(US4974062-A)      The infra-red detector housing has a Joule-Thomson cooler with a heat exchanger pipe with a heat exchanger pipe which is disposed in a planar concentric spiral shape. A lower housing section is provided with a centre housing section connected to it. An upper housing section is connected to the centre housing section and is adapted to permit passage of radiation through at least a portion of the passage.$ The centre housing section and upper housing section together enclose an element space for an infra-red detectors. The lower section and centre section together enclose the heat exchanger pipe of the Joule-Thomson cooler and are composed of a material having a low heat conductivity.$    USE -   For housing opto-electronic components.    (7pp)    (DE3823006-C2)      The housing has an upper part (18), a middle part (14) and a lower part (10). The middle part is formed as carrier body and has radial ribs on its lower side,which hold and guide the single winding of the spiral shaped heat exchange pipe(11).    On the upper side of the middle part is provided a central hole (16) in which the cooled element carrier (17) is arranged for IR-sensitive constructional element (23). Holes (25) are provided in the middle part through which conducting paths (24) are fed.    USE -   For IR-sensitive elements.    (EP349933-B1)      Housing for infrared-sensitive components, with a top housing part (18), which is provided to admit radiation, a central housing part (14) and a bottom housing part (10), wherein a) a heat exchanger tube (11), which is formed in a spiral shape in one plane, of a Joule-Thomson collar is enclosed between the central housing part (14) and the bottom housing part (10), b) the central housing part (14) and the bottom housing part (10) consist of a material of a low thermal conductivity, characterised in that: the central housing part (14) is formed as a carrier body such that c) radial webs (15) are provided at the underside of the central housing part (14), which webs comprise recess which extend in the circumferential direction and in which individual turns of the spiral heat exchanger tube (11) are guided and held, d) a central recess (16) is provided in the top side of the central housing part (14), in which recess the cooled component carrier (17) for the infrared-sensitive component (23) is arranged, e) bores (25) are provided in the central housing part (14), through which bores the conductor leads (24) for the infrared-sensitive component (23) are passed radially outwards, the conductor leads (24) being glued or soldered in the bores (25).