Idea: Separate actual light source from OpticScenery
In the OpticScenery, define only "light input ports". Depending on the type of analysis one could change the source definition accordingly. Currently, an OpticScenery can only be analysed according to the right light source definition (Energy / Rays / Fourier). A separation would also allow for an "imaging module", where the light source is a "illuminated mask" where a ray cone is emitted from each point (ZEMAX geometric image analysis).