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Proceedings Paper

Survey of fiducials, edges and the backside surface for the measurement of aspheres and freeforms
Author(s): Andreas Beutler
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Paper 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.

Paper Details

Date Published: 30 June 2016
PDF: 5 pages
Proc. SPIE 10009, Third European Seminar on Precision Optics Manufacturing, 100090D (30 June 2016); doi: 10.1117/12.2235688
Show Author Affiliations
Andreas Beutler, Mahr GmbH (Germany)

Published in SPIE Proceedings Vol. 10009:
Third European Seminar on Precision Optics Manufacturing
Rolf Rascher; Oliver Fähnle; Christine Wünsche; Christian Schopf, Editor(s)

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