--- /dev/null
+Schott Sk12, 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 1.16982669E+00;\r
+B2 2.97450370E-01;\r
+B3 9.65847815E-01;\r
+C1 6.52887127E-03;\r
+C2 2.14033820E-02;\r
+C3 1.05089898E+02;
\ No newline at end of file