Schott KzF N1, 365nm - 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	1.19949942E+00;
B2	1.63891773E-01;
B3	8.90412049E-01;
C1	7.67704289E-03;
C2	3.52898056E-02;
C3	9.43366502E+01;