Device, comprising at least a) a matrix of optical concentrators, such that the concentration matrix comprises: i) hollow columns, whose internal reflective faces (5, 31) are possibly parallel, but preferably diverging to form a diverging cone whose base is located at the bottom of the column thus constituting an reverse integration cone, and such that a cross-section of a column of a concentrator has any geometrical shape, and such that the bottom of each column comprises an orifice for passing at least one concentration optical fibre the bottom of each column preferably having conical shape, with at the summit of the conical shape said orifice, and that ii) each column comprises, at least one prismatic structure (25, 47) having, by longitudinal section passing by the axis, a triangular shape, said prismatic structure being produced in any transparent material, and that iii) each column comprises at least one light injection device in an optical fibre (6, 55), b) at least one matrix of optical fibres (2, 7), c) at least one optical collector comprising at least one collection cone (35, 45), each column of the concentrator enabling the capture of solar radiation and the concentration in one of said optical fibres forming a bundle of optical fibres, each optical concentrator column of the matrix being configured to make converge or deviate the sun light, so that this light is captured by the optical fibres of the matrix of fibres, said optical fibres being connected to said collector to concentrate the light across the collector into at least one optical fibre or at least one light ray at the output of the collector to which said optical fibres are connected. a) a matrix of optical concentrators, such that the concentration matrix comprises: i) hollow columns, whose internal reflective faces (5, 31) are possibly parallel, but preferably diverging to form a diverging cone whose base is located at the bottom of the column thus constituting an reverse integration cone, and such that a cross-section of a column of a concentrator has any geometrical shape, and such that the bottom of each column comprises an orifice for passing at least one concentration optical fibre the bottom of each column preferably having conical shape, with at the summit of the conical shape said orifice, and that ii) each column comprises, at least one prismatic structure (25, 47) having, by longitudinal section passing by the axis, a triangular shape, said prismatic structure being produced in any transparent material, and that iii) each column comprises at least one light injection device in an optical fibre (6, 55), i) hollow columns, whose internal reflective faces (5, 31) are possibly parallel, but preferably diverging to form a diverging cone whose base is located at the bottom of the column thus constituting an reverse integration cone, and such that a cross-section of a column of a concentrator has any geometrical shape, and such that the bottom of each column comprises an orifice for passing at least one concentration optical fibre the bottom of each column preferably having conical shape, with at the summit of the conical shape said orifice, and that ii) each column comprises, at least one prismatic structure (25, 47) having, by longitudinal section passing by the axis, a triangular shape, said prismatic structure being produced in any transparent material, and that iii) each column comprises at least one light injection device in an optical fibre (6, 55), b) at least one matrix of optical fibres (2, 7), c) at least one optical collector comprising at least one collection cone (35, 45), each column of the concentrator enabling the capture of solar radiation and the concentration in one of said optical fibres forming a bundle of optical fibres, each optical concentrator column of the matrix being configured to make converge or deviate the sun light, so that this light is captured by the optical fibres of the matrix of fibres, said optical fibres being connected to said collector to concentrate the light across the collector into at least one optical fibre or at least one light ray at the output of the collector to which said optical fibres are connected.