Electrical lenses switch modes at the flick of a switch.
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References
LiG., et al. Proc. Natl Acad. Sci. USA, doi:10.1073/pnas.0600850103 (2006).
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University of Arizona
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Ruttimann, J. Better bifocals on the horizon. Nature (2006). https://doi.org/10.1038/news060403-1
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DOI: https://doi.org/10.1038/news060403-1
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