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公开(公告)号：US20150293272A1
公开(公告)日：2015-10-15
申请号：US14443407
申请日：2013-11-19
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Tri D. Pham , Steven H. Kong , Haiyan Zhang , Joseph T. Aronson , Michael R. Leaf , Gary T. Boyd , Nicholas A. Johnson , Qingbing Wang
CPC classification number: G02B5/021 , B29C59/026 , B29L2011/00 , C25D3/04 , C25D3/38 , C25D5/12 , C25D5/16 , G02B5/0221 , G02B5/0268 , G02B5/0278 , G02B6/0051 , G02F1/133606
Abstract: Optical diffusing films are made by microreplication from a structured surface tool. The tool is made using a 2-part electroplating process, wherein a first electroplating procedure forms a first metal layer with a first major surface, and a second electroplating procedure forms a second metal layer on the first metal layer, the second metal layer having a second major surface with a smaller average roughness than that of the first major surface. The second major surface can function as the structured surface of the tool. A replica of this surface can then be made in a major surface of an optical film to provide light diffusing properties. The structured surface and/or its constituent structures can be characterized in terms of various parameters such as optical haze, optical clarity, Fourier power spectra of the topography along orthogonal in-plane directions, ridge length per unit area, equivalent circular diameter (ECD), and/or aspect ratio.
Abstract translation: 光学漫射膜通过微结构化表面工具进行制造。 该工具使用2部分电镀工艺制成，其中第一电镀工艺形成具有第一主表面的第一金属层，第二电镀工艺在第一金属层上形成第二金属层，第二金属层具有 平均粗糙度小于第一主表面的第二主表面。 第二个主表面可以作为工具的结构化表面。 然后可以在光学膜的主表面上制造该表面的复制品以提供光漫射性质。 结构化表面和/或其组成结构可以根据各种参数来表征，例如光学雾度，光学透明度，沿垂直面内方向的形貌的傅里叶功率谱，每单位面积的脊长度，等效圆直径（ECD） ，和/或纵横比。
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公开(公告)号：US20140313587A1
公开(公告)日：2014-10-23
申请号：US14186363
申请日：2014-02-21
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Joseph T. Aronson , Slah Jendoubi , Mitchell A.F. Johnson , Scott R. Kaytor , Tri D. Pham , Robert A. Yapel , Joseph A. Zigal , Steven J. McMan , Steven D. Solomonson , Steven Hin-Chung Kong , Fei Lu , Gary T. Boyd
IPC: G02B27/12
CPC classification number: G02B6/0053 , B32B2307/40 , G02B5/02 , G02B5/045 , G02B5/3033 , G02B6/0051 , G02B27/126 , G02F2001/133607
Abstract: Light redirecting film is disclosed. The light redirecting film includes a first major surface that includes a plurality of first microstructures that extend along a first direction. The light redirecting film also includes a second major surface that is opposite to the first major surface and includes a plurality of second microstructures. The second major surface has an optical haze that is not greater than about 3% and an optical clarity that is not greater than about 85%. The light redirecting film has an average effective transmission that is not less than about 1.75.
Abstract translation: 公开了光重定向膜。 光重新定向膜包括第一主表面，其包括沿着第一方向延伸的多个第一微结构。 光重定向膜还包括与第一主表面相对的第二主表面，并且包括多个第二微结构。 第二主表面的光学雾度不大于约3％，光学透明度不大于约85％。 光重定向膜具有不小于约1.75的平均有效透射率。
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公开(公告)号：US20240329415A1
公开(公告)日：2024-10-03
申请号：US18577724
申请日：2022-07-15
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Li Yu , Garth V. Antila , Michael R. Berrigan , Andrew C. Clausen , William T. Fay , Timothy J. Lindquist , Tri D. Pham , Samuel E. Marmon , Zhaohui Yang , Steven H. Kong
CPC classification number: G02B27/0988 , G02B5/003
Abstract: A light control film includes opposing substantially planar substantially parallel first and second major surfaces spaced apart along a thickness direction of the light control film by less than about 500 microns; and a plurality of substantially parallel optically transparent polymeric columns disposed in, and substantially surrounded by, a light absorbing polymeric material. Each of the polymeric columns has a first column end at the first major surface and an opposite second column end at the second major surface and has an aspect ratio of greater than about 3, such that the first column ends of at least one pair of adjacent polymeric columns include substantially parallel substantially straight sides facing, and substantially coextensive with, each other.
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公开(公告)号：US20240276851A1
公开(公告)日：2024-08-15
申请号：US18643225
申请日：2024-04-23
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Tao Liu , Gary T. Boyd , Daniel J. Schmidt , Caleb T. Nelson , Owen M. Anderson , Tri D. Pham , Encai Hao , Shu-Ching Fan
CPC classification number: H10K59/879 , G02B3/08
Abstract: An optical system includes an optical film curved about a first axis and a light control film curved about the first axis. The light control film can be disposed between a light source and the optical film. The optical film includes a microstructured first major surface and an opposing second major surface. The microstructured first major surface defines a linear Fresnel lens including a plurality of Fresnel elements extending longitudinally along the first axis. The first major surface of the optical film faces the light control film. The light control film can include a plurality of alternating optically transmissive and optically absorptive regions extending longitudinally along the first axis such that in a cross-section orthogonal to the first axis, for at least a majority of the optically transmissive regions, a centerline between adjacent optically absorptive regions is substantially normal to a major surface of the light control film.
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公开(公告)号：US20240256088A1
公开(公告)日：2024-08-01
申请号：US18604764
申请日：2024-03-14
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Bharat R. Acharya , Robert D. Taylor , Joseph P. Attard , Benjamin J. Forsythe , David T. Yust , Matthew E. Sousa , Jason S. Petaja , Anthony M. Renstrom , William Blake Kolb , Matthew S. Cole , Matthew S. Stay , Matthew R.D. Smith , Jeremy O. Swanson , Tri D. Pham , David A. Rosen , Qunyi Chen , Lisa A. DeNicola , Quinn D. Sanford , Carl A. Stover , Lin Zhao , Gilles J. Benoit
CPC classification number: G06F3/0421 , G02B5/0226 , G02B5/305 , G02B6/0051
Abstract: A display system for sensing a finger of a user applied to the display system includes a display panel; a sensor for sensing the finger; a sensing light source configured to emit a first light having a first wavelength W1; and a reflective polarizer disposed between the display panel and the sensor. For a substantially normally incident light, an optical transmittance of the reflective polarizer versus wavelength for a first polarization state has a band edge such that for a first wavelength range extending from a smaller wavelength L1 to a greater wavelength L2 and including W1, where 30 nm≤L2−L1≤50 nm and L1 is greater than and within about 20 nm of a wavelength L3 corresponding to an optical transmittance of about 50% along the band edge, the optical transmittance has an average of greater than about 75%.
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Patent Agency Ranking
公开(公告)号：US12004410B2
公开(公告)日：2024-06-04
申请号：US17768421
申请日：2020-10-29
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Tao Liu , Gary T. Boyd , Daniel J. Schmidt , Caleb T. Nelson , Owen M. Anderson , Tri D. Pham , Encai Hao , Shu-Ching Fan
CPC classification number: H10K59/879 , G02B3/08
Abstract: An optical system includes a light source, an optical film curved about a first axis, and a light control film curved about the first axis and disposed between the light source and the optical film. The optical film includes a microstructured first major surface and an opposing second major surface. The microstructured first major surface defines a linear Fresnel lens including a plurality of Fresnel elements extending longitudinally along the first axis. The first major surface of the optical film faces the light control film. The light control film includes a plurality of alternating optically transmissive and optically absorptive regions extending longitudinally along the first axis such that in a cross-section orthogonal to the first axis, for at least a majority of the optically transmissive regions, a centerline between adjacent optically absorptive regions is substantially normal to a major surface of the light control film.
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公开(公告)号：US20240096127A1
公开(公告)日：2024-03-21
申请号：US18265586
申请日：2021-11-30
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Neeraj Sharma , Przemyslaw P. Markowicz , Timothy J. Reddy , Mark A. Roehrig , Tri D. Pham , Zhaohui Yang
CPC classification number: G06V40/1318 , G02B5/223
Abstract: Various embodiments of an optical construction and an electronic device that includes such optical construction are disclosed. The optical construction includes a lens film having an outermost structured first major surface and an opposing outermost substantially planar second major surface. The structured first major surface includes a plurality of microlenses. The optical construction further includes a mask disposed adjacent to the second major surface of the lens film, where the mask includes a polymeric layer, a nanoparticle layer, and plurality of laser-ablated openings disposed through the mask. The openings are aligned to the microlenses in a one-to-one correspondence.
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公开(公告)号：US11885999B2
公开(公告)日：2024-01-30
申请号：US17996676
申请日：2021-05-04
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Bharat R. Acharya , Robert D. Taylor , Joseph P. Attard , Benjamin J. Forsythe , David T. Yust , Matthew E. Sousa , Jason S. Petaja , Anthony M. Renstrom , William Blake Kolb , Matthew S. Cole , Matthew S. Stay , Matthew R.D. Smith , Jeremy O. Swanson , Tri D. Pham , David A. Rosen , Qunyi Chen , Lisa A. DeNicola , Quinn D. Sanford , Carl A. Stover , Lin Zhao , Gilles J. Benoit
CPC classification number: G02B6/0056 , G02B6/0051 , G06V40/1318
Abstract: An optical construction includes a reflective polarizer and an optically diffusive film disposed on the reflective polarizer. The reflective polarizer includes an outer layer including a plurality of first particles partially protruding from a first major surface thereof to form a structured major surface. A first optically diffusive layer is conformably disposed on the structured major surface. The optically diffusive film includes a second optically diffusive layer including a plurality of nanoparticles dispersed therein, and a structured layer including a structured major surface. For a substantially normally incident light and a visible wavelength range from about 450 nm to about 650 nm and an infrared wavelength range from about 930 nm to about 970 nm, the second optically diffusive layer has an average specular transmittance Vs in the visible wavelength range and an average specular transmittance Is in the infrared wavelength range, where Is/Vs≥2.5.
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公开(公告)号：US20230333289A1
公开(公告)日：2023-10-19
申请号：US18024946
申请日：2021-08-13
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Stephen P. Maki , Zhaohui Yang , Przemyslaw P. Markowicz , Mark A. Roehrig , Tri D. Pham , Serena L. Mollenhauer , David A. Rosen , Yang Liu
CPC classification number: G02B3/0056 , G02B5/003 , G02F1/13338
Abstract: An optical construction can include a lens layer including microlenses formed on a substrate and at least one light absorbing optical cavity disposed on a substrate side of the lens layer. Each light absorbing optical cavity has an average thickness of less than about 300 nm and includes an optically transparent middle layer disposed between light absorbing first and second end layers. Each of the first and second end layers, but not the middle layer, defines a plurality of through openings therein aligned in a one-to-one correspondence with the microlenses. The optical construction can include an optically transparent spacer layer disposed between two light absorbing optical cavities. An optical system includes the optical construction and a refractive component including at least one prism film.
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公开(公告)号：US20230280512A1
公开(公告)日：2023-09-07
申请号：US18171748
申请日：2023-02-21
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Joseph P. Attard , Kristy A. Gillette , Tri D. Pham , Zhaohui Yang
CPC classification number: G02B5/201 , G02B3/0075
Abstract: An optical construction includes a lens layer having a structured first major surface including a plurality of microlenses; an optical filter disposed on the lens layer; an optically opaque mask layer disposed between the lens layer and the optical filter and defining a plurality of openings therein; and a low index layer disposed on the optical filter. For a first wavelength in a visible wavelength range, a second wavelength that can be in an infrared wavelength range, the optical filter has: an optical transmission of greater than about 50% for the first wavelength for each of a first incident angle of less than about 10 degrees and a second incident angle of greater than about 30 degrees, and for the second wavelength, an optical transmission of less than about 15% for the first incident angle and of greater than about 30% for the second incident angle.
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