中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

34 records (took 0.021 seconds)

    Curved reflective polarizer
    1.
    发明授权
    Curved reflective polarizer 有权

    公开(公告)号：US12265243B2

    公开(公告)日：2025-04-01

    申请号：US18060033

    申请日：2022-11-30

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Robert M. Jennings ,  Gregg A. Ambur ,  Jo A. Etter ,  Benjamin G. Sonnek ,  Zhisheng Yun

    IPC: G02B5/30 ,  B32B7/035 ,  G02B6/27 ,  G02B6/293 ,  G02B17/08 ,  G02B27/01 ,  G02B27/14

    Abstract: A curved reflective has at least one location having a radius of curvature in a range from about 6 mm to about 1000 mm. Each location on the reflective polarizer has a maximum reflectance greater than about 70% for a block polarization state, a maximum transmittance greater than about 70% for an orthogonal pass polarization state, and a minimum transmittance for the block polarization state. For a continuous first portion of the reflective polarizer extending between different first and second edges of the reflective polarizer and defining disjoint second and third portions of the reflective polarizer, the minimum transmittance of the reflective polarizer for the block polarization state is higher at each location in at least 70% of the first portion than at each location in at least 70% of the second portion and at each location in at least 70% of the third portion.

    Shaped optical films and methods of shaping optical films
    3.
    发明授权
    Shaped optical films and methods of shaping optical films 有权

    公开(公告)号：US11358355B2

    公开(公告)日：2022-06-14

    申请号：US16754825

    申请日：2018-10-23

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Robert M. Jennings ,  William T. Fay ,  Jo A. Etter ,  Arthur L. Kotz ,  David J. W. Aastuen

    IPC: B29D11/00 ,  B29C51/42

    Abstract: Optical films having a curved shaped and methods of shaping optical films are described. A method of shaping an optical film includes the steps of disposing the optical film adjacent first and second rollers spaced apart along a first direction, securing opposing first and second ends of the optical film, providing a curved mold surface, and shaping the optical film by contacting the optical film with the curved mold surface while stretching the optical film along the first direction and keeping a threshold distance between closest points on the optical film contacting the first roller and contacting the curved mold surface less than the width of the optical film to reduce buckling of the optical film.

    Optical Systems
    7.
    发明公开
    Optical Systems 审中-公开

    公开(公告)号：US20240004117A1

    公开(公告)日：2024-01-04

    申请号：US18254437

    申请日：2021-11-16

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： John D. Le ,  Gregg A. Ambur ,  Zhisheng Yun ,  Robert M. Jennings ,  Arthur L. Kotz ,  Timothy L. Wong ,  David T. Yust ,  Timothy J. Nevitt ,  Kayla A. McGrath

    IPC: G02B5/30

    CPC classification number: G02B5/305 ,  G02B1/041

    Abstract: An optical assembly includes an integral lens assembly having one or more lenses bonded to each other with spaced apart major first and second lens surfaces. First and second optical films are bonded to respective major first and second lens surfaces. The first and second optical films includes a plurality of polymeric layers. Each of the polymeric layers have an average thickness of less than about 500 nm. For a substantially normally incident light and a visible wavelength range the plurality of polymeric layers in the first optical film has an average optical transmittance and an average optical reflectance of greater than about 70% for a first polarization state and an orthogonal second polarization state, respectively. The plurality of polymeric layers in the second optical film has an average optical transmittance of greater than about 70% for at least one of the first and second polarization states.

    SHAPED OPTICAL FILMS AND METHODS OF SHAPING OPTICAL FILMS
    8.
    发明申请
    SHAPED OPTICAL FILMS AND METHODS OF SHAPING OPTICAL FILMS 有权

    公开(公告)号：US20210187885A1

    公开(公告)日：2021-06-24

    申请号：US16754825

    申请日：2018-10-23

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Robert M. Jennings ,  William T. Fay ,  Jo A. Etter ,  Arthur L. Kotz ,  David J.W. Aastuen

    IPC: B29D11/00 ,  B29C51/42

    Abstract: Optical films having a curved shaped and methods of shaping optical films are described. A method of shaping an optical film includes the steps of disposing the optical film adjacent first and second rollers spaced apart along a first direction, securing opposing first and second ends of the optical film, providing a curved mold surface, and shaping the optical film by contacting the optical film with the curved mold surface while stretching the optical film along the first direction and keeping a threshold distance between closest points on the optical film contacting the first roller and contacting the curved mold surface less than the width of the optical film to reduce buckling of the optical film.

    OPTICAL SYSTEM
    9.
    发明申请
    OPTICAL SYSTEM 审中-公开

    公开(公告)号：US20200081234A1

    公开(公告)日：2020-03-12

    申请号：US16495356

    申请日：2018-05-14

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Jo A. Etter ,  Timothy L. Wong ,  Zhisheng Yun ,  Gregg A. Ambur ,  Benjamin G. Sonnek ,  Robert M. Jennings

    IPC: G02B17/08 ,  G02B27/28 ,  G02B5/30

    Abstract: Optical systems for displaying an image are described. The optical systems include spaced apart first and second optical lenses. A partial reflector is disposed on and conforms to a major surface of the first optical lens where the major surface can have a best-fit spherical radius of curvature in a range from 20 mm to 200 mm. A reflective polarizer is disposed on and conforms to a major surface of the second optical lens where the major surface can have a best-fit spherical radius of curvature in a range from 14 mm to 250 mm. A retarder layer is disposed between the reflective polarizer and the partial reflector. The first optical lens can have an optical birefringence of less than 15 nm/cm and the second optical lens can have an optical birefringence of greater than 15 nm/cm. A method of fabricating an optical assembly is described.

Patent Agency Ranking