Patent 6851804 was granted and assigned to LG on February, 2005 by the United States Patent and Trademark Office.
The invention relates to optical elements whose optical properties can be repeatedly adjusted over time. Through the use of modifying compositions capable of stimulus induced polymerization coupled with a blend of stimulus absorbers and initiators, it is possible to repeatedly adjust the optical properties of the element by exposing the lens to a stimulus which exceeds the absorption capacity of the stimulus absorber.