21 October 1996 Camera equation for an optical system with an on-axis obscuration
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Abstract
The on-axis image plane incidence of an extended object (sometime also called irradiance), radiating as a Lambertian radiator, is derived for an optical system with a central obscuration. It is then extended to off-axis image points to obtain a generalized form of image incidence for an extended source. For an object at infinity, under the assumptions of paraxial image formation, the newly derived expression reduces to that used traditionally in the radiometric system design.
© (1996) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Gonzalo Paez-Padilla, Gonzalo Paez-Padilla, Marija S. Scholl, Marija S. Scholl, } "Camera equation for an optical system with an on-axis obscuration", Proc. SPIE 2817, Infrared Spaceborne Remote Sensing IV, (21 October 1996); doi: 10.1117/12.255192; https://doi.org/10.1117/12.255192
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