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    MULTI-STACK OPTICAL BANDPASS FILM WITH ELECTRO MAGNETIC INTERFERENCE SHIELDING FOR OPTICAL DISPLAY FILTERS
    21.
    发明申请
    MULTI-STACK OPTICAL BANDPASS FILM WITH ELECTRO MAGNETIC INTERFERENCE SHIELDING FOR OPTICAL DISPLAY FILTERS 审中-公开
    带光电显示滤光片的电磁干扰屏蔽多层光学薄膜

    公开(公告)号：WO2009058607A1

    公开(公告)日：2009-05-07

    申请号：PCT/US2008/080582

    申请日：2008-10-21

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： BRIGHT, Clark I. ,  LE, John D. ,  FITZER, Robert C. ,  MAKI, Stephen P. ,  LYONS, Christopher S. ,  JEONG, Hun

    IPC: G02B5/20 ,  G02B5/28

    CPC classification number: G02B5/287

    Abstract: Provided are multi-component films useful as optical display filters. The optical display filters include a multi-layer stack that contains at least two dyads (106), i.e. pairs of layres including an electro-conducting layer (104B) and a dielectric space layer (104C), whereby in at least one of the dyads one transparent, organic layer with a refractive index greater than 1.49 is arranged. The filters have high visible light transmittance, low visible light reflection, and provide electromagnetic interference shielding in the range of 100-1000 MHZ.

    Abstract translation: 提供可用作光学显示滤光器的多组分膜。 光学显示滤光器包括多层堆叠，其包含至少两个二层（106），即包括导电层（104B）和电介质空间层（104C）的层间对，由此在至少一个二层 一个折射率大于1.49的透明有机层被布置。 滤光片具有高可见光透射率，低可见光反射，并提供在100-1000 MHZ范围内的电磁干扰屏蔽。

    OPTICAL SYSTEM
    22.
    发明申请
    OPTICAL SYSTEM 审中-公开

    公开(公告)号：WO2022229749A1

    公开(公告)日：2022-11-03

    申请号：PCT/IB2022/053176

    申请日：2022-04-05

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： LE, John D. ,  WONG, Timothy L. ,  HAO, Bing ,  AMBUR, Gregg A. ,  KENT, Susan L.

    IPC: G02B5/30 ,  G02B27/02

    Abstract: An optical system includes an optical cavity defined by a reflective polarizer and a partial reflector. The optical cavity includes one or more optical components including a first optical lens spaced apart from the reflective polarizer. Each optical component within the optical cavity has a substantially uniform retardance or a maximum retardance of less than about 10 nm. The optical system includes a second optical lens disposed outside the optical cavity. The reflective polarizer is disposed on and conforms to a major surface of the second optical lens. The second optical lens has a substantially nonuniform retardance and a maximum retardance in a largest active region of the second optical lens of greater than about 12 nm.

    OPTICAL SYSTEMS
    23.
    发明申请
    OPTICAL SYSTEMS 审中-公开

    公开(公告)号：WO2022130056A1

    公开(公告)日：2022-06-23

    申请号：PCT/IB2021/060626

    申请日：2021-11-16

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： LE, John D. ,  AMBUR, Gregg A. ,  YUN, Zhisheng ,  JENNINGS, Robert M. ,  KOTZ, Arthur L. ,  WONG, Timothy L. ,  YUST, David T. ,  MCGRATH, Kayla A.

    IPC: G02B5/30 ,  G02B3/00 ,  G02B1/04

    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.

    OPTICAL SYSTEM FOR DISPLAYING MAGNIFIED VIRTUAL IMAGE
    24.
    发明申请
    OPTICAL SYSTEM FOR DISPLAYING MAGNIFIED VIRTUAL IMAGE 审中-公开

    公开(公告)号：WO2021014245A1

    公开(公告)日：2021-01-28

    申请号：PCT/IB2020/056274

    申请日：2020-07-02

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： LE, John D. ,  YUN, Zhisheng

    IPC: G02B25/00 ,  H04N5/64 ,  G02B27/02 ,  H04N13/344

    Abstract: An optical system for displaying a magnified virtual image of an image emitted by a display to a viewer. The optical system includes first and second lenses facing each other and spaced apart by an air gap to define an optical cavity therebetween. The optical cavity includes a reflective polarizer disposed on a major surface of the first lens, and an optical stack disposed on a major surface of the second lens. The optical stack includes an absorbing polarizer, a first retarder layer, a partial reflector, and a second retarder layer disposed between the absorbing polarizer and the partial reflector. The first and/or second lenses is/are birefringent lens provided outside the optical cavity to control polarization.

    OPTICAL STACK AND POLARIZING BEAM SPLITTER
    25.
    发明申请
    OPTICAL STACK AND POLARIZING BEAM SPLITTER 审中-公开

    公开(公告)号：WO2019123141A1

    公开(公告)日：2019-06-27

    申请号：PCT/IB2018/060028

    申请日：2018-12-13

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： ZHISHENG, Yun ,  LE, John D. ,  NEVITT, Timothy J. ,  KENT, Susan L.

    IPC: G02B5/30 ,  G02B27/28

    Abstract: An optical stack including a first reflective polarizer adhered to a second reflective polarizer is described. For normally incident light and each wavelength in a same predetermined wavelength range, each reflective polarizer transmits at least 80% of light polarized along a pass axis of the reflective polarizer and reflects at least 90% of light polarized along an orthogonal block axis of the reflective polarizer. Each reflective polarizer includes a plurality of polymeric interference layers reflecting and transmitting light primarily by optical interference in the predetermined wavelength range. A separation between the two polymeric interference layers in the plurality of polymeric interference layers farthest from each other are dl and d2 for the respective first and second reflective polarizers, dl is at least 20% less than d2. Polarizing beam splitters including the optical stack and optical systems including the polarizing beam splitter are described.

    PREPARATION OF ELECTRICAL CIRCUITS BY ADHESIVE TRANSFER
    28.
    发明申请
    PREPARATION OF ELECTRICAL CIRCUITS BY ADHESIVE TRANSFER 审中-公开
    通过粘合剂转移制备电路

    公开(公告)号：WO2017180502A1

    公开(公告)日：2017-10-19

    申请号：PCT/US2017/026776

    申请日：2017-04-10

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： LE, John D. ,  DAVID, Moses M. ,  MCCUTCHEON, Jeffrey W. ,  TRAN, Hung T.

    IPC: H05K3/12 ,  H05K3/14 ,  H05K3/00 ,  H05K3/32

    CPC classification number: H05K3/1275 ,  H05K3/0014 ,  H05K3/146 ,  H05K3/321 ,  H05K2201/09036 ,  H05K2201/09045 ,  H05K2203/0108 ,  H05K2203/0528 ,  H05K2203/095

    Abstract: Multilayer articles that include electrical circuits are prepared by the adhesive transfer of electrical circuit elements to the surface of an adhesive. A number of different methodologies are used, with all of the methodologies including the use of simple layers of circuit-forming material on a releasing substrate and structuring to generate circuit elements which can be transferred to an adhesive surface. In some methodologies, a structured releasing substrate is used to selectively transfer circuit-forming material, either from protrusions on the releasing substrate or from depressions on the releasing substrate. In other methodologies, an unstructured releasing substrate is used and either embossed to form a structured releasing substrate or contacted with a structured adhesive layer to selectively transfer circuit-forming material.

    Abstract translation: 包括电路的多层制品通过将电路元件粘合剂转移到粘合剂表面来制备。 使用许多不同的方法，所有方法包括在释放衬底上使用简单的电路形成材料层和构造成产生可转移到粘合剂表面的电路元件。 在一些方法中，使用结构化释放基板来选择性地传送电路形成材料，或者从释放基板上的突起或者释放基板上的凹陷处传送电路形成材料。 在其他方法中，使用非结构化释放基材并且压花以形成结构化释放基材或与结构化粘合剂层接触以选择性地传递电路形成材料。

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