公开(公告)号：US20210382222A1

公开(公告)日：2021-12-09

申请号：US17407521

申请日：2021-08-20

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Kenneth A. EPSTEIN ,  Nicholas A. JOHNSON ,  Robert M. EMMONS

IPC: F21V8/00

Abstract: Optical system including a lightguide; a turning film, including a first smooth surface perpendicular to a display axis and a first structured surface including a plurality of first microstructures defining a first plurality of parallel grooves, where the turning film is optically coupled to the lightguide, where the turning film outputs light collimated in a first plane parallel to the display axis; and a lenticular diffuser, including a second smooth surface perpendicular to the display axis and a second structured surface comprising a plurality of second microstructures defining a second plurality of parallel grooves extending along a plane perpendicular to the display axis, where the lenticular diffuser is optically coupled to the turning film, where the lenticular diffuser reflects or refracts collimated light toward a second plane perpendicular to the first plane; where the first plurality of parallel grooves is perpendicular to the second plurality of parallel grooves.

公开(公告)号：US20180246266A1

公开(公告)日：2018-08-30

申请号：US15755198

申请日：2016-08-25

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Kenneth A. EPSTEIN ,  John A. WHEATLEY

IPC: F21V8/00

CPC classification number: G02B6/002 ,  F21V7/0091 ,  F21V13/02 ,  F21V14/00 ,  F21Y2103/33 ,  G02B6/00 ,  G02B6/0036 ,  G02B6/0078

Abstract: A light guide includes a light input surface, a first major surface orthogonal to the light input surface and a second major surface opposing the first major surface and forming a converging wedge with the first major surface. The second surface includes a plurality of doublet light extraction features closely-packed or separated by a land feature. Each doublet feature includes a first prism feature having a first shape and a second prism feature having a second shape and the second shape is different than the first shape.

公开(公告)号：US20190339438A1

公开(公告)日：2019-11-07

申请号：US16475327

申请日：2018-01-03

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Kenneth A. EPSTEIN ,  Nicholas A. JOHNSON ,  Robert M. EMMONS

IPC: F21V8/00

Abstract: Optical system including a lightguide; a turning film, including a first smooth surface perpendicular to a display axis and a first structured surface including a plurality of first microstructures defining a first plurality of parallel grooves, where the turning film is optically coupled to the lightguide, where the turning film outputs light collimated in a first plane parallel to the display axis; and a lenticular diffuser, including a second smooth surface perpendicular to the display axis and a second structured surface comprising a plurality of second microstructures defining a second plurality of parallel grooves extending along a plane perpendicular to the display axis, where the lenticular diffuser is optically coupled to the turning film, where the lenticular diffuser reflects or refracts collimated light toward a second plane perpendicular to the first plane; where the first plurality of parallel grooves is perpendicular to the second plurality of parallel grooves.

公开(公告)号：US20190339427A1

公开(公告)日：2019-11-07

申请号：US16475186

申请日：2018-01-03

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Robert M. EMMONS ,  Kenneth A. EPSTEIN

IPC: G02B5/04 ,  G02B5/02 ,  F21V8/00 ,  F21V5/02

Abstract: An optical system including a light guide and a turning film that includes a first major surface, where the first major surface is substantially smooth and a second major surface including a plurality of asymmetric microstructures each respective asymmetric microstructure including a first side, where the first side is substantially planar, and a second side including a first surface segment defining a substantially planar surface and a second surface segment defining a non-planar surface.

公开(公告)号：US20180267228A1

公开(公告)日：2018-09-20

申请号：US15755172

申请日：2016-08-24

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Kenneth A. EPSTEIN ,  John A. WHEATLEY ,  Tao LIU

IPC: F21V8/00

Abstract: A light guide includes a light input surface, a first major surface orthogonal to the light input surface, a second major surface opposing the first major, a plurality of discrete light extraction features disposed on the second major surface and a plurality of closely packed prisms disposed along the second major surface. The plurality of discrete light extraction features separate the plurality of closely packed prisms from the second major surface. Each of the closely packed prisms include a first prism surface forming a first angle with the second surface in a range from 80 to 100 degrees or in a range from 85 to 95 degrees or in a range from 87 to 93 degrees.

公开(公告)号：US20160320525A1

公开(公告)日：2016-11-03

申请号：US15105607

申请日：2014-12-08

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Scott E. BRIGHAM ,  Kenneth A. EPSTEIN ,  Kiran S KANUKURTHY ,  John C. SCHULTZ ,  Philip E WATSON

IPC: G01V8/20 ,  G09F27/00

CPC classification number: G01V8/20 ,  G06Q30/02 ,  G09F27/00 ,  G09F2027/001 ,  Y04S50/14

Abstract: A sensor comprising a thin film photovoltaic pixel is fitted with optics to provide a field-of-view for the sensing of persons, or other objects, entering or exiting said field-of-view. When a person enters the field-of-view, a processor may sense such entry, then provide signals to other electronic apparatus indicative of such an event.

Abstract translation: 包括薄膜光伏像素的传感器装配有光学器件以提供用于感测人或其他物体进入或退出所述视场的视场。 当人进入视场时，处理器可以感测这样的输入，然后向指示这种事件的其他电子设备提供信号。

公开(公告)号：US20210333624A1

公开(公告)日：2021-10-28

申请号：US17264512

申请日：2019-07-30

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

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

IPC: G02F1/1335 ,  G02B5/00 ,  G02B5/30

Abstract: A light control film comprises 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 the absorptive regions comprise a core having a first concentration, C1, of a light absorbing material sandwiched between cladding layers having a second concentration, C2, of the light absorbing material, wherein C2

公开(公告)号：US20200057343A1

公开(公告)日：2020-02-20

申请号：US16346647

申请日：2017-11-02

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Kenneth A. EPSTEIN ,  Nicholas A. JOHNSON ,  Michael E. LAUTERS ,  Shannon L. SIEFKEN ,  Gary T. BOYD

IPC: G02F1/1335 ,  G02B5/04 ,  F21V5/08 ,  G02F1/13

Abstract: The disclosure describes asymmetric turning films (ATFs) that may be used in conjunction with multiple light sources in a liquid crystal display assembly to provide multiple different characteristic output distributions of light. In some examples, the ATFs include a structured surface defining a plurality of microstructures having two or more faces with each face configured to reflect light in different directions. The microstructure may define a microstructure axis and an angle gradient characterizing the rotation of the microstructure axis across the structured surface of the ATF.

公开(公告)号：US20150325816A1

公开(公告)日：2015-11-12

申请号：US14648181

申请日：2013-11-21

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Adam D. HAAG ,  Ghidewon AREFE ,  Kenneth A. EPSTEIN ,  Nathaniel K. NAISMITH ,  Seong Taek LEE ,  Sergey LAMANSKY ,  William A. TOLBERT

IPC: H01L51/52 ,  G02B5/30 ,  G02B27/28

CPC classification number: H01L51/5293 ,  G02B5/3041 ,  G02B5/3083 ,  G02B27/281 ,  G02B27/286 ,  H01L51/5268 ,  H01L51/5271 ,  H01L51/5275 ,  H01L51/5281 ,  H05B33/22

Abstract: An emissive display includes an OLED, a linear polarizer, a reflective polarizer optically between the OLED and the linear polarizer, and a structured optical film optically between the OLED and the reflective polarizer.

Abstract translation: 发光显示器包括OLED，线性偏振器，在OLED和线性偏振器之间光学反射偏振器，以及在OLED和反射偏振器之间的光学上的结构化光学膜。

公开(公告)号：US20150325813A1

公开(公告)日：2015-11-12

申请号：US14648518

申请日：2013-11-21

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Adam D. HAAG ,  Ghidewon AREFE ,  Kenneth A. EPSTEIN ,  Nathaniel K. NAISMITH ,  Seong Taek LEE ,  Sergey LAMANSKY ,  William A. TOLBERT

IPC: H01L51/52 ,  H01L27/32

CPC classification number: H01L51/5281 ,  G02B27/281 ,  H01L27/3244 ,  H01L51/5268 ,  H01L51/5271 ,  H01L51/5275

Abstract: An emissive display comprising an OLED, a first birefringent reflective polarizer, a second birefringent reflective polarizer optically between the OLED and the first birefringent reflective polarizer, a first linear absorbing polarizer having a contrast ratio of less than 100:1 optically between the first birefringent reflective polarizer and the second birefringent reflective polarizer, a second linear absorbing polarizer having a contrast ratio of less than 100:1, where the first birefringent reflective polarizer is optically between the second linear absorbing polarizer and the first linear absorbing polarizer, and a structured optical film optically between the OLED and the second birefringent reflective polarizer.

Abstract translation: 一种发光显示器，包括OLED，第一双折射反射偏振器，在OLED和第一双折射反射型偏振器之间光学上的第二双折射反射偏振器，在第一双折射反射型光学器件之间光学地具有小于100:1的对比度的第一线性吸收偏振器 偏振器和第二双折射反射型偏振器，具有小于100:1的对比度的第二线性吸收偏振器，其中第一双折射反射偏振器在光学上位于第二线性吸收偏振片和第一线性吸收偏振片之间，并且结构化光学膜 光学地在OLED和第二双折射反射偏振器之间。