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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 7, Iss. 3 — Feb. 29, 2012

Photochromic dynamics of ophthalmic lenses

Timo Eppig, Alexis Speck, Melanie Gillner, Dieter Nagengast, and Achim Langenbucher  »View Author Affiliations


Applied Optics, Vol. 51, Issue 2, pp. 133-138 (2012)
http://dx.doi.org/10.1364/AO.51.000133


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Abstract

We describe and characterize a straightforward test setup for characterizing temporal and spectral dynamics of photochromic spectacle materials. Three measurement examples of contemporary silicate and organic photochromic spectacles are provided. The setup showed a good absolute accuracy of 5% of the luminous transmittance (τv) and repeatability of better than 3%. The samples showed different fading times. The sample with the highest dynamic range was the slowest and showed a noticeable change in the transmission spectra during deactivation. The silicate had the lowest dynamic range but also the most homogeneous transmission spectra throughout activation and deactivation. The proposed test device provided accurate results for spectral and temporal dynamics of photochromic materials under realistic conditions.

© 2012 Optical Society of America

OCIS Codes
(120.6200) Instrumentation, measurement, and metrology : Spectrometers and spectroscopic instrumentation
(120.7000) Instrumentation, measurement, and metrology : Transmission
(330.4460) Vision, color, and visual optics : Ophthalmic optics and devices
(160.5335) Materials : Photosensitive materials

ToC Category:
Materials

History
Original Manuscript: August 11, 2011
Revised Manuscript: September 23, 2011
Manuscript Accepted: October 16, 2011
Published: January 4, 2012

Virtual Issues
Vol. 7, Iss. 3 Virtual Journal for Biomedical Optics

Citation
Timo Eppig, Alexis Speck, Melanie Gillner, Dieter Nagengast, and Achim Langenbucher, "Photochromic dynamics of ophthalmic lenses," Appl. Opt. 51, 133-138 (2012)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ao-51-2-133


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