Caution
Fill in all input cells.
Choose all parameters unit.
ns and nl can be either numeric values or references of glasses from the catalog. If references of glasses are selected, the calculation considers the refraction indexes of these glasses at the generic wavelengths lam_min and lam_max defined in the page accessible by the general parameters/wavelength link.
If ns and nl are numeric values, they are strictly larger than "1" and ns>=nl.
e is strictly positive. Distances and heights are algebraic.
Radii are algebraic or infinite. Enter "infinite" for a plane surface.
Positive directions are according to the sense of the arrows provided for this purpose.