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    OPTICAL SYSTEM
    1.
    发明申请
    OPTICAL SYSTEM 有权

    公开(公告)号：US20250042111A1

    公开(公告)日：2025-02-06

    申请号：US18925701

    申请日：2024-10-24

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Andrew J. Ouderkirk ,  Timothy L. Wong ,  Zhisheng Yun ,  Erin A. McDowell ,  Gregg A. Ambur

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

    Abstract: An optical system is substantially centered on an optical axis and includes a display panel configured to emit an image, where the optical system configured to display a virtual image of the emitted image emitted to a viewer; and an optical lens disposed between a partial reflector and a reflective polarizer. The partial reflector has an average optical reflectance of at least 30% in a desired plurality of wavelengths. The reflective polarizer is configured to substantially transmit light having a first polarization state and substantially reflect light having an orthogonal second polarization state. The reflective polarizer is curved about two orthogonal axes and disposed on a major surface of the optical lens. The reflective polarizer is substantially optically uniaxial at at least one location of the reflective polarizer. The emitted image is transmitted by the reflective polarizer after it is first reflected by the reflective polarizer.

    OPTICAL COMPONENTS AND OPTICAL SYSTEMS
    2.
    发明公开
    OPTICAL COMPONENTS AND OPTICAL SYSTEMS 审中-公开

    公开(公告)号：US20240288616A1

    公开(公告)日：2024-08-29

    申请号：US18657033

    申请日：2024-05-07

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Gregg A. Ambur ,  Jo A. Etter ,  Adam D. Haag ,  Carl A. Stover ,  Timothy J. Nevitt ,  Zhisheng Yun ,  Timothy L. Wong

    IPC: G02B5/30 ,  G02B27/28

    CPC classification number: G02B5/305 ,  G02B27/283

    Abstract: An optical component includes a first optical element having a curved first major surface; and an optical stack formed into a curved shape. The optical stack is bonded and conforms to the curved first major surface of the first optical element. The optical stack includes a reflective polarizer including a plurality of polymeric layers; and a non-adhesive flexible optical layer bonded to the reflective polarizer prior to forming the optical stack into the curved shape, such that the non-adhesive flexible optical layer bonded to the reflective polarizer improves a desired optical property of the reflective polarizer upon forming the optical stack into the curved shape relative to that of the reflective polarizer being formed into the curved shape without the non-adhesive flexible optical layer bonded to the reflective polarizer.

    Method of fabricating an optical assembly
    3.
    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.

    THERMOFORMED ABRASION-RESISTANT MULTILAYER OPTICAL FILM AND METHOD OF MAKING THE SAME
    6.
    发明申请
    THERMOFORMED ABRASION-RESISTANT MULTILAYER OPTICAL FILM AND METHOD OF MAKING THE SAME 有权

    公开(公告)号：US20210221080A1

    公开(公告)日：2021-07-22

    申请号：US17059843

    申请日：2019-05-30

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Benjamin R. Coonce ,  Richard J. Pokorny ,  Thomas P. Klun ,  Chunjie Zhang ,  Gregg A. Ambur ,  Benjamin G. Sonnek ,  Daniel J. Richter ,  Jung-Sheng Wu

    IPC: B29D11/00 ,  B29C51/26 ,  G02B1/14 ,  G02B1/08

    Abstract: A method of making a shaped abrasion-resistant multilayer optical film includes providing a curable composition comprising, based on the total weight of components a) to d) components: a) 87 to 96 weight percent of urethane (meth)acrylate compound having an average (meth)acrylate functionality of 2 to 4.8; b) 2 to 12.5 weight percent of (meth)acrylate monomer having a (meth)acrylate functionality of 1 to 2, wherein the (meth)acrylate monomer does not comprise a urethane (meth)acrylate compound; optionally c) 0.5 to 2 weight percent of silicone (meth)acrylate; and d) optional effective amount of photoinitiator. The curable composition is coated onto an MOF. Optionally, the curable composition to is at least partially dried. Next, the curable composition or the at least partially dried curable composition is at least partially cured to provide an abrasion-resistant multilayer optical film. Lastly, the abrasion-resistant multilayer optical film is thermoformed using a female mold having a mold surface. At least a portion of the mold surface has a radius of curvature of 58 to 76 mm and a maximum depth of 13 to 20 mm.

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