DN Meaning in Optical Design – Dispersion Variable Explained
Question What is the definition of DN? I notice that if I load N-BK7 from the Schott catalog, convert it into a model glass, and mark the dispersion (DN) of the glass as a variable, the initial DN is calculated as DN = 0.246045 while the VNBR = 64.16641. How do you calculate one from the other? ...
