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    Optical filter
    1.
    发明授权
    Optical filter 有权

    公开(公告)号：US11016229B2

    公开(公告)日：2021-05-25

    申请号：US16095406

    申请日：2017-05-30

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： John A. Wheatley ,  Gilles J. Benoit ,  Todd A. Ballen ,  Kenneth L. Smith ,  Guanglei Du ,  Edward J. Kivel ,  Rolf W. Biernath ,  Jordan D. Whitney ,  Daniel J. Schmidt

    IPC: G02B5/20 ,  G02B27/28 ,  G02B5/26 ,  G02B5/30

    Abstract: An optical filter including a polarizer and a visible light blocking filter is described. The polarizer is configured to transmit at least 60 percent of light in a first infrared wavelength range that is incident on the polarizer at normal incidence in a first polarization state, to transmit less than 30 percent of light in a second infrared wavelength that is incident on the polarizer at normal incidence in a second polarization state orthogonal to the first polarization state, and to transmit less than 30 percent of light in a third infrared wavelength range that is incident on the polarizer with a 50 degree angle of incidence in the second polarization state. The visible light blocking filter configured to transmit at least 60 percent of light in the first infrared wavelength range at normal incidence in the first polarization state.

    MICROTILED PRISMATIC CUBE CORNER ARTICLES
    2.
    发明申请
    MICROTILED PRISMATIC CUBE CORNER ARTICLES 审中-公开

    公开(公告)号：US20170299787A1

    公开(公告)日：2017-10-19

    申请号：US15639817

    申请日：2017-06-30

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Kenneth L. Smith ,  Todd A. Ballen ,  Nelson D. Sewall

    IPC: G02B5/124

    CPC classification number: G02B5/124

    Abstract: Cube corner articles such as retroreflective sheeting utilize multiple cube corner arrays in a tiled configuration, each tile containing one array of canted cube corner elements. The tiles may be long and narrow, and the array in each of at least two or three adjacent tiles, or even in every tile, may include at least one lengthwise groove that is parallel to an edge of the tile and parallel to a fixed in-plane axis. Each tile may have a width that is narrow (e.g. 0.2 to 5 mm), and equal to an integer multiple of a lengthwise groove pitch to avoid or reduce ineffective fragmented cube corners along the tile edge. Each array may have a plane of cant and a primary plane of entrance angularity, and the primary planes of entrance angularity for the multiple tiles may be more evenly distributed in azimuthal angle than the planes of cant.

    Microtiled prismatic cube corner articles
    3.
    发明授权
    Microtiled prismatic cube corner articles 有权

    公开(公告)号：US09703023B2

    公开(公告)日：2017-07-11

    申请号：US14777037

    申请日：2014-03-13

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Kenneth L. Smith ,  Todd A. Ballen ,  Nelson D. Sewall

    IPC: G02B5/124

    CPC classification number: G02B5/124

    Abstract: Cube corner articles such as retroreflective sheeting utilize multiple cube corner arrays in a tiled configuration, each tile containing one array of canted cube corner elements. The tiles may be long and narrow, and the array in each of at least two or three adjacent tiles, or even in every tile, may include at least one lengthwise groove that is parallel to an edge of the tile and parallel to a fixed in-plane axis. Each tile may have a width that is narrow (e.g. 0.2 to 5 mm), and equal to an integer multiple of a lengthwise groove pitch to avoid or reduce ineffective fragmented cube corners along the tile edge. Each array may have a plane of cant and a primary plane of entrance angularity, and the primary planes of entrance angularity for the multiple tiles may be more evenly distributed in azimuthal angle than the planes of cant.

    Sign to vehicle identification system
    7.
    发明授权
    Sign to vehicle identification system 有权

    公开(公告)号：US10339804B2

    公开(公告)日：2019-07-02

    申请号：US15540891

    申请日：2015-12-30

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Jeffrey D. Janovec ,  Kenneth L. Smith ,  Michael R. Duoos ,  Todd A. Ballen ,  Travis L. Potts ,  James Howard ,  Thomas J. Dahlin

    IPC: G08G1/0962 ,  G06K9/00 ,  G08G1/0967 ,  G08G1/095

    Abstract: Disclosed is an identification system to improve safety on roads and allow for the driver or for the vehicle itself, if it is autonomous or semi-autonomous, to have readable and useful information about road signs, roadways, and adjacent roadway information. The disclosed identification system comprises a marker with marker communication information that can be read by a vehicle information system to provide information to the vehicle. Information that the marker communication information may convey would allow the vehicle information system to detect or recognize, or both detect and recognize critical road sign, roadway information, and adjacent roadway information. Then, the vehicle information system could respond to the information received from the marker communication information.

    MICROTILED PRISMATIC CUBE CORNER ARTICLES
    8.
    发明申请
    MICROTILED PRISMATIC CUBE CORNER ARTICLES 有权
    微型真空窑角文章

    公开(公告)号：US20160033694A1

    公开(公告)日：2016-02-04

    申请号：US14777037

    申请日：2014-03-13

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Kenneth L. Smith ,  Todd A. Ballen ,  Nelson D. Sewall

    IPC: G02B5/124

    CPC classification number: G02B5/124

    Abstract: Cube corner articles such as retroreflective sheeting utilize multiple cube corner arrays in a tiled configuration, each tile containing one array of canted cube corner elements. The tiles may be long and narrow, and the array in each of at least two or three adjacent tiles, or even in every tile, may include at least one lengthwise groove that is parallel to an edge of the tile and parallel to a fixed in-plane axis. Each tile may have a width that is narrow (e.g. 0.2 to 5 mm), and equal to an integer multiple of a lengthwise groove pitch to avoid or reduce ineffective fragmented cube corners along the tile edge. Each array may have a plane of cant and a primary plane of entrance angularity, and the primary planes of entrance angularity for the multiple tiles may be more evenly distributed in azimuthal angle than the planes of cant.

    Abstract translation: 诸如回归反射片之类的立方角形物品采用平铺配置中的多个立体角阵列，每个瓦片包含一个倾斜立方角元件阵列。 瓦片可以是长而窄的，并且在至少两个或三个相邻的瓦片中的每一个中，或甚至在每个瓦片中的阵列可以包括平行于瓦片的边缘并平行于固定的瓦片的至少一个纵向凹槽 平面轴。 每个瓦片可以具有窄（例如0.2至5mm）的宽度，并且等于纵向凹槽间距的整数倍，以避免或减少沿着瓦片边缘的无效碎片立方角。 每个阵列可以具有倾斜平面和入射角度的主平面，并且用于多个瓦片的入射角度的主平面可以以比平面的方位角更均匀地分布在方位角。

    Sign to vehicle identification system
    10.
    发明授权
    Sign to vehicle identification system 有权

    公开(公告)号：US10586446B2

    公开(公告)日：2020-03-10

    申请号：US16442728

    申请日：2019-06-17

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Jeffrey D. Janovec ,  Kenneth L. Smith ,  Michael R. Duoos ,  Todd A. Ballen ,  Travis L. Potts ,  James Howard ,  Thomas J. Dahlin

    IPC: G08G1/0962 ,  G06K9/00 ,  G08G1/095 ,  G08G1/0967

    Abstract: Disclosed is an identification system to improve safety on roads and allow for the driver or for the vehicle itself, if it is autonomous or semi-autonomous, to have readable and useful information about road signs, roadways, and adjacent roadway information. The disclosed identification system comprises a marker with marker communication information that can be read by a vehicle information system to provide information to the vehicle. Information that the marker communication information may convey would allow the vehicle information system to detect or recognize, or both detect and recognize critical road sign, roadway information, and adjacent roadway information. Then, the vehicle information system could respond to the information received from the marker communication information.

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