Glass selection tends to be both a science and an art. It is the intent of this paper to remove the ^0-e.@
"mystique" surrounding glass selection, primarily based on the chromatic properties of the glass, O=6[/oc
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and to show via careful parametric analyses how we can optimally select glasses for lenses of W}#n.c4+
different f/numbers, spectral bands, and performance requirements. The important roles of :6]qr 86
refractive index and Abbe number as well as partial dispersion will be considered. Using the ]E6r)C
SCHOTT glass map, six separate and identifiable regions along with glasses within each region 0{
will be discussed. The goal for this paper is to make glass selection easier to understand.