3.9 Android S
3.8 Android R
3.7 Android Q
3.6 Android Oreo
A maximum of 10 lenses/mirrors per project..
In each lens is specified: position, thickness, radius of each surface, and refraction indices for red-green-purple
Drag the optical axis of a lens to change its position
You can edit, add/and remove lenses, and save / open your project.
There are 7 samples including a simple reflector and a Maksutov.