Lense 250 with Mounting
This is a spherical symmetrical lense with 160mm width and 250mm focuslength. It was manufactured from plexiglas and polished afterwards. The lense comes with a mounting which should fit perfectly.
This one has no abberation and manages to focus the light to a sharp point. (In contrast to "Lense 160 with Mounting"). The physical dimensions have been designed using zemax,