Index: LED.scad
===================================================================
--- LED.scad	(revision 37455)
+++ LED.scad	(revision 37456)
@@ -1,3 +1,35 @@
+// Model for round 3mm and 5mm LED through hole package
+//
+// Copyright (C) 2023 Erich Heinzle
+//
+// File distribution license:
+//  This library is free software; you can redistribute it and/or
+//  modify it under the terms of the GNU Lesser General Public
+//  License as published by the Free Software Foundation; either
+//  version 2.1 of the License, or (at your option) any later version.
+//
+//  This library is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//  Lesser General Public License for more details.
+//
+//  You should have received a copy of the GNU Lesser General Public
+//  License along with this library; if not, write to the Free Software
+//  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+//
+// The above distribution license applies when the file is distributed as a
+// stand alone model file or as part of a library, in both cases intended
+// for reuse combined by the user with other openscad scripts.
+//
+// Use license:
+//  as a special exception, the content of the file may be
+//  embedded in an openscad script that represents a printed circuit board,
+//  for example when a board is exported by pcb-rnd. In such use case,
+//  the content of this file may be copied into the resulting board file
+//  with or without modifications, without affecting the board file's license
+//  in any way.
+//
+
 module led(diameter)
 {
     height = 1.65*diameter + 0.35;
@@ -20,3 +52,4 @@
         }
     }
 }
+