公开(公告)号：US20130128549A1

公开(公告)日：2013-05-23

申请号：US13741716

申请日：2013-01-15

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Michael F. Weber ,  Timothy J. Hebrink ,  Timothy J. Nevitt ,  John A. Wheatley ,  Craig R. Schardt ,  Rolf W. Biernath ,  William J. Bryan ,  Andrew J. Ouderkirk ,  David G. Freier ,  Myron K. Jordan ,  Kristopher J. Derks ,  Zhaohui Yang ,  Edward J. Kivel

IPC: F21V7/04

CPC classification number: F21K9/54 ,  F21K9/62 ,  F21V7/04 ,  G02B5/305 ,  G02B5/3083 ,  G02B6/0055 ,  G02B6/0056 ,  G02B6/0073 ,  G02B6/0096 ,  G02B27/286 ,  G02F1/133605 ,  G02F1/13362 ,  G02F2001/133545

Abstract: A backlight that includes a front reflector and a back reflector that form a hollow light recycling cavity including an output surface is disclosed. The backlight further includes one or more light sources disposed to emit light into the light recycling cavity. The front reflector includes an on-axis average reflectivity of at least 90% for visible light polarized in a first plane, and an on-axis average reflectivity of at least 25% but less than 90% for visible light polarized in a second plane perpendicular to the first plane.

Abstract translation: 公开了一种包括形成包括输出表面的中空光循环腔的前反射器和后反射器的背光源。 背光源还包括设置成将光发射到光循环腔中的一个或多个光源。 前反射器包括在第一平面中偏振的可见光的至少90％的轴上平均反射率，以及垂直于第二平面偏振的可见光的至少25％但小于90％的轴上平均反射率 到第一架飞机。

公开(公告)号：US09891362B2

公开(公告)日：2018-02-13

申请号：US14509704

申请日：2014-10-08

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Michael F. Weber ,  Timothy J. Nevitt ,  Roger J. Strharsky

IPC: G02B5/30 ,  G02B27/28 ,  G02F1/1335

CPC classification number: G02B5/3041 ,  G02B5/3083 ,  G02B27/281 ,  G02F1/133536 ,  G02F2001/133545

Abstract: A hybrid polarizer includes an absorbing element having a first major surface and a second major surface. The hybrid polarizer also includes a first birefringent reflective polarizer disposed on the first major surface of the absorbing element, the first birefringent reflective polarizer having a first pass axis and a first block axis. The hybrid polarizer further includes a second birefringent reflective polarizer disposed on the second major surface of the absorbing element, the second reflective polarizer having a second pass axis and a second block axis.

公开(公告)号：US09778407B2

公开(公告)日：2017-10-03

申请号：US14254669

申请日：2014-04-16

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Timothy J. Nevitt ,  Charles David Hoyle ,  Michael F. Weber ,  Andrew J. Ouderkirk

IPC: G02F1/1335 ,  F21V8/00

CPC classification number: G02B6/0036 ,  G02B6/0028 ,  G02B6/0061 ,  G02F1/133524

Abstract: A light guide having a first major surface, a second major surface, an input edge and an opposing edge, where at least one of the first major surface and the second major surface includes a plurality of multiplets. Each multiplet includes two or more extraction features having an indented geometry.

公开(公告)号：US09562996B2

公开(公告)日：2017-02-07

申请号：US13844664

申请日：2013-03-15

Applicant: 3M Innovative Properties Company

Inventor： Edward J. Kivel ,  Timothy J. Nevitt ,  Michael F. Weber

IPC: G02B5/08 ,  G02B5/28 ,  G02B5/30 ,  G02B27/14

CPC classification number: G02B5/0841 ,  G02B5/281 ,  G02B5/285 ,  G02B5/287 ,  G02B5/3041 ,  G02B5/305 ,  G02B27/142

Abstract: A broadband mirror, polarizer, or other reflector includes separate stacks of microlayers. Microlayers in each stack are arranged into optical repeat units, and the stacks are arranged in series. At a design angle of incidence such as normal incidence, the second stack provides a second 1st order reflection band and a distinct second 2nd order reflection band with a second spectral pass band therebetween. The first stack provides a first 1st order reflection band that fills the second spectral pass band such that a single wide reflection band is formed that includes the first 1st order reflection band, the second 1st order reflection band, and the second 2nd order reflection band. In some cases, the single wide reflection band can include a first 2nd order reflection band of the first stack. In some cases, the first and second stacks may have apodized portions which monotonically deviate from respective baseline portions.

Abstract translation: 宽带镜，偏振器或其他反射器包括单独的微层堆叠。 每个堆叠中的微层被布置成光学重复单元，并且堆叠被串联布置。 在诸如法向入射的设计入射角下，第二堆叠提供第二第一级反射带和不同的第二二级反射带，其间具有第二光谱通过带。 第一叠层提供填充第二光谱通带的第一第一级反射带，使得形成包括第一第一级反射带，第二第一级反射带和第二二级反射带的单个宽反射带。 在一些情况下，单个宽反射带可以包括第一叠层的第一二阶反射带。 在一些情况下，第一和第二堆叠可以具有与各个基准部分单调偏离的变迹部分。

公开(公告)号：US09488766B2

公开(公告)日：2016-11-08

申请号：US14942648

申请日：2015-11-16

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Michael F. Weber ,  Carl A. Stover

IPC: G02B5/30 ,  G02B5/28 ,  G02B27/14 ,  B29C47/00 ,  B29D11/00 ,  B32B7/02 ,  G02B27/28

CPC classification number: G02B5/3066 ,  B29C47/0021 ,  B29C47/0057 ,  B29D11/0073 ,  B32B7/02 ,  G02B5/285 ,  G02B5/3041 ,  G02B5/305 ,  G02B27/141 ,  G02B27/142 ,  G02B27/144 ,  G02B27/283 ,  Y10T156/10

Abstract: A multilayer optical film body includes a first and second packet of microlayers. Each packet partially transmits and partially reflects light over an extended wavelength range, such as the visible region, for normally incident light polarized along a first principal axis of the film body. In combination, the first and second packets have an intermediate reflection and transmission (e.g. 5-95% internal transmission, on average) for the normally incident light, and similar intermediate reflection/transmission (e.g. 10-90% internal transmission, on average) for oblique light. The packets are laminated or otherwise connected so that light can pass through the packets sequentially. In at least a first test area of the film body, a high frequency spectral variability of the combination of packets is less than a high frequency spectral variability of the first packet by itself, and may also be less than a high frequency spectral variability of the second packet by itself.

公开(公告)号：US20160077266A1

公开(公告)日：2016-03-17

申请号：US14942648

申请日：2015-11-16

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Michael F. Weber ,  Carl A. Stover

IPC: G02B5/30 ,  G02B27/28

CPC classification number: G02B5/3066 ,  B29C47/0021 ,  B29C47/0057 ,  B29D11/0073 ,  B32B7/02 ,  G02B5/285 ,  G02B5/3041 ,  G02B5/305 ,  G02B27/141 ,  G02B27/142 ,  G02B27/144 ,  G02B27/283 ,  Y10T156/10

Abstract: A multilayer optical film body includes a first and second packet of microlayers. Each packet partially transmits and partially reflects light over an extended wavelength range, such as the visible region, for normally incident light polarized along a first principal axis of the film body. In combination, the first and second packets have an intermediate reflection and transmission (e.g. 5-95% internal transmission, on average) for the normally incident light, and similar intermediate reflection/transmission (e.g. 10-90% internal transmission, on average) for oblique light. The packets are laminated or otherwise connected so that light can pass through the packets sequentially. In at least a first test area of the film body, a high frequency spectral variability of the combination of packets is less than a high frequency spectral variability of the first packet by itself, and may also be less than a high frequency spectral variability of the second packet by itself.

公开(公告)号：US20140313572A1

公开(公告)日：2014-10-23

申请号：US13866853

申请日：2013-04-19

Applicant: 3M Innovative Properties Company

Inventor： Edward J. Kivel ,  Timothy J. Nevitt ,  Michael F. Weber

IPC: G02B5/20

CPC classification number: G02B5/0816 ,  G02B5/0841 ,  G02B5/26 ,  G02B5/281 ,  G02B5/287 ,  G02B5/3041

Abstract: A broadband mirror, polarizer, or other reflector includes at least one stack of microlayers. Microlayers in the stack are arranged into optical repeat units. At a design angle of incidence such as normal incidence, the stack provides a 1st order reflection band, a 2nd order reflection band, and optionally a 3rd order reflection band. The 2nd order reflection band overlaps, or substantially overlaps, the 1st and/or 3rd order reflection bands to form a single wide reflection band. The wide reflection band may include the 2nd and 1st but not a 3rd order reflection band, or the 2nd and 3rd but not the 1st order reflection band, or it may include the 1st, 2nd, and 3rd order reflection bands, as well as still higher order reflection bands. The wide reflection band may cover at least a portion of visible and infrared wavelengths.

Abstract translation: 宽带镜，偏振器或其它反射器包括至少一个微层叠。 堆叠中的微层被布置成光学重复单元。 在诸如法向入射的设计入射角下，叠层提供一阶反射带，二阶反射带和任选的三阶反射带。 第二级反射波段与第一和/或三级反射波段重叠或基本重叠，形成单个宽反射波段。 宽反射带可以包括第2和第1反射带，或者第二和第三反射带，或者第二和第三反射带，或者可以包括第一，第二和第三阶反射带，以及静止 高阶反射带。 宽反射带可以覆盖可见光和红外波长的至少一部分。

公开(公告)号：US20140268346A1

公开(公告)日：2014-09-18

申请号：US14352883

申请日：2012-10-17

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Michael F. Weber ,  Timothy J. Nevitt ,  John A. Wheatley

IPC: G02B5/28 ,  G02B5/30

CPC classification number: G02B5/0841 ,  G02B5/281 ,  G02B5/285 ,  G02B5/287 ,  G02B5/3041 ,  G02B5/305 ,  G02B27/142

Abstract: A broadband partial reflector includes a first multilayer polymeric optical film having a total number of optical repeating units from a first side to a second side of the first multilayer polymeric optical film and a second multilayer polymeric optical film having a total number of optical repeating units from a first side to a second side of the second multilayer polymeric optical film and an intermediate layer on the second side of the multilayer polymeric optical film separates the first multilayer polymeric optical film from the second multilayer polymeric optical film. The first multilayer polymeric optical film has a first baseline optical repeating unit thickness profile and a first apodized optical repeating unit thickness profile monotonically deviating from the first baseline optical repeating unit thickness profile and defining the second side of the first multilayer polymeric optical film. The second multilayer polymeric optical film has a second baseline optical repeating unit thickness profile and a second apodized optical repeating unit thickness profile monotonically deviating from the second baseline optical repeating unit thickness profile and defining the first side of the second multilayer polymeric optical film.

Abstract translation: 宽带部分反射器包括具有从第一多层聚合物光学膜的第一侧到第二侧的总数目的光学重复单元的第一多层聚合物光学膜和第二多层聚合物光学膜，其具有来自 所述第二多层聚合物光学膜的第一侧至第二侧，并且所述多层聚合物光学膜的第二侧上的中间层将所述第一多层聚合物光学膜与所述第二多层聚合物光学膜分离。 第一多层聚合物光学膜具有第一基线光学重复单元厚度分布和第一变迹的光学重复单元厚度分布单调地偏离第一基线光学重复单元厚度分布并且限定第一多层聚合物光学薄膜的第二侧。 第二多层聚合物光学膜具有第二基线光学重复单元厚度轮廓和第二变迹的光学重复单元厚度轮廓单调地偏离第二基线光学重复单元厚度轮廓并且限定第二多层聚合物光学膜的第一侧。

公开(公告)号：US20140009963A1

公开(公告)日：2014-01-09

申请号：US13938016

申请日：2013-07-09

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Timothy J. Nevitt ,  Timothy J. Hebrink ,  Michael F. Weber ,  Rolf W. Biernath ,  David G. Freier ,  John A. Wheatley ,  Andrew J. Ouderkirk ,  Charles D. Hoyle ,  Kristopher J. Derks

IPC: F21V7/04

CPC classification number: F21V7/04 ,  G02B6/0055 ,  G02B6/0056 ,  G02B6/0068 ,  G02B6/0096 ,  G02F1/133603 ,  G02F1/133605 ,  G02F1/13362

Abstract: A front and back reflector are arranged to form a hollow light recycling cavity having an output region, and one or more light sources (e.g. LEDs) are disposed to emit light into the cavity. In one aspect, the back reflector has a design characterized by a first and second parameter. The first design parameter is a ratio of the collective emitting area of the light sources Aemit to the area of the output region Aout, and Aemit/Aout is preferably from 0.0001 to 0.1. The second design parameter is SEP/H, where H is the depth of the recycling cavity, and SEP is an average plan view source separation associated with the light sources. Other aspects of the disclosed extended area light sources are also described.

Abstract translation: 前后反射器被布置成形成具有输出区域的中空光循环腔，并且设置一个或多个光源（例如LED）以将光发射到空腔中。 在一个方面，后反射器具有以第一和第二参数为特征的设计。 第一设计参数是光源Aemit的总发光面积与输出区域Aout的面积的比，Aemit / Aout优选为0.0001〜0.1。 第二个设计参数是SEP / H，其中H是回收腔的深度，SEP是与光源相关的平均平面视图源分离。 还描述了所公开的扩展区域光源的其他方面。

公开(公告)号：US20240377567A1

公开(公告)日：2024-11-14

申请号：US18777934

申请日：2024-07-19

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Adam D. Haag ,  Timothy J. Nevitt ,  Michael F. Weber ,  Robert D. Taylor ,  Carl A. Stover

IPC: G02B5/30

Abstract: Polarizer stacks are described. More particularly, polarizer stacks that include an absorbing polarizer and multiple reflective polarizers, including at least one collimating reflective polarizer are described. Such polarizer stacks are capable of emitted light that is both collimated and color neutral. Backlights incorporating such polarizer stacks are also described.