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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：US20200292737A1
公开(公告)日：2020-09-17
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：US12299239B2
公开(公告)日：2025-05-13
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
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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公开(公告)号：US12147122B2
公开(公告)日：2024-11-19
申请号：US18558425
申请日：2022-05-17
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Carl A. Stover , Matthew E. Sousa , Bharat R. Acharya , Benjamin J. Forsythe , Robert D. Taylor , Quinn D. Sanford
IPC: G02F1/1335 , G02F1/1333 , G02F1/13357
Abstract: A backlight including a front reflector disposed on a back reflector and defining a cavity therebetween. For a visible wavelength range and for a first incident angle of less than 5 degrees, the front reflector has an average transmittance of less than 20% for the incident light polarized along a first direction, and an average transmittance of between 20% and 85% for the incident light polarized along an orthogonal second direction. For a visible wavelength range and for a second incident angle of greater than 40 degrees, the front reflector has an average transmittance of less than 40% for each of the first and second directions. For at least a first wavelength in an infrared wavelength range, the front reflector has a transmittance of greater than about 40% for each of the first and second incident angles and for each of the first and second directions. For each of the first and second incident angles, for the incident light polarized along each of the first and second directions, the back reflector has a transmittance of greater than 30% for the first infrared wavelength, and an average transmittance of less than 20% in the visible range.
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公开(公告)号：US11999188B2
公开(公告)日：2024-06-04
申请号：US17610498
申请日：2020-05-26
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Kevin W. Gotrik , Scott J. Jones , Huiwen Tai , Joan M. Frankel , Robert R. Owings , Bhaskar V. Velamakanni , Jeanne M. Bruss , David J. Rowe , Matthew E. Sousa , Bradley L. Givot
CPC classification number: B44C1/1708 , C23C14/5886
Abstract: A transfer article with a thickness of less than 3 micrometers includes a first acrylate layer that is releasable from a metal or doped semiconductor release layer at a release value of from 2 to 50 grams/inch. The article includes a functional layer overlaying the first acrylate layer. The functional layer includes at least one microfractured inorganic layer about 3 nanometers to about 200 nanometers thick, which has a plurality of toolmarks interspersed with cracks.
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Patent Agency Ranking
公开(公告)号：US11448808B2
公开(公告)日：2022-09-20
申请号：US16475207
申请日：2018-01-03
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Guanglei Du , John A. Wheatley , Matthew E. Sousa , Anthony M. Renstrom , Neeraj Sharma
Abstract: Example systems may include one or both of a light emitter and a light receiver, and an optical filter. The optical filter may include a wavelength selective scattering layer configured to scatter visible light. The optical filter may include a wavelength selective reflecting layer having a predetermined transmission band configured to compensate for a color deviation. The optical filter may include a broadband reflecting layer having a predetermined reflection band configured to compensate for a color deviation. The optical filter may include a low-index layer configured to reduce a color deviation in light emitted by the light emitter or received by the light receiver. The wavelength selective scattering layer may include nanoparticles dispersed in a binder, wherein the ratio of the nanoparticles to the binder by weight is at least 50%. Example articles may include example optical filters.
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公开(公告)号：US20210229834A1
公开(公告)日：2021-07-29
申请号：US17250044
申请日：2019-05-08
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： James W. Howard , James L.C. Werness, Jr. , Caroline M. Ylitalo , Claire R. Donoghue , John A. Wheatley , Robert D. Lorentz , Tien Yi T.H. Whiting , Matthew E. Sousa , Carla H. Barnes
Abstract: The systems and techniques of this disclosure relate to improving work safety in confined spaces by, for example, using machine vision to analyze location marking labels in the confined space to control an unmanned aerial vehicle (UAV) within the confined space. In one example, a system includes a UAV that includes an imaging device and a processor communicatively coupled to the imaging device. The processor may be configured to receive, from the imaging device, an image of a confined space, detect a location marking label within the image, process the image to decode data embedded on the location marking label, and control navigation of the UAV within the confined space based on the data decoded from the location marking label.
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公开(公告)号：US20210080632A1
公开(公告)日：2021-03-18
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.
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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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公开(公告)号：US20240053522A1
公开(公告)日：2024-02-15
申请号：US18038292
申请日：2021-11-02
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Bharat R. Acharya , Brett J. Sitter , Robert D. Taylor , Zhicheng Tian , James P. DiZio , Quinn D. Sanford , Kent C. Hackbarth , Matthew E. Sousa
Abstract: An optical construction includes a reflective polarizer and an optical film. The optical film includes a matrix and a plurality of first particles dispersed in the matrix. Each of the matrix and the plurality of first particles includes a silicone polyoxamide and an acrylate polymer. For substantially normally incident light and for at least a first wavelength in a first wavelength range, the reflective polarizer reflects about 60% for a first polarization state and transmits about 40% for an orthogonal second polarization state. For at least a second wavelength in a second wavelength range, each of the reflective polarizer and the optical film transmits about 60% of an incident light for each of the first and second polarization states. For at least the first wavelength, optical film has an optical haze and a depolarization ratio. A ratio of the depolarization ratio to the optical haze is less than 0.1.
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