The Johns Hopkins University has recently started a a program to develop adaptive optics instrumentation for astronomy. We have taken an evolutionary approach where the simplest element, wavefront tilt correction, is being developed first, along with a stellar coronagraph designed to fully utilize the higher resolution images, and the more complex elements, to correct for higher order wavefront distortions, will be phased in as they are developed. A wavefront tilt correcting coronograph is now complete and is being commissioned at the Swope 40 inch telescope of the Las Campanas Observatory in Chile. In this paper we describe this system and the initial results of its laboratory evaluation.
Samuel T. Durrance,
"The Johns Hopkins University Adaptive Optics Program", Proc. SPIE 1114, Active Telescope Systems, (20 September 1989); doi: 10.1117/12.960815; https://doi.org/10.1117/12.960815