Special Section on Freeform Optics

Strategy for a flexible and noncontact measuring process for freeforms

[+] Author Affiliations
Andreas Beutler

Mahr GmbH, R&D, Carl-Mahr-Street 1, Göttingen 37079, Germany

Opt. Eng. 55(7), 071206 (Apr 12, 2016). doi:10.1117/1.OE.55.7.071206
History: Received November 13, 2015; Accepted March 9, 2016
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Abstract.  The cylindrical coordinate measuring machine MarForm MFU200 can measure not only rotationally symmetric aspheric samples but also nonrotationally symmetric freeform surfaces. Applying both an optical and a tactile probe system, the measuring processes of the optical freeform surface and fiducials can be combined in a very flexible way. A strategy to measure freeforms including the determination of reference coordinate systems, the measuring process, and the analysis are discussed. In this process, fiducials defining a reference coordinate system are of fundamental importance. It is shown how different positions of fiducials can be measured.

© 2016 Society of Photo-Optical Instrumentation Engineers

Citation

Andreas Beutler
"Strategy for a flexible and noncontact measuring process for freeforms", Opt. Eng. 55(7), 071206 (Apr 12, 2016). ; http://dx.doi.org/10.1117/1.OE.55.7.071206


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