Computer Assisted Optical Surfacing (CAOS) is a modern system for optical fabrication. A computer is used to calculate the effects of moving a lap on an optical surface. A mathematical deconvolution technique is used to specify lap motions to correct a surface error. Application of the CAOS system operation of an XY machine in the fabrication of off-axis segments of general aspherics is described.
Ronald Aspden, Ralph McDonough, and Francis R. Nitchie, Jr., "Computer Assisted Optical Surfacing," Appl. Opt. 11, 2739-2747 (1972)