the cellular metal foam and for which the metal plate constitutes a lid. The box has inlet and outlet orifices passing through the box to receive a cooling liquid, and a separator defining two separate cooling fluid flow zones in the cellular metal foam, a cooling fluid feed zone and a cooling fluid discharge zone, with passage from one of the zones to the other taking place through a cutout in the separator.