公开(公告)号：WO2011050226A1

公开(公告)日：2011-04-28

申请号：PCT/US2010/053655

申请日：2010-10-22

Applicant: 3M INNOVATIVE PROPERTIES COMPANY ,  WEBER, Michael F. ,  LIU, Tao ,  NEVITT, Timothy J.

Inventor： WEBER, Michael F. ,  LIU, Tao ,  NEVITT, Timothy J.

IPC: G02B5/30 ,  G02F1/1335

CPC classification number: G02B5/3041 ,  G02B5/305 ,  G02F1/13362

Abstract: A film construction (330) includes a broad band reflective polarizing film (312) that may be immersed in an ultra low refractive index medium (332, 334). The reflecting polarizing film is characterized by a pass axis and a block axis, and its reflectivity for white light of the pass state polarization increases with increasing incidence angle to provide a compressed or narrowed viewing cone selectively in one plane of incidence. In some embodiments, the plane of incidence associated with the compressed viewing cone is aligned with the pass axis. In other embodiments it is aligned with the block axis.

Abstract translation: 膜结构（330）包括可以浸入超低折射率介质（332,334）中的宽带反射偏振膜（312）。 反射偏振膜的特征在于通过轴和块轴，并且其通过状态偏振的白光的反射率随着入射角的增加而增加，以在一个入射平面中选择性地提供压缩或变窄的观察锥。 在一些实施例中，与压缩观察锥相关联的入射平面与通过轴对准。 在其他实施例中，它与块轴对齐。

公开(公告)号：WO2009151842A2

公开(公告)日：2009-12-17

申请号：PCT/US2009/043405

申请日：2009-05-11

Applicant: 3M INNOVATIVE PROPERTIES COMPANY ,  WHEATLEY, John A. ,  BIERNATH, Rolf, W. ,  MEIS, Michael, A. ,  FREIER, David, G. ,  LIU, Tao ,  NEVITT, Timothy, J.

Inventor： WHEATLEY, John A. ,  BIERNATH, Rolf, W. ,  MEIS, Michael, A. ,  FREIER, David, G. ,  LIU, Tao ,  NEVITT, Timothy, J.

IPC: G02F1/13357 ,  G02F1/1335 ,  F21V8/00

CPC classification number: G02F1/133605 ,  G02F1/133603 ,  G02F1/133611

Abstract: Illumination devices having a partially transmissive front reflector, a back reflector, and a cavity between them are disclosed. At least one light injector including a baffle and a light source is disposed in the cavity. The light injector is capable of injecting partially collimated light into the cavity. The output area of the illumination device can be increased by disposing light injectors progressively within the cavity, without sacrificing uniformity of the light emitted through the output area.

Abstract translation: 公开了具有部分透射的前反射器，后反射器和它们之间的空腔的照明装置。 包括挡板和光源的至少一个光注射器设置在空腔中。 光注射器能够将部分准直的光注入空腔。 可以通过将光注入器逐渐地设置在空腔内来增加照明装置的输出面积，而不会牺牲通过输出区域发射的光的均匀性。

公开(公告)号：WO2009085543A1

公开(公告)日：2009-07-09

申请号：PCT/US2008/085346

申请日：2008-12-03

Applicant: 3M INNOVATIVE PROPERTIES COMPANY ,  KINDER, Brian A. ,  BOYD, Gary T. ,  ECKHARDT, Stephen K. ,  TING, Chun-Yi ,  TUNG, Han-Lin ,  RIVARD, Linda M. ,  LIU, Tao

Inventor： KINDER, Brian A. ,  BOYD, Gary T. ,  ECKHARDT, Stephen K. ,  TING, Chun-Yi ,  TUNG, Han-Lin ,  RIVARD, Linda M. ,  LIU, Tao

IPC: G02F1/1335 ,  G02B6/00 ,  F21V8/00

CPC classification number: G02B6/0055 ,  G02B5/045 ,  G02B6/0046 ,  G02B6/0053

Abstract: A back reflector for a lightguide in a turning film backlight includes a prism film layer in direct contact with a reflective layer. The lightguide includes a light guiding region having a refractive index that is substantially spatially uniform. The reflective layer may be specular or diffuse and may include a multilayer polymeric film.

Abstract translation: 用于转向膜背光中的光导的后反射器包括与反射层直接接触的棱镜膜层。 光导包括具有基本空间均匀的折射率的导光区域。 反射层可以是镜面的或扩散的，并且可以包括多层聚合物膜。

公开(公告)号：WO2022084827A1

公开(公告)日：2022-04-28

申请号：PCT/IB2021/059575

申请日：2021-10-18

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： KENNEY, Raymond J. ,  LIU, Tao ,  GOTRIK, Kevin W. ,  NELSON, Caleb T. ,  JOHNSON, Nicholas A. ,  SCHMIDT, Daniel J.

IPC: G02B5/00 ,  G02F1/1335 ,  G09F9/00

Abstract: A light control film comprising a light input surface and a light output surface opposite the light input surface; alternating transmissive regions and absorptive regions disposed between the light input surface and the light output surface, wherein each absorptive region has an aspect ratio of at least 30, and wherein each transmissive region has a first refractive index; and a plurality of low index layers, wherein each low index layer is disposed between each transmissive region and an adjacent absorptive region, and wherein each low index layer has a second refractive index less than the first refractive index of each transmissive region.

公开(公告)号：WO2019030607A1

公开(公告)日：2019-02-14

申请号：PCT/IB2018/055673

申请日：2018-07-30

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： LIU, Tao ,  LU, Yongshang ,  MERCORD, David C. ,  OSTLIE, Brian W.

IPC: F21V8/00

Abstract: An optical system includes a lightguide having opposing top and bottom major surfaces. A round through opening extends between the two surfaces of the lightguide. An elongated channel is formed in one of the surfaces and at least partially surrounds and is substantially concentric with the opening. The channel has a depth (d) that varies along its length. Light extractors extract light that would otherwise propagate within and along the lightguide. The features of the lightguide can be varied to optimize performance of the lightguide for various purposes.

公开(公告)号：WO2017105912A1

公开(公告)日：2017-06-22

申请号：PCT/US2016/065072

申请日：2016-12-06

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： LIU, Tao ,  OSTLIE, Brian W. ,  HEDDING, Brent A. ,  MERCORD, David C. ,  JOHANSON, Bradley J.

IPC: F21V8/00

CPC classification number: G02B6/001 ,  G02B6/0006 ,  G02B6/0028 ,  G02B6/0068 ,  G02B6/0073

Abstract: Light guide assemblies including first, second and third light guides, a first optical coupling component disposed between and attached to the first and second light guides, and a second optical coupling component disposed between and attached to the second and third light guides are described. The first optical coupling component is adapted to couple light between the first and second light guides, and the second optical coupling component is adapted to couple light the between second and third light guides. The first light guide, the second light guide and the first optical coupling component are coextensive over a first region of the assembly, and the second light guide, the third light guide and the second optical coupling component are coextensive over a different second region of the assembly.

Abstract translation: 包括第一，第二和第三光导的光导组件，布置在第一和第二光导之间并附接到第一和第二光导的第一光耦合组件，以及布置在第二和第二光导之间并附连到第二光耦合组件 和第三光导被描述。 第一光耦合组件适于在第一和第二光导之间耦合光，并且第二光耦合组件适于耦合第二和第三光导之间的光。 第一光导，第二光导和第一光学耦合部件共同延伸在组件的第一区域上，并且第二光导，第三光导和第二光学耦合部件共同延伸到第二光导的第二区域 组装

公开(公告)号：WO2017040212A1

公开(公告)日：2017-03-09

申请号：PCT/US2016/048733

申请日：2016-08-25

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： LIU, Tao ,  HEDDING, Brent A. ,  MERCORD, David C. ,  OSTLIE, Brian W. ,  ENDER, David A.

IPC: F21V8/00

CPC classification number: G02B6/0036 ,  G02B6/006 ,  G02B6/0068

Abstract: Lightguides including pixelated images, and methods of making the lightguides are provided. The lightguides include an image formed on a major side which is illuminated for directly viewing. The image includes an elongated portion being pixelated into an array of pixels. Each of the pixels includes a single light extracting structure adapted to receive the propagating light within the lightguide along the optical axis and extract the received light transversely out of the lightguide.

Abstract translation: 提供包括像素化图像的光导，以及制造光导的方法。 光导包括形成在主要侧面上的图像，其被照亮用于直接观看。 图像包括被像素化成像素阵列的细长部分。 每个像素包括单个光提取结构，其适于沿着光轴接收光导内的传播光，并将接收的光横向地从光导中提取出来。

公开(公告)号：WO2011071728A1

公开(公告)日：2011-06-16

申请号：PCT/US2010/058526

申请日：2010-12-01

Applicant: 3M INNOVATIVE PROPERTIES COMPANY ,  WHEATLEY, John A. ,  LIU, Tao ,  HAO, Encai

Inventor： WHEATLEY, John A. ,  LIU, Tao ,  HAO, Encai

IPC: G02B6/00

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 (120) disposed between a low absorption layer (101) and a high absorption layer (103) 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 (110). A second tier of reflection occurs at the surface of a light redirecting film having appropriately oriented refractive structures.

Abstract translation: 光学构造使用设置在低吸收层（101）和高吸收层（103）之间的低折射率折射率层（120），以增加对光学构造的低吸收区域的光的约束。 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导光体（110）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。

公开(公告)号：WO2011050254A1

公开(公告)日：2011-04-28

申请号：PCT/US2010/053719

申请日：2010-10-22

Applicant: 3M INNOVATIVE PROPERTIES COMPANY ,  WHEATLEY, John, A. ,  LIU, Tao ,  HAO, Encai ,  KOLB, William, Blake ,  FREE, Michael, Benton

Inventor： WHEATLEY, John, A. ,  LIU, Tao ,  HAO, Encai ,  KOLB, William, Blake ,  FREE, Michael, Benton

IPC: G02B6/00 ,  F21V8/00

CPC classification number: F21V13/14 ,  F21V9/14 ,  G02B6/005 ,  G02B6/0051 ,  G02B6/0096 ,  G02F1/133602

Abstract: Light sources are disclosed. A disclosed light source includes an optically reflective cavity that includes an input port for receiving light and an output port for transmitting light, a lamp that is disposed at the input port, and an optical stack that is disposed at the output port. The optical stack includes a forward scattering optical diffuser that is disposed at the output port and has an optical haze that is not less than about 20%, and an optical film that is disposed on the optical diffuser. The optical film enhance total internal reflection at the interface between the optical film and the optical diffuser. The optical film has an index of refraction that is not greater than about 1.3 and an optical haze that is not greater than about 5%. The optical stack also includes a reflective polarizer layer that is disposed on the optical film. Substantial portions of each two neighboring major surfaces in the optical stack are in physical contact with each other.

Abstract translation: 公开了光源。 所公开的光源包括光反射腔，其包括用于接收光的输入端口和用于传输光的输出端口，设置在输入端口处的灯以及设置在输出端口处的光学堆叠。 光学堆叠包括设置在输出端口并具有不小于约20％的光学雾度的前向散射光学漫射器和设置在光学漫射器上的光学膜。 光学膜增强了在光学膜和光学漫射器之间的界面处的全内反射。 光学膜的折射率不大于约1.3，光学雾度不大于约5％。 光学堆叠还包括设置在光学膜上的反射偏振器层。 光学堆叠中每两个相邻的主要表面的实质部分彼此物理接触。

公开(公告)号：WO2011050233A1

公开(公告)日：2011-04-28

申请号：PCT/US2010/053670

申请日：2010-10-22

Applicant: 3M INNOVATIVE PROPERTIES COMPANY ,  WEBER, Michael F. ,  NEVITT, Timothy J. ,  LIU, Tao ,  WHEATLEY, John A.

Inventor： WEBER, Michael F. ,  NEVITT, Timothy J. ,  LIU, Tao ,  WHEATLEY, John A.

IPC: G02B5/30 ,  G02F1/1335

CPC classification number: G02B5/305 ,  G02B6/005 ,  G02F1/13362

Abstract: A film construction (610) includes a group of microlayers that reflect normally incident light polarized along a first axis more than normally incident light polarized along a second axis. The microlayers are arranged into optical repeat units (ORUs) that have a layer thickness distribution along a thickness axis perpendicular to the first and second axes that provides the group of microlayers with an intermediate reflectivity over an extended reflection band for a given incidence condition. The ORUs include thinner ORUs whose thicknesses are less than an average thickness, and thicker ORUs whose thicknesses are greater than the average thickness. The group of microlayers is optically immersed in a medium having a refractive index greater than air, such that "supercritical light" can propagate through the microlayers. The microlayers are oriented such that, on average, the thinner ORUs are closer than the thicker ORUs to an output surface of the construction. By "supercritical light" is meant that travels through the film at an angle that is more oblique than can be achieved by illumination from air using a flat, smooth air/film interface.

Abstract translation: 膜结构（610）包括一组微层，其反射正常入射的光沿着第一轴偏振，而不是沿着第二轴偏振的正常入射光。 微层被布置成光学重复单元（ORU），光学重复单元具有沿着垂直于第一和第二轴线的厚度轴线的层厚度分布，其为给定的入射条件在延伸的反射带上提供了一组微层的中间反射率。 ORU包括厚度小于平均厚度的更薄的ORU，以及厚度大于平均厚度的较厚ORU。 微组织光学地浸入折射率大于空气的介质中，使得“超临界光”可以通过微层传播。 微层的取向使得平均来说，更薄的ORU比较厚的ORU更接近结构的输出表面。 “超临界光”是指以比通过使用平坦，平滑的空气/膜界面的空气照明可以实现的倾斜更倾斜的角度穿过膜。