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High Precision Lens Assembly with Alignment Turning Machines
In recent years, alignment turning technology has experienced some key developments. Progress has been made with regard to aspheres, cylindrical surfaces or "best fit" centration of lens groups. It has also been possible to significantly increase the accuracy that can be achieved, in particular because the machines and control technology used have been optimized. Further accuracy gains for high precision optical assemblies are achieved when the processing and measurement sequences are optimized specifically for the sub-micron range. Iterative processing with integrated measurement of the reference surfaces is key to this.
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