Method for uncertainty evaluation of the spatial mating of high-precision optical and mechanical parts

This paper presents a method for estimating the uncertainty of spatial mating of high-precision parts using optical measurements. The method is applicable in computer designing for optical and mechanical systems, taking into account the manufacturing uncertainties and relative position their elements. Another of its application can be to find the most acceptable method of assembly and adjustment of precision optical systems based on the results of measurements of the geometry of mating parts. The method involves the analysis of parts geometry deviation on the results of the optical measurements; creating of geometric models for real surfaces of the parts, the calculation of relative spatial arrangement of parts in modeling their mates using the modernized of the iterative closest points algorithm (ICP).