Glass selection tends to be both a science and an art. It is the intent of this paper to remove the P5N"7/PfW
"mystique" surrounding glass selection, primarily based on the chromatic properties of the glass, Ct B>
s7
and to show via careful parametric analyses how we can optimally select glasses for lenses of txi
m|)
different f/numbers, spectral bands, and performance requirements. The important roles of 8w{V[@QLn
refractive index and Abbe number as well as partial dispersion will be considered. Using the k=LY 6
SCHOTT glass map, six separate and identifiable regions along with glasses within each region '!_o`t@
will be discussed. The goal for this paper is to make glass selection easier to understand.