Patent ID: 7821719

Claim:
An optical element comprising: a first transparent layer and a second transparent layer; and a cured polymer layer sandwiched between the first and second transparent layers, wherein, prior to curing, the polymer layer comprises a matrix polymer having a monomer mixture dispersed therein, wherein the matrix polymer is the product of a chemical reaction between at least a thiol monomer, a crosslinking agent, and a polymer, wherein the crosslinking agent is selected from the group consisting of polyethyleneimine and tetraalkyl ammonium halide, wherein the polymer is selected from the group consisting of unsaturated polyester, unsaturated polystyrene, unsaturated polyacrylate, epoxy polymer, isocyanate polymer, and mixtures thereof, and wherein the monomer mixture comprises a thiol monomer and at least one second monomer selected from the group consisting of ene monomer and yne monomer.