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公开(公告)号：US20240151880A1
公开(公告)日：2024-05-09
申请号：US17768399
申请日：2020-11-04
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Tao Liu , Tri D. Pham , Gary T. Boyd , Daniel J. Schmidt , Caleb T. Nelson , Owen M. Anderson
Abstract: An optical film includes a structured film and a light control film formed on the structured film. The structured film includes a substrate and a plurality of polymeric microstructures formed on a major surface of the substrate. Each microstructure includes an optical facet and a sidewall meeting the optical facet at a ridge of the microstructure. The light control film includes an optically transparent material disposed on and covering the plurality of polymeric microstructures, and a plurality of optically absorptive louvers formed in the optically transparent material opposite the structured film. The louvers extend along a longitudinal direction and are spaced apart along an orthogonal transverse direction. The louvers have an average depth D into the optically transparent material and have an average width W in the transverse direction. D/W can be greater than 2. The optical film is integrally formed.
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公开(公告)号：US20240122043A1
公开(公告)日：2024-04-11
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 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：US11906759B2
公开(公告)日：2024-02-20
申请号：US17056353
申请日：2019-05-20
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Daniel J. Theis , Tri D. Pham , Bradley S. English , Steven J. Botzet , Qingbing Wang , Shu-Ching Fan
CPC classification number: G02B5/003 , B29D11/00788 , B29D11/00798 , G02B5/04
Abstract: An optical film having a first surface, an opposing second surface, and a thickness normal to the first and second surfaces is cut. Cutting the film forms a channel at least partially through the thickness of the film. A light control material is printed proximate to a surface of the film. The ink traverses through the channel by capillary motion.
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公开(公告)号：US20230400606A1
公开(公告)日：2023-12-14
申请号：US18250293
申请日：2021-10-20
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Adam T. Ringberg , Vivian W. Jones , James A. Phipps , Tri D. Pham , Przemyslaw P. Markowicz , Mark A. Roehrig , Stephen P. Maki , Bing Hao , David J. Rowe , Serena L. Mollenhauer , Mikhail A. Belkin , Zhaohui Yang , Jathan D. Edwards
CPC classification number: G02B3/0056 , G02B5/005
Abstract: An optical construction includes a lens layer and optically opaque first and second mask layers. The lens layer has a first major surface including a plurality of microlenses arranged along orthogonal first and second directions. The first and second mask layers are spaced apart from the first major surface and define respective pluralities of through first and second openings therein arranged along the first and second directions. The first mask layer is disposed between the structured first major surface and the second mask layer. There is a one-to-one correspondence between the microlenses and the first and second openings. The optical construction includes an intermediate layer disposed between the structured first major surface and the first mask layer and including an undulating second major surface facing, and in substantial registration with, an undulating third major surface of first mask layer so as to define a substantially uniform spacing therebetween.
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公开(公告)号：US20230228918A1
公开(公告)日：2023-07-20
申请号：US17923269
申请日：2021-04-26
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Tri D. Pham , David A. Rosen , Qunyi Chen , Lisa A. DeNicola , Quinn D. Sanford , Matthew S. Cole , Bharat R. Acharya , Matthew E. Sousa , Robert D. Taylor , Benjamin J. Forsythe
IPC: G02B5/02
CPC classification number: G02B5/021 , G02B5/0268 , G02B5/0284 , G02B5/0294
Abstract: An optically diffusive film includes an optical substrate layer with opposing first and second major surfaces; and an optical layer disposed on the second major surface of the optical substrate layer and including a structured major surface having a plurality of spaced apart elongated structures elongated along a same first direction and arranged at a substantially uniform density, each elongated structure including a peak such that, in a plane of a cross-section of the elongated structure that is parallel to the first direction and comprises the peak, the elongated structure has a substantially flat top region; wherein for substantially normally incident light and a visible wavelength range and an infrared wavelength range, the optical substrate layer has an average total transmittance or reflectance of greater than about 60% in the visible wavelength range and an average specular transmittance of greater than about 60% in the infrared wavelength range.
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Patent Agency Ranking
公开(公告)号：US11294106B2
公开(公告)日：2022-04-05
申请号：US16076004
申请日：2017-02-10
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Tri D. Pham , Qingbing Wang , Daniel J. Theis , Encai Hao , Keith R. Bruesewitz
Abstract: A unitary optical film stack comprising a light redirecting film assembly; a light diffusion film assembly; and an optical adhesive; wherein the light redirecting film assembly and the light diffusion film assembly are physically coupled non-continuously to minimize optical coupling.
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公开(公告)号：US20180217300A1
公开(公告)日：2018-08-02
申请号：US15568832
申请日：2016-04-14
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Gary T. Boyd , Tri D. Pham , Nicholas A. Johnson , Oanh V. Pham , Sara S. Merritt , Stephen J. Etzkorn , Haiyan Zhang , Corey D. Balts , Joseph T. Aronson
Abstract: A diffuser including opposing structured first and second major surfaces is described. The first major surface includes a first plurality of surface structures providing a uniform first haze. The second major surface includes a first portion adjacent an edge and a second portion adjacent the first portion. The first portion includes a first region and a second region between the first region and the second portion. The second major surface includes a second plurality of surface structures providing a uniform second haze over the second portion and providing a third haze in the first portion. The third haze in the first region is higher than the second haze, and the third haze in the second region is monotonically decreasing. The second portion has a surface area of at least 90 percent of a surface area of the second major surface.
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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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