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公开(公告)号：US12216298B2
公开(公告)日：2025-02-04
申请号：US17302662
申请日：2021-05-10
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： John A. Wheatley , Guanglei Du , David T. Yust , Neeraj Sharma , Gilles J. Benoit , Ellison G. Kawakami , Anthony M. Renstrom
Abstract: An article includes an optical filter that comprises a wavelength selective reflective layer and at least one wavelength selective absorbing layer. The optical filter has visible transmittance between 400 nm-700 nm of less than about 30% and near infrared transmittance at 830 nm-900 nm greater than about 30%.
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公开(公告)号：US11953709B2
公开(公告)日：2024-04-09
申请号：US17527837
申请日：2021-11-16
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Guanglei Du , John A. Wheatley , William B. Kolb , John C. Schultz , Daoyun Song , Luke D. Riveness
Abstract: A system may include one or both of a light emitter and a light receiver. The system may include an optical filter adjacent one or both of the light emitter or the light receiver. The optical filter includes a wavelength selective scattering layer. The wavelength selective scattering layer may have a near-infrared scattering ratio of less than about 0.9. The filter may have a visible reflective haze ratio of greater than about 0.5. A method may include disposing the wavelength selective scattering layer adjacent one or both of the light emitter and the light receiver. An article may include the optical filter. The wavelength selective scattering layer may have an average near-infrared scattering of less than 60%, an average visible scattering of greater than 10%, and a difference between the % total visible reflectance and the % diffuse visible reflectance of less than 20.
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公开(公告)号：US11619771B2
公开(公告)日：2023-04-04
申请号：US16652996
申请日：2018-11-06
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Neeraj Sharma , Guanglei Du , John A. Wheatley , Matthew E. Sousa , Jeremy O. Swanson
Abstract: Systems including one or both of a light emitter or a light receiver or a detectable object; and an optical filter adjacent one or both of the light emitter or the light receiver, wherein the optical filter includes at least one wavelength transmission selective layer an absorber component, wherein the wavelength transmission selective layer at least partially reduces the transmission of wavelengths from 701 nm to 849 nm incident thereon.
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公开(公告)号：US11163099B2
公开(公告)日：2021-11-02
申请号：US16349664
申请日：2016-12-01
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： John A. Wheatley , Gilles J. Benoit , Guanglei Du , Steven R. Anderson , Owen M. Anderson , David T. Yust , Rolf W. Biernath , Gary E. Gaides , Brian W. Lueck , Neeraj Sharma
Abstract: A light control film is disclosed that includes a plurality of spaced apart first regions. Each first region has a substantially low transmission in one or two of a first wavelength range from about 300 nm to about 400 nm, a second wavelength range from about 400 nm to about 700 nm, and a third wavelength range from about 700 nm to about 1200 nm, and a substantially high transmission in the remaining wavelength ranges. The light control film has a viewing angle of less than about 70 degrees along a predetermined first direction.
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公开(公告)号：US11054556B2
公开(公告)日：2021-07-06
申请号：US16071720
申请日：2017-01-20
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： John A. Wheatley , Guanglei Du , David T. Yust , Neeraj Sharma , Gilles J. Benoit , Ellison G. Kawakami , Anthony M. Renstrom
Abstract: An article includes an optical filter that comprises a wavelength selective reflective layer and at least one wavelength selective absorbing layer. The optical filter has visible transmittance between 400 nm-700 nm of less than about 30% and near infrared transmittance at 830 nm-900 nm greater than about 30%.
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Patent Agency Ranking
公开(公告)号：US20210021050A1
公开(公告)日：2021-01-21
申请号：US17043432
申请日：2019-04-04
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Jaewon Kim , Stephen J. Etzkorn , Ronald D. Jesme , Dipankar Ghosh , Mohsen Salehi , Guanglei Du , John A. Wheatley
Abstract: Gradient permittivity films are described. In particular, gradient permittivity films including a plurality of layers each having a thickness where at least one layer is perforated and has a different air volume fraction from another of the plurality of layers by at least 0.05. Such films may be useful in improving the signal to noise ratio for transmitting and receiving units operating between 20 GHz and 300 GHz behind a protective cover.
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公开(公告)号：US10711182B2
公开(公告)日：2020-07-14
申请号：US15741525
申请日：2016-06-23
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Adam D. Miller , Daniel E. Isaacson , Bert T. Chien , William B. Kolb , Matthew H. Frey , Guanglei Du
Abstract: A photochromic article is provided, containing a structural component, a fluid in contact with the structural component, and a polyoxometalate complex in contact with the fluid. The polyoxometalate complex includes a counter cation complexed with either a polyoxometalate anion or a polyoxometalate derivative anion. The structural component includes a porous material, a plurality of cavities, or both. The article is photochromic. A method of changing a light transmission of a photochromic article is provided, as is a method of changing a light reflectance of a photochromic article. A method of forming a photochromic article is also provided.
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8.发明申请公开(公告)号：US20180194994A1
公开(公告)日：2018-07-12
申请号：US15741525
申请日：2016-06-23
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Adam D. Miller , Daniel E. Isaacson , Bert T. Chien , William B. Kolb , Matthew H. Frey , Guanglei Du
Abstract: A photochromic article is provided, containing a structural component, a fluid in contact with the structural component, and a polyoxometalate complex in contact with the fluid. The polyoxometalate complex includes a counter cation complexed with either a polyoxometalate anion or a polyoxometalate derivative anion. The structural component includes a porous material, a plurality of cavities, or both. The article is photochromic. A method of changing a light transmission of a photochromic article is provided, as is a method of changing a light reflectance of a photochromic article. A method of forming a photochromic article is also provided.
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公开(公告)号：US09921345B2
公开(公告)日：2018-03-20
申请号：US15301780
申请日：2015-05-27
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： John A. Wheatley , Guanglei Du , Robert L. Brott
IPC: G02B5/02 , F21V8/00 , G02F1/1333 , G02F1/137
CPC classification number: G02B5/02 , G02B6/0051 , G02F1/1323 , G02F1/133362 , G02F1/13476 , G02F1/137 , G02F1/13781 , G02F2001/133626 , G02F2001/13756
Abstract: Optical systems are described that include a lighting component, a switchable diffuser adjacent the lighting component, and a low-absorbing optical component disposed adjacent the switchable diffuser opposite the lighting component or disposed adjacent the lighting component opposite the switchable diffuser or disposed adjacent the lighting component opposite the display panel. The switchable diffuser is capable of being in either a substantially clear state or in a first hazy state. The low-absorbing optical component provides a collimating effect or a turning effect when the lighting component is illuminated and the switchable diffuser is in the substantially clear state.
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公开(公告)号：US20180003364A1
公开(公告)日：2018-01-04
申请号：US15545360
申请日：2017-02-25
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： John A. Wheatley , Guanglei Du , Kenneth A. Epstein
IPC: F21V14/00 , G02F1/1334 , G02F1/133 , G02F1/1335 , G02F1/137
Abstract: An optical system including a lighting component and a switchable diffuser in optical communication with the lighting component. The optical system may further include a low absorbing optical component. At least one outer surface of the switchable diffuser and/or the low absorbing optical component includes light redirecting structures. When the switchable diffuser is in a first state and the optical system produces a light output, the light redirecting structures are configured to increase the full width at half-maximum (FWHM) of the light output of the optical system in at least one direction by at least 5 degrees relative to that of an otherwise equivalent optical system that does not include the light redirecting structures.
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