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公开(公告)号：US12201005B2
公开(公告)日：2025-01-14
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
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：US12164120B2
公开(公告)日：2024-12-10
申请号：US16467221
申请日：2018-01-08
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Kristopher J. Derks , Tri D. Pham , Kenneth A. Epstein , David J. Lamb
IPC: G02B5/02
Abstract: An optical film (210) includes a microstructured surface (211) comprising a plurality of prismatic structures (230), the microstructured surface (211) defining a reference plane (241-242) and a thickness direction (243) perpendicular to the reference plane; wherein the plurality of prismatic structures includes a plurality of facets (231), each facet having a facet normal direction forming a polar angle with respect to the thickness direction and an azimuthal angle along the reference plane, and wherein the microstructured surface has a surface azimuthal distribution of the plurality of facets that is substantially uniform, and wherein the microstructured surface has a surface polar distribution of the plurality of facets that has an off-axis peak polar distribution.
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33.发明授权公开(公告)号：US11998947B2
公开(公告)日：2024-06-04
申请号：US17250318
申请日：2019-07-18
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Mark B. O'Neill , Gary E. Gaides , Tri D. Pham , Aaron K. Nienaber , Ronald D. Jesme , Joseph B. Eckel , Shawn C. Dodds , Bert T. Chien
IPC: B05D3/00 , B05D3/06 , B05D5/06 , G02B5/00 , H01L31/054 , H01L31/048 , H02S20/25
CPC classification number: B05D3/203 , B05D5/061 , G02B5/003 , H01L31/054 , H01L31/0549 , B05D3/067 , B05D3/20 , B05D5/06 , G02B2207/123 , H01L31/0488 , H02S20/25
Abstract: A method of making an optical film for control of light includes positioning a first mixture on a substrate, wherein the first mixture includes a first plurality of magnetizable particles dispersed in a first resin, assembling the first plurality of magnetizable particles into a desired structure for the control of the light by rotating modulation of at least a first magnetic field relative to the first plurality of magnetizable particles, and vitrifying the first resin while the first plurality of magnetizable particles are in the desired structure.
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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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Patent Agency Ranking
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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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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