Glass selection tends to be both a science and an art. It is the intent of this paper to remove the }1_gemlf
"mystique" surrounding glass selection, primarily based on the chromatic properties of the glass, Q;aZpi-E"
and to show via careful parametric analyses how we can optimally select glasses for lenses of PKjA@+
different f/numbers, spectral bands, and performance requirements. The important roles of R8],}6,;E}
refractive index and Abbe number as well as partial dispersion will be considered. Using the /@wm?ft6Gk
SCHOTT glass map, six separate and identifiable regions along with glasses within each region ahV_4;yF
will be discussed. The goal for this paper is to make glass selection easier to understand.