Measurement of aspheric surfaces with 3D-deflectometry

I. Scheele; S. Krey; J. Heinisch

doi:10.1117/12.719713

14 May 2007 Measurement of aspheric surfaces with 3D-deflectometry

I. Scheele, S. Krey, J. Heinisch

Proceedings Volume 10316, Optifab 2007: Technical Digest; 103160P (2007) https://doi.org/10.1117/12.719713
Event: Optifab 2007, 2007, Rochester, New York, United States

Abstract

Using a high resolution two-dimensional angle sensor, 3D-Deflectometry determines the local slopes of an aspheric surface. The sensor scans the surface in spherical coordinates thus measuring the deviation from a reference sphere. A new fault tolerant software algorithm transfers slope information into surface topography data simultaneously correcting for systematic errors of the instrument. In this way various surface types can be characterized; convex and concave standard shapes as well as toric or even free form surfaces.

Citation Download Citation

I. Scheele, S. Krey, and J. Heinisch "Measurement of aspheric surfaces with 3D-deflectometry", Proc. SPIE 10316, Optifab 2007: Technical Digest, 103160P (14 May 2007); https://doi.org/10.1117/12.719713

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