diff --git a/01.curriculum/01.physics-chemistry-biology/03.Niv3/02.Geometrical-optics/05.paraxial-optics/02.paraxial-optics-simple-elements/03.lens/02.lens-overview/2-centered-refracting-surfaces-direction-axis.gif b/01.curriculum/01.physics-chemistry-biology/03.Niv3/02.Geometrical-optics/05.paraxial-optics/02.paraxial-optics-simple-elements/03.lens/02.lens-overview/2-centered-refracting-surfaces-direction-axis.gif
new file mode 100644
index 000000000..ed47e11cc
Binary files /dev/null and b/01.curriculum/01.physics-chemistry-biology/03.Niv3/02.Geometrical-optics/05.paraxial-optics/02.paraxial-optics-simple-elements/03.lens/02.lens-overview/2-centered-refracting-surfaces-direction-axis.gif differ