--- /dev/null
+Schott F 9, 334nm - 2325nm\r
+USER\r
+2 1\r
+SQRT(1+B1*wvl^2/(wvl^2-C1)+B2*wvl^2/(wvl^2-C2)+B3*wvl^2/(wvl^2-C3))\r
+0\r
+B1 1.37298383E+00;\r
+B2 1.86344373E-01;\r
+B3 9.96847110E-01;\r
+C1 9.70906764E-03;\r
+C2 4.77952149E-02;\r
+C3 1.09902441E+02;
\ No newline at end of file