公开(公告)号：US20150131311A1

公开(公告)日：2015-05-14

申请号：US14557231

申请日：2014-12-01

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： John A. Wheatley ,  Tao Liu ,  Encai Hao

IPC: F21V8/00

CPC classification number: G02B6/0056 ,  G02B6/0018 ,  G02B6/0021 ,  G02B6/0035 ,  G02B6/0043 ,  G02B6/005 ,  G02B6/0051 ,  G02B6/0053 ,  G02B6/0068 ,  G02B6/0073 ,  G02B6/0075 ,  G02B6/008 ,  G02B2207/107

Abstract: Optical constructions use a low index of refraction layer disposed between a low absorption layer and a high absorption layer to increase confinement of light to the low absorption region of the optical constructions. Low index layers can be used in optical constructions that have multi-tiered light confinement. In these constructions, a first tier of reflection is provided when light is reflected at the surface of a low index optical film which is disposed directly or indirectly on a light guide. A second tier of reflection occurs at the surface of a light redirecting film having appropriately oriented refractive structures.

Abstract translation: 光学结构使用设置在低吸收层和高吸收层之间的低折射率层，以增加光对光学结构的低吸收区域的约束。 低折射率层可用于具有多层光限制的光学结构中。 在这些结构中，当在直接或间接设置在光导上的低折射率光学膜的表面反射光时，提供第一层反射。 在具有适当取向的折射结构的光重定向膜的表面上发生第二层反射。