Radiometer with correction device

Details Radiometer with correction device Radiometer with correction device

1992-03-30

1993-12-14

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controls its own optical systems

2502081, G01J 120

Patent

active

052705285

ABSTRACT:
A radiometer mounted on an aircraft, satellite or similar flying body for observing reflections or radiations of visible rays or infrared rays from the land or the sea. The radiometer has optical means for receiving and converging the visible rays or infrared rays, light-sensitive elements to which the converged rays are incident, means for changing the optical distance between the light-sensitive elements and the optical means, and means for generating correction data while the focal distance of the optical means is deviated from the light-sensitive surface of the light-sensitive elements.

REFERENCES:
patent: 4919505 (1990-04-01), Bartosiak et al.
patent: 5146072 (1992-09-01), Dey et al.
J. M. Maisonneuve et al., "Spot In-Flight Calibration", 14th Congress of the International Society for Photogrammetry, pp. 600-607.
J. P. Midan, "IAF-83-109 The Spot-HRV Instrument: An Overview of Design and Performance", 34th Congress of the International Astronautical Federation, Oct. 10-15, 1983.

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