~Concept for f/10 - f/4.7 Focal Reducer for Large Telescope~ |
This was a focal reducer concept for a 3.5m telescope but the project didn't materialize.
![]() Rendering of optical design. Scale: .8m end to end. Light enters from RIGHT.
![]() Annotated raytrace. Light enters from RIGHT. ![]() Spot diagrams. RMS diameters around 25 microns here. Design was still conceptual when I stopped working on it; this would have been improved. |