| 西铂莱恩 |
2011-09-16 14:20 |
glass selection
Glass selection tends to be both a science and an art. It is the intent of this paper to remove the R;,&s!\<
"mystique" surrounding glass selection, primarily based on the chromatic properties of the glass, _DPWp,k<~
and to show via careful parametric analyses how we can optimally select glasses for lenses of q{v:T}Q|A
different f/numbers, spectral bands, and performance requirements. The important roles of n% ; wQ^
refractive index and Abbe number as well as partial dispersion will be considered. Using the YXE?b @W"
SCHOTT glass map, six separate and identifiable regions along with glasses within each region 1iWo* +5
will be discussed. The goal for this paper is to make glass selection easier to understand.
|
|