--- /dev/null
+Schott KzFS N4, 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 1.37994218E+00;\r
+B2 1.68496708E-01;\r
+B3 8.74885726E-01;\r
+C1 8.91159699E-03;\r
+C2 4.05334070E-02;\r
+C3 6.96628237E+01;
\ No newline at end of file