Fast optical 3D form measurement of aspheres including determination of thickness and wedge and decenter errors

E. Stover; G. Berger; M. Wendel; J. Petter

doi:10.1117/12.2197184

11 October 2015 Fast optical 3D form measurement of aspheres including determination of thickness and wedge and decenter errors

E. Stover, G. Berger, M. Wendel, J. Petter

Author Affiliations +

Proceedings Volume 9633, Optifab 2015; 96331O (2015) https://doi.org/10.1117/12.2197184
Event: SPIE Optifab, 2015, Rochester, New York, United States

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.

Citation Download Citation

E. Stover, G. Berger, M. Wendel, and J. Petter "Fast optical 3D form measurement of aspheres including determination of thickness and wedge and decenter errors", Proc. SPIE 9633, Optifab 2015, 96331O (11 October 2015); https://doi.org/10.1117/12.2197184

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