Parameters
lam : wavelength intrinsically used to calculate any refraction index defined by a reference of a glass catalog when the wavelength is not an input of the page
lam_min : wavelength used in the "chromatic aberration" calculation pages to compute the refraction index at the smallest wavelength when the refraction index is specified by a reference of a glass catalog
lam_max : wavelength used in the "chromatic aberration" calculation pages to compute the refraction index at the largest wavelength when the refraction index is specified by a reference of a glass catalog