Radiant energy – Infrared-to-visible imaging – Including detector array
Patent
1987-04-17
1991-06-11
LaRoche, Eugene R.
Radiant energy
Infrared-to-visible imaging
Including detector array
2504951, 250352, H01L 2500
Patent
active
050234595
ABSTRACT:
A miniature multi-temperature radiometric reference is placed in an intermediate image plane (20) of a thermal imaging optical system in order to correct, in a real-time manner, non-uniformities among detectors (30). The radiometric reference comprises at least two reference elements (10) mounted on a thermolelectric cooler (TEC) (1) which may have several stages (6). The reference elements (10) are mounted on the same platform (3) of the TEC (1). Each element (10) has a surface (11), having a substantially uniform temperature, within the depth of focus at the intermediate image plane (20). All of the radiometric reference surfaces (11) are maintained at different temperatures, which can be simultaneously above and below the ambient temperature. This enables determination of a normalized detector response, and subsequent correction of the response of each detector (30) as a function of temperature throughout the range characterized by the temperatures of the reference surfaces (11).
REFERENCES:
patent: 2952762 (1960-09-01), Williams et al.
patent: 3077539 (1963-02-01), Blau, Jr. et al.
patent: 3188473 (1965-06-01), Bates et al.
patent: 3309881 (1967-03-01), Beerman
patent: 3383902 (1968-05-01), Cragin et al.
patent: 3604933 (1971-09-01), Cross et al.
patent: 3694624 (1972-09-01), Buchta
patent: 3895182 (1975-07-01), Trilling
patent: 4063095 (1977-12-01), Wieder
patent: 4166390 (1979-09-01), Benzinger
patent: 4280050 (1981-07-01), Callender et al.
patent: 4337396 (1982-06-01), Lauer et al.
patent: 4378489 (1983-03-01), Chabinsky et al.
patent: 4387301 (1983-06-01), Wirick et al.
patent: 4419692 (1983-12-01), Modisette et al.
patent: 4433924 (1984-02-01), Quinn, III
patent: 4598206 (1986-07-01), Nelson
patent: 4620104 (1986-10-01), Nordal et al.
Bagley, Jr. Harold R.
Osborn D. Bruce
Ford Aerospace & Communications Corporation
Ham Seung
LaRoche Eugene R.
Radlo Edward J.
Zerschling Keith L.
LandOfFree
Miniature multi-temperature radiometric reference does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Miniature multi-temperature radiometric reference, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Miniature multi-temperature radiometric reference will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-784252