| http://www.w3.org/ns/prov#value | - In addition to conventional optical elements such as, for example collecting lenses with positively curved, i.e. convex boundary surfaces, which detect the total cross section of the admitted bundle of rays, said homogenizer also has so-called lens arrays, which are composed of lenses which each only sense a part of the cross section of the beam, i.e., partial radial bundles.
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