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