| http://www.w3.org/ns/prov#value | - The placement, geometry and dimensions of the cylindrical portion 38 and of the rounded portion 40 are chosen, with consideration to the size, focal length, magnification, and other parameters associated with the annular reflector surface 44 of imaging optic 32, so that flux exceeding the angular limits prescribed by applicable standard (in the case of the ANSI 45???:0??? standard, less than 40???
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