Abstract: Reflective optics for transporting, transforming or correcting a light beam in particular of the laser type, including a mirror receiving the light beam, a primary cooling circuit formed by an intermediate chamber of thermally conductive fluid arranged against the mirror at the rear thereof, and a secondary cooling circuit formed by a thermal heat sink arranged against the intermediate chamber of thermally conductive fluid, the heat sink being either in the form of a cold mass cooled by convection or conduction, or in the form of a plate made from a material with good thermal conductivity, the heat sink having a size and a shape equivalent to those of the reflective optics.

Abstract: The invention relates to a pretreatment process for a brazing composition that comprises metallic particles with a granulometry in the order of the micrometer or nanometer, one or several binders and one or several solvents, said process comprising: a desolvation step of the brazing composition, so as to obtain a desolvated brazing composition, then a compacting step of the desolvated brazing composition so as to obtain a preform of metallic particles, said preform being able to be used for the sintering of an electronic, photonic, thermal or mechanical component onto a substrate, the brazing composition being represented either by a brazing paste, or by a suspension of metallic or metallic oxalate grains in suspension in a solvent.

Abstract: Reflective optics for transporting, transforming or correcting a light beam in particular of the laser type, including a mirror receiving the light beam, a primary cooling circuit formed by an intermediate chamber of thermally conductive fluid arranged against the mirror at the rear thereof, and a secondary cooling circuit formed by a thermal heat sink arranged against the intermediate chamber of thermally conductive fluid, the heat sink being either in the form of a cold mass cooled by convection or conduction, or in the form of a plate made from a material with good thermal conductivity, the heat sink having a size and a shape equivalent to those of the reflective optics.

Abstract: The invention relates to a pretreatment process for a brazing composition that comprises metallic particles with a granulometry in the order of the micrometer or nanometer, one or several binders and one or several solvents, said process comprising: a desolvation step of the brazing composition, so as to obtain a desolvated brazing composition, then a compacting step of the desolvated brazing composition so as to obtain a preform of metallic particles, said preform being able to be used for the sintering of an electronic, photonic, thermal or mechanical component onto a substrate, the brazing composition being represented either by a brazing paste, or by a suspension of metallic or metallic oxalate grains in suspension in a solvent.

Abstract: A correction and focusing device for a beam, through the deformation of a mirror, wherein it incorporates a frame supporting the mirror, at least one curve generator applying at least one torque to at least one extremity of the mirror, and correction actuators spaced along the mirror so as to apply stresses to the different zones of the mirror.

Abstract: A correction and focusing device for a beam, through the deformation of a mirror, wherein it incorporates a frame supporting the mirror, at least one curve generator applying at least one torque to at least one extremity of the mirror, and correction actuators spaced along the mirror so as to apply stresses to the different zones of the mirror.