Radiant energy – Radiant energy generation and sources
Patent
1985-04-25
1987-06-09
Anderson, Bruce C.
Radiant energy
Radiant energy generation and sources
250504R, G21G 400
Patent
active
046722114
ABSTRACT:
A blackbody simulator which includes a core having a non-spherical cavity and an aperture to the cavity. A substantial portion of the cavity surface is shaped so that the value of the projected solid angle of the aperture with respect to any point of the cavity surface portion is approximately constant. Simplifications to the cavity surface are achieved by increasing the apex angle. Reductions in the size and weight to the cavity may also be achieved by reducing the ratio of the cavity depth to the aperture diameter.
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Gerald Falbel, et al. Contemporary Infrared Standards and Calibration, "Radiometric Calibration for the Earth Radiation Budget Experiment Instruments", vol. 308, Aug. 25-26, 1981, (SPIE) pp. 122-134.
Stephen L. Carman, "Deep Concentric Grooves Enhance Blackbody Spectral and Spatial Uniformity", Applications of Optical Metrology-Techniques and Measurements II, pp. 178-186, vol. 416, Apr. 7-8, 1983.
A. R. Karoli, et al. Applied Optics, "An Absolute Calibration Source for Laboratory and Satellite Infrared Spectrometers", vol. 6, No. 7, 7/67, pp. 1183-1188.
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