--- /dev/null
+Schott SF 6, 365nm - 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 1.72448482E+00;\r
+B2 3.90104889E-01;\r
+B3 1.04572858E+00;\r
+C1 1.34871947E-02;\r
+C2 5.69318095E-02;\r
+C3 1.18557185E+02;
\ No newline at end of file