Patent ID: 7081295

Claim:
A nanocomposite optical plastic article, comprising: a plastic host material having a refractive index n plastic host and a temperature sensitive optical vector x=dn plastic host /dT; a core shell nano-sized particulate material having a refractive index n particulate and having a temperature sensitive optical vector x p =dn particulate /dT wherein the temperature sensitive optical vector x p of the core-shell nano-sized composite particulate is directionally opposed to temperature sensitive optical vector x of the plastic host material is dispersed into said plastic host material, said core-shell nano-sized particulate material having a core material with a refractive index n core and a shell material having a refractive index n shell , wherein the refractive index n shell is lower than the refractive indices of both the host material, n plastic host , and the core material, n core and wherein the optical vector of said plastic host material x and the optical vector of said core-shell nano-sized composite particulate x p are opposite in sign and additionally the refractive index of said shell material n shell is less than the refractive indices of both said core material n core and said plastic host material n host plastic material so that n shell <n plastic host <n core .