diff --git a/esbo_etc/classes/optical_component/__init__.py b/esbo_etc/classes/optical_component/__init__.py
index 9e5c29f..dc8d3e4 100644
--- a/esbo_etc/classes/optical_component/__init__.py
+++ b/esbo_etc/classes/optical_component/__init__.py
@@ -3,3 +3,4 @@ from esbo_etc.classes.optical_component.Atmosphere import *
 from esbo_etc.classes.optical_component.StrayLight import *
 from esbo_etc.classes.optical_component.AHotOpticalComponent import *
 from esbo_etc.classes.optical_component.Filter import *
+from esbo_etc.classes.optical_component.Lens import *