Schott LF 5, 334nm - 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	1.28035628E+00;
B2	1.63505973E-01;
B3	8.93930112E-01;
C1	9.29854416E-03;
C2	4.49135769E-02;
C3	1.10493685E+02;