Method and apparatus for cold shielding

Details Method and apparatus for cold shielding Method and apparatus for cold shielding

1998-02-09

1999-11-30

Hannaher, Constantine

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

G01J 506

Patent

active

059947020

ABSTRACT:
A method of making and a bellows cold shield wherein only the focused IR energy from the optical system of an IR detector will reach the detector or focal plane array, FPA, and all other radiation will be redirected from reaching the FPA through the use of a bellows cold shield having a predetermined geometrical surface which reflects the undesired light energy away from the FPA, and a microrough interior surface of this geometrical shape which absorbs any of the undesired light energy which is not so reflected away.

REFERENCES:
patent: 5196106 (1993-03-01), Du Pree et al.
patent: 5225931 (1993-07-01), Stavroudis
patent: 5277782 (1994-01-01), Du Pree et al.
patent: 5315116 (1994-05-01), Du Pree et al.
patent: 5371369 (1994-12-01), Kent

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