公开(公告)号：US20150109821A1

公开(公告)日：2015-04-23

申请号：US14583991

申请日：2014-12-29

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： David Scott Thompson ,  Zhaohui Yang ,  Matthew S. Stay

IPC: F21V8/00

CPC classification number: G02B6/0045 ,  B82Y20/00 ,  F21S8/06 ,  F21V3/049 ,  F21V7/0008 ,  F21V2200/20 ,  F21Y2101/00 ,  F21Y2105/00 ,  F21Y2113/13 ,  F21Y2113/20 ,  F21Y2115/10 ,  G02B6/0035 ,  G02B6/0038 ,  G02B6/005 ,  G02B6/006 ,  G02B6/0063 ,  G02B6/0065 ,  G02B6/0068 ,  G02B6/0073 ,  G02B6/0076 ,  G02B6/0078 ,  G02B6/0095

Abstract: Extended area lighting devices, which are useful e.g. as luminaires, include a light guide and diffractive surface features on a major surface of the light guide. The diffractive surface features are tailored to extract guided-mode light from the light guide. The light guides can be combined with other components and features such as light source(s) to inject guided-mode light into the light guide, light source(s) to project light through the light guide as non-guided-mode light, a framework of interconnected support members (attached to multiple such light guides), and/or a patterned low index subsurface layer that selectively blocks some guided mode light from reaching the diffractive surface features, to provide unique and useful lighting devices. Related optical devices, and optical films having diffractive features that can be used to construct such devices and light guides, are also disclosed.

Abstract translation: 扩展区域照明装置，例如， 作为灯具，在光导的主表面上包括光导和衍射表面特征。 衍射表面特征被定制以从光导中提取导模。 光导可以与诸如光源的其他部件和特征结合，以将导模模式的光注入到光导中，光源以非导向模式的光将光投射通过光导， 互连支撑构件的框架（附接到多个这样的光导），和/或图案化的低折射率地下层，其选择性地阻挡一些导光模式光到达衍射表面特征，以提供独特且有用的照明装置。 还公开了相关的光学器件和具有可用于构造这种器件和光导的衍射特征的光学膜。

公开(公告)号：US20140071653A1

公开(公告)日：2014-03-13

申请号：US14116806

申请日：2012-05-09

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： David Scott Thompson ,  Kevin R. Schaffer ,  Zhaohui Yang ,  Encai Hao ,  Audrey A. Sherman ,  Michael A. Meis ,  John A. Wheatley ,  Matthew S. Stay ,  Robert F. Kamrath ,  Mikhail L. Pekurovsky ,  Steven D. Solomonson

IPC: F21V8/00

CPC classification number: G02B6/005 ,  G02B6/0043 ,  G02B6/0055 ,  G02B6/0056 ,  G02B6/0058 ,  G02B6/0066

Abstract: This application describes a back-lit transmissive display including a transmissive display (620) and a variable index light extraction layer (640) optically coupled to a lightguide (630). The variable index light extraction layer has first regions (140) of nanovoided polymeric material and second regions (130) of the nanovoided polymeric material and an additional material. The first and second regions are disposed such that for light being transported at a supercritical angle in the lightguide, the variable index light extraction layer selectively extracts the light in a predetermined way based on the geometric arrangement of the first and second regions. The transmissive display may be a transmissive display panel or a polymeric film such as a graphic.

Abstract translation: 该应用描述了背光透射显示器，其包括光学耦合到光导（630）的透射显示器（620）和可变折射率光提取层（640）。 可变折射率光提取层具有纳米型聚合物材料的第一区域（140）和纳米复合聚合物材料的第二区域（130）和附加材料。 第一和第二区域被布置成使得对于在光导中以超临界角传输的光，可变索引光提取层基于第一和第二区域的几何布置以预定方式选择性地提取光。 透射显示器可以是透射显示面板或诸如图形的聚合物膜。