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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.
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Aspden et al. (1972) studied this question.
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