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公开(公告)号：US20240192544A1
公开(公告)日：2024-06-13
申请号：US18444975
申请日：2024-02-19
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
CPC classification number: G02F1/133524 , G02B5/003 , G02B5/305 , G02B2207/123
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
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公开(公告)号：US11550183B2
公开(公告)日：2023-01-10
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
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公开(公告)号：US11448814B2
公开(公告)日：2022-09-20
申请号：US17309605
申请日：2019-12-18
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Robert M. Emmons , Kenneth A. Epstein , Nicholas A. Johnson
IPC: F21V8/00 , G02B5/02 , G02B5/04 , G02F1/13357
Abstract: An optical system comprises a turning film and a lenticular diffuser. The lenticular diffuser comprises a structured surface comprising a plurality of microstructures comprises a plurality of lenticular prisms separated by substantially flat land areas, the lenticular prisms having a rounded tip and two sides comprising a linear base section and a linear tip section connected by a polynomial blend section.
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公开(公告)号：US11300716B2
公开(公告)日：2022-04-12
申请号：US16486313
申请日：2017-09-27
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： John A. Wheatley , Michael A. McCoy , Tien Yi T. H. Whiting , Guanglei Du , Neeraj Sharma , Kui Chen-Ho , Kenneth A. Epstein
Abstract: Retroreflecting articles are described. In particular, retroreflecting articles including a quarter wave retarder and a retroreflecting layer are described. The retarder is rotationally invariant and the retroreflecting layer is non-depolarizing. Such articles may be useful for sensor-detectable signs, labels, and garments.
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公开(公告)号：US11099314B2
公开(公告)日：2021-08-24
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.
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Patent Agency Ranking
公开(公告)号：US10955592B2
公开(公告)日：2021-03-23
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: G02B5/04 , F21V5/08 , G02F1/13 , G02F1/13357
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.
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公开(公告)号：US10809445B2
公开(公告)日：2020-10-20
申请号：US16475441
申请日：2018-01-03
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Nicholas A. Johnson , Richard V. Pallarino , Kenneth A. Epstein , Michael E. Lauters
Abstract: A light control film and display assemblies that includes such a film. The light control film including a substrate defining first and second major surfaces with the first major surface including a plurality louvers spanning in a first direction substantially perpendicular to a normal of the first major surface, and with the second major surface comprises a plurality of linear microstructures spanning in the first direction. In some examples, each louver of the plurality of louvers substantially aligns with a corresponding microstructure of the plurality of microstructures.
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公开(公告)号：US10732344B2
公开(公告)日：2020-08-04
申请号：US15755172
申请日：2016-08-24
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Kenneth A. Epstein , John A. Wheatley , Tao Liu
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.
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公开(公告)号：US20170175976A1
公开(公告)日：2017-06-22
申请号：US15300707
申请日：2015-03-27
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Nicholas A. Johnson , Gilles J. Benoit , John A. Wheatley , Kenneth A. Epstein , David Scott Thompson , Michael E. Lauters
CPC classification number: F21V5/08 , F21V5/002 , F21V9/14 , G02B5/0231 , G02B5/0278 , G02B5/045 , G02B6/0053 , G02B6/0068 , G02B19/0028 , G02B19/0047
Abstract: Optical systems are disclosed. More particularly, optical systems including an asymmetric turning film (110) with at least a first (120) and second light source (130) are disclosed. Selection of geometries for the asymmetric turning film can enable different output viewing angles depending on the selective illumination of the first light source, the second light source, or both. The optical systems disclosed may be suitable in both luminaires and displays.
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公开(公告)号：US11940689B2
公开(公告)日：2024-03-26
申请号：US18064644
申请日：2022-12-12
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
CPC classification number: G02F1/133524 , G02B5/003 , G02B5/305 , G02B2207/123
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
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