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On-demand photoinitiated polymerization

United States Patent

December 10, 2013
View the Complete Patent at the US Patent & Trademark Office
Compositions and methods for adjustable lenses are provided. In some embodiments, the lenses contain a lens matrix material, a masking compound, and a prepolymer. The lens matrix material provides structure to the lens. The masking compound is capable of blocking polymerization or crosslinking of the prepolymer, until photoisomerization of the compound is triggered, and the compound is converted from a first isomer to a second isomer having a different absorption profile. The prepolymer is a composition that can undergo a polymerization or crosslinking reaction upon photoinitiation to alter one or more of the properties of the lenses.
Boydston; Andrew J. (Seattle, WA), Grubbs; Robert H. (South Pasadena, CA), Daeffler; Chris (Pasadena, CA), Momcilovic; Nebojsa (Vienna, VA)
California Institute of Technology (Pasadena, CA)
13/ 177,483
July 6, 2011
ACKNOWLEDGEMENT OF GOVERNMENT SUPPORT This invention was made with U.S. Government support under Grant No. DE-FG02-05ER46218 awarded by the Department of Energy and Grant No. GM031332 awarded by the National Institutes of Health. The Government has certain rights in the invention.