Spherical aberration standards and measurement system stability over time

David Compertore; Filipp Ignatovich; Michael Marcus

doi:10.1117/12.2200975

12 October 2015 Spherical aberration standards and measurement system stability over time

David Compertore, Filipp Ignatovich, Michael Marcus

Proceedings Volume 9633, Optifab 2015; 96331X (2015) https://doi.org/10.1117/12.2200975
Event: SPIE Optifab, 2015, Rochester, New York, United States

Abstract

A Shack-Hartmann wave-front sensor system has been used to measure a set of plano-convex lenses at two different times, separated by almost 2 years. The plano-convex lenses were selected to cover a range of powers and apertures relevant to intraocular lenses, and were measured at two different orientations. The results demonstrate the high temporal stability of the measurement system, as well as of the glass standard.

In addition, both times the effective focal lengths of the standards were measured using a NIST traceable nodal slide bench, and the center thicknesses were measured using low-coherence interferometer. The spherical aberration and the effective focal length results are analyzed for statistically significant changes. The results are also compared to the Zemax models of the standards.

Citation Download Citation

David Compertore, Filipp Ignatovich, and Michael Marcus "Spherical aberration standards and measurement system stability over time", Proc. SPIE 9633, Optifab 2015, 96331X (12 October 2015); https://doi.org/10.1117/12.2200975

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KEYWORDS

Monochromatic aberrations

Lenses

Spherical lenses

Refractive index

Calibration

Crystals

Wavefront sensors

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