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Proceedings Paper

Fast optical 3D form measurement of aspheres including determination of thickness and wedge and decenter errors
Author(s): E. Stover; G. Berger; M. Wendel; J. Petter
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Paper Abstract

A method for non-contact 3D form testing of aspheric surfaces including determination of decenter and wedge errors and lens thickness is presented. The principle is based on the absolute measurement capability of multi-wavelength interferometry (MWLI). The approach produces high density 3D shape information and geometric parameters at high accuracy in short measurement times. The system allows inspection of aspheres without restrictions in terms of spherical departures, of segmented and discontinuous optics. The optics can be polished or ground and made of opaque or transparent materials.

Paper Details

Date Published: 11 October 2015
PDF: 10 pages
Proc. SPIE 9633, Optifab 2015, 96331O (11 October 2015); doi: 10.1117/12.2197184
Show Author Affiliations
E. Stover, AMETEK GmbH (United States)
G. Berger, Luphos GmbH (Germany)
M. Wendel, Luphos GmbH (Germany)
J. Petter, Luphos GmbH (Germany)


Published in SPIE Proceedings Vol. 9633:
Optifab 2015
Julie L. Bentley; Sebastian Stoebenau, Editor(s)

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