The goal of an imaging sensor with nearly constant response, constant image quality, with a focal plane array of pixels
whose overlap can be scaled, that can still provide a nearly hemispherical field-of-view has been demonstrated. The
topic of this paper is the optical design of just such a sensor. A flow down of these performance constraints to hardware
specifications is bounded by information theory, diffraction theory, plus practical matters that constrain the overlap of
focal plane arrays.
A set of performance goals for a sensor are the ability to observe features ≤25 μr features in size within a 45° scene
using >1 G pixels.
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