Abstract: An attachment system and method for optical parts for applying treatments and deposits on at least one surface of said parts without sparse zones on said surface. The system includes an optical part holder in the form of a flange provided with two branches connected at respective first branch ends thereof by a spring link and provided at respective second branch ends thereof with facing tabs and means for bringing said tabs together suited for tightening the branches on an edge of said parts. The method includes a step of positioning an optical part holder in the form of a flange on the edge of said optical part, where a front surface of said flange is positioned recessed from the surface to be treated or flush with the surface to be treated and a step of tightening the flange on the edge of said optical part.

Abstract: A part for a Joule-Thomson cooler, comprising a gas discharge pipe and a seal closing the gas discharge pipe, the seal being capable of breaking, at least partially, under the effect of gas expansion triggered by the cooler so as to allow the gas to be discharged out of the cooler through the gas discharge pipe. The part is obtained by an additive manufacturing method that comprises stacking layers of powder along a stacking axis in order to form the part, the stacking axis being parallel to a central axis of a second gas discharge pipe separate from the first discharge pipe.

Abstract: A part for a Joule-Thomson cooler, comprising a gas discharge pipe and a seal closing the gas discharge pipe, the seal being capable of breaking, at least partially, under the effect of gas expansion triggered by the cooler so as to allow the gas to be discharged out of the cooler through the gas discharge pipe. The part is obtained by an additive manufacturing method that comprises stacking layers of powder along a stacking axis in order to form the part, the stacking axis being parallel to a central axis of a second gas discharge pipe separate from the first discharge pipe.

Abstract: The invention relates to an infrared detection module (4) comprising: a detection portion (7) comprising an infrared detector (16) and a detector housing (11) suitable for containing the infrared detector; a cold-production portion (8) comprising a refrigerating machine (39) for cooling the detector (16) and a refrigerating-machine casing (12) suitable for containing the refrigerating machine (39); and an attachment device (56) for attaching the detector casing (11) to the refrigerating-machine casing (12), the attachment device (56) comprising a nut (57) suitable for being screwed onto the detector housing (11) and/or onto the refrigerating-machine casing (12) so as to rigidly connect the casings to one another.

Abstract: The invention relates to an infrared detection module (4) comprising: a detection portion (7) comprising an infrared detector (16) and a detector housing (11) suitable for containing the infrared detector; a cold-production portion (8) comprising a refrigerating machine (39) for cooling the detector (16) and a refrigerating-machine casing (12) suitable for containing the refrigerating machine (39); and an attachment device (56) for attaching the detector casing (11) to the refrigerating-machine casing (12), the attachment device (56) comprising a nut (57) suitable for being screwed onto the detector housing (11) and/or onto the refrigerating-machine casing (12) so as to rigidly connect the casings to one another.