Sometimes it is useful to visualize an optical design and calculate the optical quality. A free program for doing that is BEAM4 from http://www.stellarsoftware.com/ I had used an earlier test version, but now it is available as a free version and more user friendly, so I gave it a try. I chose the Czerny spectrograph … Continue reading Test of optical ray tracing software
Author: meteorspectroscopy
Amateur Astronomer specialised in Meteors and Spectroscopy, FMA (Fachgruppe Meteorastronomie); AGG (Astronomische Gesellschaft Graubünden)