Schott KzFS 6, 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	1.35163564E+00;
B2	1.35759794E-01;
B3	8.44490002E-01;
C1	8.49653173E-03;
C2	3.88357230E-02;
C3	6.72773371E+01;