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An Entity of Type : prov:Entity, within Data Space : webisa.webdatacommons.org associated with source dataset(s)

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  • Dh ( ?? ) = k ??? DO 2 + R 2 - 2 DO ??? R cos ?? where Dh is the size of a projected point or the distance between two adjacent projected points as a function of the field angle ?? along a meridian of the projection surface, k is a constant, R is the radius of curvature of the projection surface, and DO is the distance between the center of an external projection lens of the optical device and the
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