Schott K7, 313nm - 2325nm
USER
2 1
SQRT(1+B1*wvl^2/(wvl^2-C1)+B2*wvl^2/(wvl^2-C2)+B3*wvl^2/(wvl^2-C3))
0
B1 1.127355e+000
C1 7.203417e-003
B2 1.244123e-001
C2 2.698359e-002
B3 8.271005e-001
C3 1.003846e+002