Design and construction of a focal plane slicing mirror

摘要

We describe here the optical design, mechanical project and the manufacturing of a mechanically reconfigurablespherical slicing mirror. We made use of nowadays commonly available mechanical cutting techniques (wire spark-erosion) to obtain single blades (slices) shaped with profile close to the optical sag specification. Blades so constructedare ready to be optically finished with standard optical workshop techniques. We present here the results obtained frommetrology made on the first constructive phase of the system before to start the final optical polishing phase.