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    OPTICAL SYSTEM
    11.
    发明申请
    OPTICAL SYSTEM 审中-公开

    公开(公告)号：US20190018235A1

    公开(公告)日：2019-01-17

    申请号：US15754002

    申请日：2016-09-02

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Andrew J. Ouderkirk ,  Zhisheng Yun ,  Timothy L. Wong ,  Erin A. McDowell ,  Jo A. Etter ,  Robert M. Jennings

    IPC: G02B27/00 ,  G02B17/08 ,  G02B5/30 ,  G02B27/22

    Abstract: An optical system including at least a first lens, a partial reflector and a reflective polarizer is described. The optical system has an optical axis such that a light ray propagating along the optical axis passes through the first lens the partial reflector and the reflective polarizer without being substantially refracted. At least one major surface of the optical system is rotationally asymmetric about the optical axis. A major surface of the optical system may have a first portion defined by a first equation and a second portion adjacent the first portion defined by a different equation. The first lens may have a contoured edge adapted to be placed adjacent an eye of a viewer and substantially conform to the viewer's face.

    Method of fabricating an optical assembly
    13.
    发明授权
    Method of fabricating an optical assembly 有权

    公开(公告)号：US11630291B2

    公开(公告)日：2023-04-18

    申请号：US17583598

    申请日：2022-01-25

    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 ,  G02B5/30 ,  G02B27/28

    Abstract: A method of fabricating an optical assembly includes providing a first mold having a first curved mold surface; placing a substantially flat reflective polarizer; on the first curved mold surface and applying at least one of pressure and heat to at least partially conform the reflective polarizer to the first curved mold surface; providing a second mold comprising a second mold surface, the first and second mold surfaces defining a mold cavity therebetween; substantially filling the mold cavity with a flowable material having a temperature greater than a glass transition temperature of the reflective polarizer; and solidifying the flowable material to form a solid optical element bonded to the reflective polarizer. A maximum variation of an orientation of a pass polarization state across the bonded reflective polarizer is within about 3 degrees of a maximum variation of the orientation of the pass polarization state across the substantially flat reflective polarizer.

    DISPLAY SYSTEM
    15.
    发明申请
    DISPLAY SYSTEM 有权

    公开(公告)号：US20210278677A1

    公开(公告)日：2021-09-09

    申请号：US17329678

    申请日：2021-05-25

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Andrew J. Ouderkirk ,  Zhisheng Yun ,  Timothy L. Wong ,  Erin A. McDowell ,  Jo A. Etter ,  Robert M. Jennings

    IPC: G02B27/01 ,  G02B13/00 ,  B29D11/00 ,  G02B17/08 ,  G02B5/30 ,  G02B27/14 ,  G02B27/28 ,  G02B27/00 ,  G02B27/09 ,  G03B21/28

    Abstract: A display system includes an optical system and a curved display disposed to emit light toward the optical system. The optical system includes at least a first optical lens, a partial reflector and a reflective polarizer. The optical system has an optical axis such that a light ray propagating along the optical axis passes through the first optical lens the partial reflector and the reflective polarizer without being substantially refracted. At least one major surface of the optical system can be rotationally asymmetric about the optical axis. A major surface of the optical system may have a first portion defined by a first equation and a second portion adjacent the first portion defined by a different equation. The first optical lens may have a contoured edge adapted to be placed adjacent an eye of a viewer and substantially conform to the viewer's face.

    Optical systems
    19.
    发明授权
    Optical systems 有权

    公开(公告)号：US12007595B2

    公开(公告)日：2024-06-11

    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 ,  G02B1/04

    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.

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