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Optics Letters

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  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 16 — Aug. 15, 2014
  • pp: 4727–4730

Quantitative optical inspection of contact lenses immersed in wet cell using swept source OCT

Karol Karnowski, Ireneusz Grulkowski, Nishant Mohan, Ian Cox, and Maciej Wojtkowski  »View Author Affiliations


Optics Letters, Vol. 39, Issue 16, pp. 4727-4730 (2014)
http://dx.doi.org/10.1364/OL.39.004727


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Abstract

We demonstrate swept source optical coherence tomography (OCT) imaging of contact lenses (CLs) in a wet cell and comprehensive quantitative characterization of CLs from volumetric OCT datasets. The approach is based on a technique developed for lens autopositioning and autoleveling enabled by lateral capillary interactions between the wet cell wall and the lens floating on the liquid surface. The demonstrated OCT imaging has enhanced contrast due to the application of a scattering medium and it improves visualization of both CL interfaces and edges. We also present precise and accurate three-dimensional metrology of soft and rigid CLs based on the OCT data. The accuracy and precision of the extracted lens parameters are compared with the manufacturer’s specifications. The presented methodology facilitates industrial inspection methods of the CLs.

© 2014 Optical Society of America

OCIS Codes
(110.4500) Imaging systems : Optical coherence tomography
(120.4630) Instrumentation, measurement, and metrology : Optical inspection
(170.0110) Medical optics and biotechnology : Imaging systems
(170.4460) Medical optics and biotechnology : Ophthalmic optics and devices
(170.4470) Medical optics and biotechnology : Ophthalmology

ToC Category:
Medical Optics and Biotechnology

History
Original Manuscript: June 3, 2014
Manuscript Accepted: July 7, 2014
Published: August 6, 2014

Citation
Karol Karnowski, Ireneusz Grulkowski, Nishant Mohan, Ian Cox, and Maciej Wojtkowski, "Quantitative optical inspection of contact lenses immersed in wet cell using swept source OCT," Opt. Lett. 39, 4727-4730 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-16-4727


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