Schott F 7, 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:	1.35918954E+00;
B2:	2.09887471E-01;
B3:	8.81405771E-01;
C1:	1.01796354E-02;
C2:	4.83605548E-02;
C3:	1.10387289E+02;