Glass selection tends to be both a science and an art. It is the intent of this paper to remove the Ic*Q( X
"mystique" surrounding glass selection, primarily based on the chromatic properties of the glass, 7%tn+
and to show via careful parametric analyses how we can optimally select glasses for lenses of K(?7E6\vO
different f/numbers, spectral bands, and performance requirements. The important roles of NNT9\JRv_
refractive index and Abbe number as well as partial dispersion will be considered. Using the z{ 8!3>:E
SCHOTT glass map, six separate and identifiable regions along with glasses within each region Ni`qU(I'|
will be discussed. The goal for this paper is to make glass selection easier to understand.
