Glass selection tends to be both a science and an art. It is the intent of this paper to remove the \qB.>f"%p|
"mystique" surrounding glass selection, primarily based on the chromatic properties of the glass, Vu Ey`c
and to show via careful parametric analyses how we can optimally select glasses for lenses of lO 8GnkLE
different f/numbers, spectral bands, and performance requirements. The important roles of Gn 1
refractive index and Abbe number as well as partial dispersion will be considered. Using the c) _u^Dh
SCHOTT glass map, six separate and identifiable regions along with glasses within each region a*!9RQ
will be discussed. The goal for this paper is to make glass selection easier to understand.
