SCOTS: A Quantitative Slope Measuring Method for Optical Shop Use

Peng Su, Robert E. Parks, Lirong Wang, Roger P. Angel, James H. Burge
2010 International Optical Design Conference and Optical Fabrication and Testing   unpublished
Software Configurable Optical Test System (SCOTS)[1], a computerized "reverse Hartmann test", can rapidly quantitatively measure highly aspherical shapes such as solar collectors, Giant Magellan Telescope (GMT) primary segment with accuracy to micron rms or better without complex calibration. Implementation of SCOTS needs only hardware like a laptop computer. It illuminates test surface/system with patterns from a LCD screen and use reflected/refracted image to determine surface/system wavefront slope variations.
doi:10.1364/oft.2010.otub3 fatcat:tmh44ibdszhubgttsh4or6mlsa