中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

23 records (took 0.029 seconds)

    BACKLIGHT WITH COLLIMATING REFLECTIVE POLARIZER
    1.
    发明申请
    BACKLIGHT WITH COLLIMATING REFLECTIVE POLARIZER 审中-公开

    公开(公告)号：WO2022243874A1

    公开(公告)日：2022-11-24

    申请号：PCT/IB2022/054584

    申请日：2022-05-17

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： STOVER, Carl A. ,  SOUSA, Matthew E. ,  ACHARYA, Bharat R. ,  FORSYTHE, Benjamin J. ,  TAYLOR, Robert D. ,  SANFORD, Quinn D.

    IPC: G02F1/1333 ,  G02F1/13357 ,  G06F3/041 ,  G02B5/26 ,  G02B5/30

    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.

    OPTICAL CAMOUFLAGE FILTER
    4.
    发明申请
    OPTICAL CAMOUFLAGE FILTER 审中-公开

    公开(公告)号：WO2019021222A1

    公开(公告)日：2019-01-31

    申请号：PCT/IB2018/055567

    申请日：2018-07-25

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： SHARMA, Neeraj ,  DU, Guanglei ,  SOUSA, Matthew E. ,  SWANSON, Jeremy O. ,  WU, Jung-Sheng

    IPC: G02B5/20

    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.

    OPTICAL FILM, OPTICAL CONSTRUCTION, AND DISPLAY SYSTEM
    5.
    发明申请
    OPTICAL FILM, OPTICAL CONSTRUCTION, AND DISPLAY SYSTEM 审中-公开

    公开(公告)号：WO2022123345A1

    公开(公告)日：2022-06-16

    申请号：PCT/IB2021/060142

    申请日：2021-11-02

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY [US]/[US]

    Inventor： ACHARYA, Bharat R. ,  SITTER, Brett J. ,  TAYLOR, Robert D. ,  TIAN, Zhicheng ,  DIZIO, James P. ,  SANFORD, Quinn D. ,  HACKBARTH, Kent C. ,  SOUSA, Matthew E.

    IPC: G02B5/30 ,  G02B5/02 ,  G02B1/04

    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.

    OPTICALLY DIFFUSIVE FILM WITH ELONGATED STRUCTURES
    6.
    发明申请
    OPTICALLY DIFFUSIVE FILM WITH ELONGATED STRUCTURES 审中-公开

    公开(公告)号：WO2021224716A1

    公开(公告)日：2021-11-11

    申请号：PCT/IB2021/053423

    申请日：2021-04-26

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： PHAM, Tri D. ,  ROSEN, David A. ,  CHEN, Qunyi ,  DENICOLA, Lisa A. ,  SANFORD, Quinn D. ,  COLE, Matthew S. ,  ACHARYA, Bharat R. ,  SOUSA, Matthew E. ,  TAYLOR, Robert D. ,  FORSYTHE, Benjamin J.

    IPC: G02B5/02 ,  G02B5/30

    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.

    COLOR COMPENSATING OPTICAL FILTERS
    7.
    发明申请
    COLOR COMPENSATING OPTICAL FILTERS 审中-公开

    公开(公告)号：WO2018129076A1

    公开(公告)日：2018-07-12

    申请号：PCT/US2018/012232

    申请日：2018-01-03

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： DU, Guanglei ,  WHEATLEY, John A. ,  SOUSA, Matthew E. ,  RENSTROM, Anthony M. ,  SHARMA, Neeraj

    IPC: G02B5/26 ,  B32B5/16 ,  G02B5/02

    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.

    OPTICAL CONSTRUCTION AND DISPLAY SYSTEM INCLUDING SAME
    8.
    发明申请
    OPTICAL CONSTRUCTION AND DISPLAY SYSTEM INCLUDING SAME 审中-公开

    公开(公告)号：WO2021224761A1

    公开(公告)日：2021-11-11

    申请号：PCT/IB2021/053688

    申请日：2021-05-03

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： SOUSA, Matthew E. ,  ACHARYA, Bharat R. ,  TAYLOR, Robert D. ,  PETAJA, Jason S. ,  RENSTROM, Anthony M. ,  KOLB, William Blake ,  SANFORD, Quinn D. ,  DENICOLA, Lisa A.

    IPC: G02B5/30 ,  G02B5/02

    Abstract: An optical construction includes a reflective polarizer having a structured major surface, and an optically diffusive layer conformably disposed on the structured major surface so that opposing first and second major surfaces of the optically diffusive layer substantially conform to the structured major surface. The optically diffusive layer includes a plurality of nanoparticles defining a plurality of voids therebetween. For normally incident light and visible and infrared wavelength ranges: in the visible wavelength range and for a first polarization state, the optical construction has an average total transmittance of greater than about 40% and an average specular transmittance Vs; in the visible wavelength range and for an orthogonal second polarization state, the optical construction has an average total reflectance of greater than about 80%; and in the infrared wavelength range, the optical construction has an average specular transmittance Is, Is/ Vs ≥ 2.5.

Patent Agency Ranking