Hi,
I try to simulate a system that is inside a medium(n=1.5) and would like to use ideal mirror lenses. I tried to use a paraxial lens and to set the material to mirror, but had to adjust the focal length to a value 1.5 smaller compared to the right. The focal length of an ideal lens is not supposed to change because of the material. What would be the right way to define the surface?
Thanks,
Leonid