A light directing film includes a back major surface having light reflection regions and light transmission regions and being planar, and a front major surface opposing the back surface. The front surface is planar and a plurality of lenses is disposed between the front surface and the back surface. At least selected light transmission regions are registered with selected lens elements. A method for forming the light directing film and illuminated signs utilizing the light directing films are also described.
申请公布号
US2013100647(A1)
申请公布日期
2013.04.25
申请号
US201113807166
申请日期
2011.06.29
申请人
SHERMAN AUDREY A.;SCHAFFER KEVIN R.;THOMPSON DAVID SCOTT;MERRILL WILLIAM WARD;MEIS MICHAEL A.;3M INNOVATIVE PROPERTIES COMPANY
发明人
SHERMAN AUDREY A.;SCHAFFER KEVIN R.;THOMPSON DAVID SCOTT;MERRILL WILLIAM WARD;MEIS MICHAEL A.