--- /dev/null
+Schott BaLF 4, 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 1.29375981E+00;\r
+B2 1.58138572E-01;\r
+B3 9.47442773E-01;\r
+C1 7.80228251E-03;\r
+C2 3.21349048E-02;\r
+C3 1.09158657E+02;
\ No newline at end of file