<p>A light directing film and an optical system incorporating same are disclosed. The light directing film includes a first major surface and a microstructured second major surface. The microstructured second major surface has at least two periodic microstructured patterns. The first periodic pattern is arranged along a first direction. The second periodic pattern is arranged along a second direction different from the first direction.</p>
申请公布号
WO2007143341(A1)
申请公布日期
2007.12.13
申请号
WO2007US68891
申请日期
2007.05.14
申请人
3M INNOVATIVE PROPERTIES COMPANY
发明人
JOHNSON, TODD M.;TOMA, TETSUYA;MARUSHIN, PATRICK H.