Survey of fiducials, edges and the backside surface for the measurement of aspheres and freeforms

Andreas Beutler

doi:10.1117/12.2235688

30 June 2016 Survey of fiducials, edges and the backside surface for the measurement of aspheres and freeforms

Andreas Beutler

Proceedings Volume 10009, Third European Seminar on Precision Optics Manufacturing; 100090D (2016) https://doi.org/10.1117/12.2235688
Event: Third European Seminar on Precision Optics Manufacturing, 2016, Teisnach, Germany

Abstract

In addition to the aspheric or freeform surface a lens or mirror also contains other structures such as edges and fiducials. These surfaces are important for the production process including the assembly of the optical system. It is demonstrated how these structures can be measured with a high precision cylindrical coordinate measuring system involving an optical and a tactile probe system. The measurements reveal a reference coordinate system which defines the position and orientation of the freeform surface which is also a necessary requirement for the measurement of the freeform surface.

Citation Download Citation

Andreas Beutler "Survey of fiducials, edges and the backside surface for the measurement of aspheres and freeforms", Proc. SPIE 10009, Third European Seminar on Precision Optics Manufacturing, 100090D (30 June 2016); https://doi.org/10.1117/12.2235688

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