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US H1,354 HGranted
Optical data transducer
AssigneeThe United States of America as represented by the Secretary of the Air Force
InventorOtto R. Martinez
Life of this patent
Estimating the term…
Abstract
An optical data transducer system is described which comprises a cryogenic dewar for containing an infrared focal plane array at low temperature and an optical spatial light modulator, collimated laser beam and associated optical train and detector for efficient extraction of information from the array.
Claims8
A cryogenic data transducer system, comprising:
- (a) a cryogenic dewar having optical window means therein for admitting an optical signal and a probe beam;
- (b) an infrared focal plane array disposed within said dewar near said optical window means for receiving an optical signal from external of said dewar;
- (c) a spatial light modulator disposed within said dewar near said optical window means, said spatial light modulator being operatively connected to said infrared focal plane array;
- (d) a source of a collimated laser beam source and optical means for directing a probe beam from said source onto said spatial light modulator through said optical window means and directing a reflected beam external of said dewar from said spatial light modulator;
- and
- (e) detection means for detecting and analyzing said reflected beam.
3 more elements
In a cryogenic data transducer system including a cryogenic dewar and an infrared sensor array disposed within the dewar for receiving an optical signal external of the dewar, an improvement comprising:
- (a) optical window means on said dewar for admitting a probe beam;
- (b) a spatial light modulator disposed within said dewar near said optical window means, said spatial light modulator being operatively connected to and responsive to said infrared sensor array;
- (c) a source of a collimated laser beam source and optical means for directing a probe beam from said source onto said spatial light modulator through said optical window means and directing a reflected beam external of said dewar from said spatial light modulator;
- and
- (d) detection means for detecting and analyzing said reflected beam.
2 more elements
Dependencies are inferred from the claim text.