Lenses capable of post-fabrication power modification
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United States of America Patent
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Nov 30, 2004
Grant Date -
Sep 18, 2003
app pub date -
Feb 3, 2003
filing date -
Jan 12, 1999
priority date (Note) -
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status (Latency Note)
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Abstract
The present invention relates to lenses that are capable of post-fabrication power modifications. In general, the inventive lenses comprise (i) a first polymer matrix and (ii) a refraction modulating composition that is capable of stimulus-induced polymerization dispersed therein. When at least a portion of the lens is exposed to an appropriate stimulus, the refraction modulating composition forms a second polymer matrix. The amount and location of the second polymer matrix may modify a lens characteristic such as lens power by changing its refractive index and/or by altering its shape. The inventive lenses have a number of applications in the electronics and medical fields as data storage means and as medical lenses, particularly intraocular lenses, respectively.
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