| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical lens and a window material consisting of a nanocomposite material containing inorganic particles and organic polymer resin, wherein the refractive index variation to a temperature change is decreased and high optical transparency is maintained.SOLUTION: In the nanocomposite material composing the optical lens, the inorganic particles whose average primary particle diameter is 40 nm or less are dispersed in a resin obtained by polymerizing a polymerization monomer consisting mainly of bisphenol A acrylate or bisphenol A methacrylate whose molecular weight is 400 to 1,000. |
