Detectors, and envelope arrangements and mounts for detectors

Details Detectors, and envelope arrangements and mounts for detectors Detectors, and envelope arrangements and mounts for detectors

1979-06-11

1981-04-14

Willis, Davis L.

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

62264, 62DIG9, 250338, G01J 100

Patent

active

042622000

ABSTRACT:
An infrared detector and envelope arrangement for the detector have a novel mount (21,22,23,24) for a Joule-Thomson or other cooling element (10). The mount is a single unit (21,22,23,24) which includes an inner part (23) on which the cooling element (10) is mounted e.g. via an adaptor (30). The cooling element (10) is secured in a dewar (1,2) of the envelope arrangement by attaching an outer part (21,22) of the mount (21,22,23,24) to a dewar mount (13) e.g. by bolts (22). These inner and outer parts (23 and 21,22) which may have overlapping flanges (43,37 and 21, see FIGS. 2 to 6) are elastically coupled together by a resilient part (24) of the mount (21,22,23,24). The resilient coupling reduces movement and strain of the inner dewar wall (1) caused by movement of the cooling element both during assembly and use of the detector. A fluid inlet (51,52) may be present on the outer part ( 22,21), and a flexible pipe (11) may extend between the outer and inner parts (21,22 and 23) to connect the inlet (51,52) to the cooling element (10). (FIG. 1).

REFERENCES:
patent: 2951944 (1960-09-01), Fong
patent: 3188824 (1965-06-01), Geist et al.
patent: 3602714 (1971-08-01), Farmer et al.
patent: 3630047 (1971-12-01), Turton
patent: 3742729 (1973-07-01), Zulliger
patent: 3851173 (1974-11-01), Taylor et al.
patent: 3894403 (1975-07-01), Longsworth
patent: 3942010 (1976-03-01), Peterson et al.

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