Glass selection tends to be both a science and an art. It is the intent of this paper to remove the DlyMJ#a
"mystique" surrounding glass selection, primarily based on the chromatic properties of the glass, &hV Zx
and to show via careful parametric analyses how we can optimally select glasses for lenses of C+K =[
different f/numbers, spectral bands, and performance requirements. The important roles of 7Bz*r0 9S
refractive index and Abbe number as well as partial dispersion will be considered. Using the x.$1<w64t
SCHOTT glass map, six separate and identifiable regions along with glasses within each region JmOW~W
will be discussed. The goal for this paper is to make glass selection easier to understand.
