Hi Zemax

Thanks for your help every time.

I designed it as follows.

1. My lens is designed as a rectangular parallelepiped.

2. The point source exists in the lens and the cone angle of the source is 180.

3. There is a reflector at the end of the lens and a detector at the other end.

4. I want to set the reflector's Radius and Conic as variables.

My purpose is to get the most number of hits detected by the detector.

What should I do to proceed with the optimization?

Best regards,

Suhwan Kim