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    OPTICAL SENSOR SYSTEMS
    1.
    发明申请
    OPTICAL SENSOR SYSTEMS 审中-公开

    公开(公告)号：WO2019082130A1

    公开(公告)日：2019-05-02

    申请号：PCT/IB2018/058352

    申请日：2018-10-25

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： SHAVER, Jonah ,  CLEAR, Susannah C. ,  WHEATLEY, John A. ,  CHEN-HO, Kui

    IPC: G06K9/00 ,  H04B10/112 ,  H04B10/116

    CPC classification number: H04B10/1125 ,  G06K9/209 ,  H04B10/116

    Abstract: Systems, assemblies, and methods for detecting changes in polarization states are described. Example systems may include a light receiving unit including a sensor and a receiving polarizer. The sensor is configured to sense light from a polarized light source deflected through the receiving polarizer by a light directing article. The sensor is configured to generate a signal indicative a received polarization state of light deflected by the light directing articles. Such systems may be coupled to vehicles and may be useful for sensor-detectable signs, indicia, and markings to facilitate automated or assisted vehicular transport.

    FLUID CONTROL FILMS WITH HYDROPHILIC SURFACES, METHODS OF MAKING SAME, AND PROCESSES FOR CLEANING STRUCTURED SURFACES
    2.
    发明申请
    FLUID CONTROL FILMS WITH HYDROPHILIC SURFACES, METHODS OF MAKING SAME, AND PROCESSES FOR CLEANING STRUCTURED SURFACES 审中-公开
    具有水力表面的流体控制膜，其制造方法和清洁结构表面的方法

    公开(公告)号：WO2015164468A1

    公开(公告)日：2015-10-29

    申请号：PCT/US2015/027025

    申请日：2015-04-22

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： MEULER, Adam J. ,  CLEAR, Susannah C. ,  SWANSON, Steven P. ,  HALVERSON, Kurt J. ,  RIDDLE, Justin A. ,  ARMSTRONG, Paul B. ,  NELSON, Caleb T. ,  JARIWALA, Chetan P.

    IPC: C08J5/18 ,  B32B3/26 ,  B32B3/30 ,  C03C17/30

    CPC classification number: F25D21/14 ,  B08B1/006 ,  B08B3/10 ,  B32B7/06 ,  B32B7/12 ,  C08J5/18 ,  F15D1/003 ,  F15D1/0085

    Abstract: A fluid control film is provided that includes fluid control channels extending along a channel longitudinal axis. Each of the fluid control channels has a surface and is configured to allow capillary movement of liquid in the channels. The fluid control film further includes a hydrophilic surface treatment covalently bonded to at least a portion of the surface of the fluid control channels. The fluid control film exhibits a capillary rise percent recovery of at least ten percent. Typically, the hydrophilic surface treatment includes functional groups selected from a non-zwitterionic sulfonate, a non-zwitterionic carboxylate, a zwitterionic sulfonate, a zwitterionic carboxylate, a zwitterionic phosphate, a zwitterionic phosphonic acid, and/or a zwitterionic phosphonate. A process for forming a fluid control film is also provided. Further, a process for cleaning a structured surface is provided, including providing a structured surface and a hydrophilic surface treatment covalently bonded to at least a portion of the structured surface, and soiling the structured surface with a material. The process also includes removing the material by at least one of submerging the structured surface in an aqueous fluid, rinsing the structured surface with an aqueous fluid, condensing an aqueous fluid on the structure surface, or wiping the structured surface with a cleaning implement.

    Abstract translation: 提供流体控制膜，其包括沿着通道纵向轴线延伸的流体控制通道。 每个流体控制通道具有表面并且被构造成允许液体在通道中的毛细管移动。 流体控制膜还包括共价键合到流体控制通道的表面的至少一部分的亲水性表面处理。 流体控制膜表现出至少10％的毛细管上升百分比回收率。 通常，亲水表面处理包括选自非两性离子磺酸盐，非两性离子羧酸盐，两性离子磺酸盐，两性离子羧酸盐，两性离子磷酸盐，两性离子膦酸和/或两性离子膦酸盐的官能团。 还提供了一种用于形成流体控制膜的工艺。 此外，提供了一种用于清洁结构化表面的方法，包括提供结构化表面和共价键合到结构化表面的至少一部分的亲水表面处理，并且用材料污染结构化表面。 该方法还包括通过将结构化表面浸没在水性流体中的至少一种来去除材料，用水性流体冲洗结构化表面，在结构表面上冷凝水性流体，或用清洁工具擦拭结构化表面。

    WHITE PAVEMENT MARKING
    6.
    发明申请
    WHITE PAVEMENT MARKING 审中-公开

    公开(公告)号：WO2018172887A1

    公开(公告)日：2018-09-27

    申请号：PCT/IB2018/051707

    申请日：2018-03-14

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： HEDBLOM, Thomas P. ,  CLEAR, Susannah C.

    IPC: E01F9/512

    Abstract: White pavement marking (100) being readily apparent to both the human driver and sensors on a vehicle in both the daytime and night time. The pavement marking comprises a nonporous binder layer (110) comprising a titanium dioxide-coated synthetic mica pearlescent pigment and retroreflective elements (120) distributed on at least a portion of the nonporous binder layer.

    STEPPED RADAR CROSS-SECTION TARGET AND MARKING TAPE
    9.
    发明申请
    STEPPED RADAR CROSS-SECTION TARGET AND MARKING TAPE 审中-公开

    公开(公告)号：WO2019145911A3

    公开(公告)日：2019-08-01

    申请号：PCT/IB2019/050640

    申请日：2019-01-25

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： SALEHI, Mohsen ,  DOERING, Marcel ,  WEINMANN, Christian ,  BUETTNER, Joern ,  CLEAR, Susannah C. ,  RING, Edmund J. ,  SAINATI, Robert A. ,  HEDBLOM, Thomas P.

    IPC: E01F9/00 ,  E01F11/00 ,  G08G1/00

    Abstract: A pathway article that includes a radar reflective structure with a large radar cross section (RCS) in a compact planar structure. The radar reflective structure may include a plurality of elements that act as antennae and may be spaced appropriately on a planar surface creating a radar reflecting surface. The antenna may be a reflecting surface of a stepped triangular slot. Selecting the spacing between the antennae may cause constructive interference and reflection substantially opposite the direction of the incident radar radiation. Pathway articles may also include at least one additional feature that may be detected by other sensors. Examples of other features include retroreflective features detectable by the human eye, visible camera and similar sensors. This redundancy in the detectable features of the pathway article may enable use of sensor fusion to provide greater confidence of detection of the pathway article under a wide range of conditions.

    RADAR-REFLECTIVE PERIODIC ARRAY OF CONDUCTIVE STRIPS, SLOTS AND MARKING TAPE
    10.
    发明申请
    RADAR-REFLECTIVE PERIODIC ARRAY OF CONDUCTIVE STRIPS, SLOTS AND MARKING TAPE 审中-公开

    公开(公告)号：WO2019145909A3

    公开(公告)日：2019-08-01

    申请号：PCT/IB2019/050637

    申请日：2019-01-25

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： CLEAR, Susannah C. ,  RING, Edmund J. ,  SAINATI, Robert A. ,  SALEHI, Mohsen ,  HEDBLOM, Thomas P. ,  DOERING, Marcel ,  WEINMANN, Christian ,  BUETTNER, Joern

    IPC: E01F9/00 ,  E01F11/00 ,  G08G1/00

    Abstract: A pathway article that includes a radar reflective structure with a large radar cross section (RCS) in a compact planar structure. The radar reflective structure may include a plurality of elements that act as antennae and may be spaced appropriately on a planar surface creating a radar reflecting surface. The antennae may be slots in a conductive sheet, or conductive strips. Selecting the spacing between the antennae may cause constructive interference and reflection substantially opposite the direction of the incident radar radiation. Pathway articles may also include at least one additional feature that may be detected by other sensors. Examples of other features include retroreflective features detectable by the human eye, visible camera and similar sensors. This redundancy in the detectable features of the pathway article may enable use of sensor fusion to provide greater confidence of detection of the pathway article under a wide range of conditions.

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