Deflectometry for ophthalmic optics testing and the impact of test surface orientation

Rebecca Su; Heejoo Choi; Daewook Kim; James Schwiegerling

doi:10.1117/12.2676217

4 October 2023 Deflectometry for ophthalmic optics testing and the impact of test surface orientation

Rebecca Su, Heejoo Choi, Daewook Kim, James Schwiegerling

Proceedings Volume 12672, Applied Optical Metrology V; 1267206 (2023) https://doi.org/10.1117/12.2676217
Event: SPIE Optical Engineering + Applications, 2023, San Diego, California, United States

Abstract

The effects of the misalignment of a test surface in a deflectometry system were explored. A Stewart Platform Hexapod stage was used to create the intentional misalignment, rotate the test surface position around the X and Y axes as well as displace their Z location. The measured surface maps were analyzed in coefficients of a fit of the surface map to the Zernike coefficients. The Zernike term results were adopted to show the relationship between the induced pose changes and the reconstructed surface map. Such an understanding of the errors in location and orientation and deflectometry measurement results would be beneficial in the future measurement of ophthalmic optics with a deflectometry system.

Conference Presentation

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Rebecca Su, Heejoo Choi, Daewook Kim, and James Schwiegerling "Deflectometry for ophthalmic optics testing and the impact of test surface orientation", Proc. SPIE 12672, Applied Optical Metrology V, 1267206 (4 October 2023); https://doi.org/10.1117/12.2676217

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