Here are some pics. The pic with the glass sphere is fine to me, because it
shows the refracted light (however without the spectrum). But the other one
has a reflective parabolic surface that doesn't work like I expected.
Sources are at p.b.s-f

Post a reply to this message

Attachments:
Download 'ookoos02.png' (83 KB) Download 'ookoos01.png' (24 KB)

Preview of image 'ookoos02.png'

Preview of image 'ookoos01.png'