-
公开(公告)号：US11749900B2
公开(公告)日：2023-09-05
申请号：US17044054
申请日：2019-04-04
Applicant: 3M Innovative Properties Company
Inventor： Dipankar Ghosh , Jaewon Kim , Stephen J. Etzkorn , Ronald D. Jesme , Mohsen Salehi , Guanglei Du , John A. Wheatley
CPC classification number: H01Q17/004 , G01S7/03 , H01Q1/3233 , H01Q1/38 , H01Q1/421 , H05K1/0237 , G01S7/027
Abstract: Radar standing wave dampening systems and components are described. In particular, systems and components including an absorber composite including at least one of ceramic filler, magnetic filler, or conductive filler materials are described. Such components can reduce the intensity of standing waves and may also be combined in systems with one or more gradient permittivity tapes or films.
-
公开(公告)号：US11686891B2
公开(公告)日：2023-06-27
申请号：US16462249
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
CPC classification number: G02B5/22 , G01J3/0229 , A61B5/02427 , A61B5/681 , G02B2207/123
Abstract: A detector system is described that includes a detector that is sensitive to wavelengths in a detection wavelength range. The detector system further includes a light control film that is disposed on the detector and includes a plurality of alternating first and second regions. Each first region has a width W and a height H, where H/W≥1. Each first region has a substantially low transmission in a first portion of the detection wavelength range and a substantially high transmission in the remaining portion of the detection wavelength range. Each second region has a substantially high transmission in the detection wavelength range.
-
公开(公告)号：US11640019B2
公开(公告)日：2023-05-02
申请号：US16462251
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
IPC: G02B5/124 , G02B5/136 , G02B5/12 , G02B5/00 , G02F1/1335
Abstract: A retroreflective system is disclosed that includes a retroreflective sheet for retroreflecting light, and a light control film disposed on the retroreflective sheet. For a first wavelength, light incident on the light control film at each of a first and second angles of incidence is retroreflected. For a second wavelength, light incident on the light control film at the first, but not the second, angle of incidence is retroreflected.
-
公开(公告)号：US11360248B2
公开(公告)日：2022-06-14
申请号：US16630534
申请日：2018-07-25
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Neeraj Sharma , Guanglei Du , Matthew E. Sousa , Jeremy O. Swanson , Jung-Sheng Wu
Abstract: Systems including one or both of a light emitter or a light receiver and an optical filter adjacent one or both of the light emitter or the light receive are described. The optical filter includes a wavelength selective scattering layer that scatters near-infrared light less than visible light. The wavelength selective scattering layer includes a plurality of particles. The plurality of particles have an imaginary refractive index less than 10.
-
公开(公告)号：US20210263203A1
公开(公告)日：2021-08-26
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
IPC: G02B5/20
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%.
-
Patent Agency Ranking
公开(公告)号：US20210050673A1
公开(公告)日：2021-02-18
申请号：US17044054
申请日：2019-04-04
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Dipankar Ghosh , Jaewon Kim , Stephen J. Etzkorn , Ronald D. Jesme , Mohsen Salehi , Guanglei Du , John A. Wheatley
Abstract: Radar standing wave dampening systems and components are described. In particular, systems and components including an absorber composite including at least one of ceramic filler, magnetic filler, or conductive filler materials are described. Such components can reduce the intensity of standing waves and may also be combined in systems with one or more gradient permittivity tapes or films.
-
公开(公告)号：US20200003935A1
公开(公告)日：2020-01-02
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.
-
公开(公告)号：US10429037B2
公开(公告)日：2019-10-01
申请号：US15524837
申请日：2015-11-05
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： John A. Wheatley , Guanglei Du
IPC: F21V11/00 , F21V14/00 , F21V7/04 , F21V7/05 , F21V7/22 , F21V13/02 , G02F1/1334 , G02B5/02 , G02B5/04
Abstract: Optical devices are disclosed. In particular, optical devices including a collimated light source (140), at switchable diffuser (110), and at least one light deflecting element (120, 130) are disclosed. The electrically switchable diffuser (110), in combination with the at least light deflecting element (120, 130) can provide significant changes in the overall distribution of light at the electrically switchable diffuser (110) is switched between two or more states.
-
公开(公告)号：US20190293849A1
公开(公告)日：2019-09-26
申请号：US16341709
申请日：2016-10-20
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Guanglei Du , John A. Wheatley , Yihang Lv , Zhiyong Xu , Jingfei Chen
IPC: G02B5/22
Abstract: An example article may include an optical filter and a multilayer stack adjacent the optical filter. The multilayer stack may include a plurality of layers. Each respective layer of the plurality layers may define a respective window edge of a plurality of window edges. The plurality of window edges may define an optical window configured to transmit light through the optical filter. At least a first respective window edge of the plurality of window edges may be stepped relative to at least a second respective window edge of the plurality of window edges.
-
公开(公告)号：US20170116937A1
公开(公告)日：2017-04-27
申请号：US15315076
申请日：2015-05-27
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Guanglei Du , John A. Wheatley , Christopher R. Yungers , James M. Hillis
IPC: G09G3/36 , G02F1/13 , G02F1/1347
CPC classification number: G09G3/3644 , G02B6/0011 , G02F1/1323 , G02F1/13306 , G02F1/133504 , G02F1/13476 , G09G2310/06 , G09G2320/068
Abstract: Optical systems are described that include a switchable diffuser, a display panel, a lighting component and a diffuser controller. The diffuser controller is configured to switch the state of the switchable diffuser when the diffuser controller determines that the diffuser state is to be changed. The diffuser controller may be configured to vary an output level of the display panel in association with a change in state of the switchable diffuser. The optical system may also include a switching device which may be separable from the display panel.
-
-
-
-
-
-
-
-
-
Search Results
53
records
(took 0.029 seconds)
