Universal focal plane dewar assembly

Details Universal focal plane dewar assembly Universal focal plane dewar assembly

1998-06-05

1999-10-19

Doerrler, William

Refrigeration

Storage of solidified or liquified gas

Including cryostat

622592, 250352, F25B 1900, G01J 506

Patent

active

059669454

ABSTRACT:
A universal focal plane DEWAR assembly for cryogenic cooling of an infrared detector DEWAR, which includes an infrared transmissive window attached to a hollow support cylinder under vacuum conditions, with a glass bore in the cylinder, which contains focal plane infrared structure inside of a cold shield, which is attached to a cold plate, with a cold button in contact therewith, and with a cold finger from a cryogenically cooled expander, which is spring mounted in the glass bore for removal and replacement without disturbing the focal plane structure.

REFERENCES:
patent: 5317157 (1994-05-01), Yoshida et al.
patent: 5404016 (1995-04-01), Boyd et al.
patent: 5834778 (1998-11-01), Veyrier et al.

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