| Issue |
J. Eur. Opt. Soc.-Rapid Publ.
Volume 8, 2013
|
|
|---|---|---|
| Article Number | 13006 | |
| Number of page(s) | 4 | |
| DOI | https://doi.org/10.2971/jeos.2013.13006 | |
| Published online | 31 January 2013 | |
Regular papers
Influence of interfaces reflectivity for central thickness measurement of a contact lens by low coherence interferometry
1
Laboratoire Hubert Curien (UMR 5516 CNRS), Université de Lyon, Université Jean Monnet, 42000 Saint-Etienne, France
2
Institut d’Optique Rhône-Alpes, 18 rue Benoît Lauras, 42000 Saint-Etienne, France
* isabelle.verrier@univ-st-etienne.fr
Received:
9
October
2012
Revised:
6
December
2012
Revised:
18
December
2012
This paper evaluates quantitatively the relative interfaces reflectivity of a soft contact lens set in air or in water by a low coherence interferometric method. The sensitivity of the set-up is then measured and the minimum reflectivity is estimated to be as low as 0.02%. Measurement of the central thickness of the lens, even when it is immersed in water, is then possible using a new supercontinuum source.
Key words: Low coherence interferometry / optical instrument / contact lens
© The Author(s) 2013. All rights reserved.
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