From Event: SPIE Optical Engineering + Applications, 2016
Due to the technological progress in manufacturing, freeform surfaces become a serious option within the optical design proces. The work presented here was done within the German Growth Core fo+ and involves all the steps from optical design to manufacturing and testing. The aim of this freeform demonstrator was to improve the field of view correction for an existing spectrometer telescope optics. Within the optical design process different solutions for this freeform element were evaluated. Based on this analysis, the freeform optics was manufactured by grinding and polishing. The results derived from this performance analysis will be presented.
S. Wickenhagen, P. Petruck, and U. Fuchs, "Improving spectrometer field of view correction with a freeform surface," Proc. SPIE 9948, Novel Optical Systems Design and Optimization XIX, 99480K (Presented at SPIE Optical Engineering + Applications: August 30, 2016; Published: 28 September 2016); https://doi.org/10.1117/12.2236141.
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