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    BACK-LIT TRANSMISSIVE DISPLAY HAVING VARIABLE INDEX LIGHT EXTRACTION LAYER
    19.
    发明申请
    BACK-LIT TRANSMISSIVE DISPLAY HAVING VARIABLE INDEX LIGHT EXTRACTION LAYER 审中-公开
    具有可变索引光提取层的背景传输显示

    公开(公告)号：US20170031078A1

    公开(公告)日：2017-02-02

    申请号：US15292817

    申请日：2016-10-13

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： David Scott Thompson ,  Kevin R. Schaffer ,  Zhaohui Yang ,  Encai Hao ,  Audrey A. Sherman ,  Michael A. Meis ,  John A. Wheatley ,  Matthew S. Stay ,  Robert F. Kamrath ,  Mikhail L. Pekurovsky ,  Steven D. Solomonson

    IPC: F21V8/00

    CPC classification number: G02B6/005 ,  G02B6/0043 ,  G02B6/0055 ,  G02B6/0056 ,  G02B6/0058 ,  G02B6/0066

    Abstract: This application describes a back-lit transmissive display including a transmissive display and a variable index light extraction layer optically coupled to a lightguide. The variable index light extraction layer has first regions of nanovoided polymeric material and second regions of the nanovoided polymeric material and an additional material. The first and second regions are disposed such that for light being transported at a supercritical angle in the lightguide, the variable index light extraction layer selectively extracts the light in a predetermined way based on the geometric arrangement of the first and second regions. The transmissive display may be a transmissive display panel or a polymeric film such as a graphic.

    Abstract translation: 该应用描述了背光透射显示器，其包括透光显示器和与光导光学耦合的可变折射率光提取层。 可变折射率光提取层具有纳米弹性聚合物材料的第一区域和纳米弹性聚合物材料的第二区域和附加材料。 第一和第二区域被布置成使得对于在光导中以超临界角传输的光，可变索引光提取层基于第一和第二区域的几何布置以预定方式选择性地提取光。 透射显示器可以是透射显示面板或诸如图形的聚合物膜。

    Tubular lighting systems with inner and outer structured surfaces
    20.
    发明授权
    Tubular lighting systems with inner and outer structured surfaces 有权
    具有内部和外部结构化表面的管状照明系统

    公开(公告)号：US09046637B1

    公开(公告)日：2015-06-02

    申请号：US14188687

    申请日：2014-02-25

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Robert Bennett ,  David Scott Thompson ,  Gilles Benoit ,  John Wheatley ,  Karl J. L. Geisler

    IPC: H01J61/30 ,  F21V8/00

    CPC classification number: G02B6/0096 ,  G02B6/0038

    Abstract: Lighting systems include a light-transmissive tube and a light source assembly disposed to inject light into a cavity defined by the tube. The cavity extends along a longitudinal axis. At least a portion of the tube includes an inner structured surface facing the cavity, and an outer structured surface facing away from the cavity. The inner structured surface is configured to direct a first portion of the injected light towards the outer structured surface, and a second portion of the injected light back into the cavity. The inner structured surface includes elongated first features and the outer structured surface includes elongated second features. At least one of the elongated first features and the elongated second features are oriented obliquely relative to the longitudinal axis such that they form respective helixes along the tube.

    Abstract translation: 照明系统包括透光管和设置成将光注入由管限定的空腔中的光源组件。 空腔沿纵向轴线延伸。 管的至少一部分包括面向空腔的内部结构化表面和面向空腔的外部结构化表面。 内部结构化表面被构造成将注入的光的第一部分引向外部结构化表面，并将注入的光的第二部分引回空腔。 内部结构化表面包括细长的第一特征，并且外部结构化表面包括细长的第二特征。 细长的第一特征和细长的第二特征中的至少一个相对于纵向轴线倾斜地定向，使得它们沿着管形成相应的螺旋。

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