Initialize Lens 1 | This model uses two matrix transformations (one for each surface) and doesn't account for spherical aberration.
Initialize Lens 2 | This model uses a Snell's law calculation at each surface. Aberration is observed.
<script language="JavaScript"> function thick_lens() { document.OpticsBenchApplet.setDefault(); document.OpticsBenchApplet.setSize(0.9); document.OpticsBenchApplet.addDielectric(1.5,1.4,2.0); document.OpticsBenchApplet.addDielectric(2.0,-1.4,-2.0); document.OpticsBenchApplet.addSource(0.5,0,.25,-1); } </script>