Zeeko precession for free-form polishing

F. Procháska; I. Poláková; J. Polák; O. Matoušek; D. Tomka

doi:10.1117/12.2256558

11 November 2016 Zeeko precession for free-form polishing

F. Procháska, I. Poláková, J. Polák, O. Matoušek, D. Tomka

Proceedings Volume 10151, Optics and Measurement International Conference 2016; 101510O (2016) https://doi.org/10.1117/12.2256558
Event: Optics and Measurement 2016 International Conference, 2016, Liberec, Czech Republic

Abstract

The aim of this work is an exploration of the options for optical surface polishing using the Zeeko IRP 100 machine and raster kinematics suitable for free-form polishing. For this purpose, aspheric surfaces were polished in raster prepolishing mode and then in Precession raster 3D shape correction, which is based on the Dwell time tool movement control. It was found that shape accuracy can achieve the value of approximately 35 nm RMS. The main inaccuracy was caused by the mid-spatial frequencies generated by the kinematics of the applied tools, which also limited the achievable values of microroughness.

Citation Download Citation

F. Procháska, I. Poláková, J. Polák, O. Matoušek, and D. Tomka "Zeeko precession for free-form polishing", Proc. SPIE 10151, Optics and Measurement International Conference 2016, 101510O (11 November 2016); https://doi.org/10.1117/12.2256558

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