| 发明名称 |
Energy efficient sign |
| 摘要 |
A light directing composite film includes a planar top major surface, a planar bottom major surface, a plurality of lenticular lens elements disposed between the top major surface and the bottom major surface, and a plurality of light reflection regions and light transmission regions disposed between the plurality of lenticular lens and the planar bottom major surface. |
| 申请公布号 |
US9039245(B2) |
申请公布日期 |
2015.05.26 |
| 申请号 |
US201013519364 |
申请日期 |
2010.12.28 |
| 申请人 |
3M INNOVATIVE PROPERTIES COMPANY |
发明人 |
Meis Michael A.;Freier David G.;Fleming Patrick R. |
| 分类号 |
F21V13/04;G09F13/10;G02B3/00;G02B5/02;G09F13/14;G09F13/04;G09F13/22 |
主分类号 |
F21V13/04 |
| 代理机构 |
|
代理人 |
Blank Colene;Bern Steven A. |
| 主权项 |
1. A light directing composite film comprising;
a planar top major surface comprising a light transparent substrate having a pressure sensitive adhesive layer disposed thereon; a planar bottom major surface; a plurality of lenticular lens elements disposed between the top major surface and the bottom major surface; and a plurality of light reflection regions and light transmission regions disposed between the plurality of lenticular lens and the planar bottom major surface. |
| 地址 |
St. Paul MN US |
