Add Element Lenses Lens Ideal Lens Microlens Array Mirrors Flat Mirror Spherical Mirror Parabolic Mirror Stop Sensor Block Advanced Objects Beam Splitter Color Filter Diffusor Grating ABCD-System Support Tools Ruler Arrow Label Info box Add Light Source Single Ray Parallel Beam Divergent Beam Wavefront/Ray Virtual Rays on/off Load/Save Files Examples Example 1 Example 2 Example 3 Example 4 Example