A gradient optical film and an optical construction including the gradient optical film are described. The gradient optical film includes a binder, a plurality of particles, and a plurality of interconnected voids having a local volume fraction. The local volume fraction of the plurality of interconnected voids varies along a thickness direction of the gradient optical film. The refractive index of the gradient optical film can also varies along a thickness direction of the gradient optical film, as the refractive index can also depend upon the local volume fraction of the plurality of interconnected voids.
申请公布号
EP2491439(A2)
申请公布日期
2012.08.29
申请号
EP20100825715
申请日期
2010.10.22
申请人
3M INNOVATIVE PROPERTIES COMPANY
发明人
HAAG, ADAM D.;EDMONDS, WILLIAM F.;PETAJA, JASON S.;NELSON, ERIC W.;KOLB, WILLIAM BLAKE;HAO, ENCAI;LU, FEI;FREE, MICHAEL BENTON