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公开(公告)号：US20220269917A1
公开(公告)日：2022-08-25
申请号：US17654499
申请日：2022-03-11
发明人： Michael A. McCoy , Anne C. Gold , Silvia Geciova-Borovova Guttmann , Glenn E. Casner , Timothy J. Gardner , Steven H. Kong , Gautam Singh , Jonathan T. Kahl , Nathan J. Anderson , Catherine L. Aune , Caroline M. Ylitalo , Britton G. Billingsley , Muhammad J. Afridi , Kui Chen-Ho , Travis L. Potts , Robert W. Shannon , Guruprasad Somasundaram
摘要： Optical articles including a spatially defined arrangement of a plurality of data rich retroreflective elements, wherein the plurality of retroreflective elements comprise retroreflective elements having at least two different retroreflective properties and at least two different optical contrasts with respect to a background substrate when observed within an ultraviolet spectrum, a visible spectrum, a near-infrared spectrum, or a combination thereof.
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12.发明申请公开(公告)号：US20220266555A1
公开(公告)日：2022-08-25
申请号：US17733286
申请日：2022-04-29
发明人： Drew J. Buoni
摘要： An article, including a transparent sheet having a first side with a structured surface The structured surface includes microprisms thereon, the microprisms being part of a microprism array on the structured surface. Each one of the microprisms are part of adjacent pairs of the microprisms, such that for each one of the adjacent pairs: the first microprism has a first lateral face, a second lateral face, and a third lateral face, the second microprism has a first lateral face, a second lateral face, and a third lateral face, and there is a continuous surface transition with a maintenance of surface continuity between the second lateral face of the first microprism and the third lateral face of the second microprism, without the presence of a seam, ridge, gap or tooling line.
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公开(公告)号：US20220082737A1
公开(公告)日：2022-03-17
申请号：US17429117
申请日：2020-02-04
发明人： Chieh-Wen CHEN
摘要： Provided herein is flexible retroreflective sheeting that includes an emboss layer having retroreflective elements, a backing layer and/or metallized layer in contact with the retroreflective elements, and an interleaf layer sandwiched between two adhesive layers. The tensile and color properties of the layers of the construction allow the sheeting to be particularly useful as a label for articles, e.g., traffic safety devices, subject to crushing or bending. Also provided are methods and articles including the provided sheeting.
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14.发明申请公开(公告)号：US20220063219A1
公开(公告)日：2022-03-03
申请号：US17298821
申请日：2020-09-28
发明人： Drew J. Buoni
摘要： Method of manufacturing articles, including providing a substrate having a surface, forming first and second sets of first and second grooves in the surface, respectively, the first grooves parallel to each other along a same first direction across the surface and each of the first grooves including a repeating interleaved pattern of at least two first zones and at least two second zones and a maximum depth of the first zones greater than a maximum depth of the second zones, and the second grooves parallel to each other along a same second direction across the surface, the second direction being substantially perpendicular to the first direction, the second grooves passing through second zones of the first grooves, where a groove pattern is thereby formed on the surface, the groove pattern including microprisms. Articles including a substrate surface with such groove patterns or inverted groove patterns including microprisms or inverted microprisms.
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公开(公告)号：US11253933B2
公开(公告)日：2022-02-22
申请号：US16485032
申请日：2018-02-05
摘要： A new technique for making cube corner elements that involves end milling is used in the fabrication of cube corner elements having non-orthogonal dihedral angles and dihedral angle errors, and arrays of such cube corner elements. A given optical face of a cube corner element may be a compound face with two constituent faces. In some cases, the constituent faces may be parallel and coplanar such that a given dihedral angle error pertains to the entire optical face, while in other cases, the two constituent faces may not be parallel, and may be associated with different dihedral angle errors.
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16.发明申请公开(公告)号：US20210364679A1
公开(公告)日：2021-11-25
申请号：US17043974
申请日：2019-05-08
申请人： AUDI AG
摘要： The invention relates to a reflector for a vehicle, which includes a main body having a plurality of reflection prisms arranged next to each other for each reflecting light. Each reflection prism has a reflection direction along which the reflection prism reflects the light. The main body has first reflection prisms having a first reflection direction and second reflection prisms having a second reflection direction different from the first reflection direction. The second reflection prisms form at least one symbol.
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公开(公告)号：US20210311381A1
公开(公告)日：2021-10-07
申请号：US17275633
申请日：2019-09-11
申请人： MirraViz, Inc.
摘要： The disclosed technology generally relates to displays, and more particularly to projection screens configured to display images with increased brightness and improved contrast and uniformity by using optical layers to control the direction and shape of the return light profiles. The disclosed technology comprises an optical layer configured such that incident light from a light source is directed towards specific positions for all locations on the reflective or transmissive display medium, and a light profile shaping optical layer configured to shape an intensity distribution of light reflected or transmitted from projection screen, prior to displaying the image to a viewer. The direction controlling optical layer and the light profile shaping optical layer may be combined into a single optical medium.
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公开(公告)号：US11072279B1
公开(公告)日：2021-07-27
申请号：US16403260
申请日：2019-05-03
申请人： James C. Bates
发明人： James C. Bates
摘要： A reflective warning device for warning oncoming traffic of a stalled vehicle in a road, having a supporting member attachable to a stalled vehicle to extend outwardly there from when the device is attached to the vehicle, and a cylindrical display element mounted on the supporting member and having a reflective surface facing oncoming traffic to indicate the presence of a stalled vehicle to oncoming traffic. The device is storable conveniently in a vehicle for use when needed should an emergency arise.
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公开(公告)号：US20210165141A1
公开(公告)日：2021-06-03
申请号：US17153770
申请日：2021-01-20
申请人： Apple Inc.
IPC分类号： G02B5/124 , G01S17/74 , G01S7/481 , H01Q1/32 , G01S13/75 , H01Q15/18 , G02B5/128 , G08G1/095 , G08G1/0962 , G02B5/13 , B60R13/10 , G08G1/017 , G08G1/16 , H01Q15/14 , G01S17/931 , G01S17/06 , G05D1/02
摘要： A retroreflector system including an outer body panel coupled to a vehicle, wherein the outer body panel is configured to allow a radar signal originating from an external radar device to pass through the outer body panel. The retroreflector system also includes a plurality of retroreflectors embedded in the vehicle, where the plurality of retroreflectors is configured to reflect the signal to the external signal source as a reflected signal, and where the plurality of retroreflectors is configured to have a peak reflectivity for a radar wavelength range or a light detection and ranging (lidar) wavelength range.
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公开(公告)号：US11001979B2
公开(公告)日：2021-05-11
申请号：US16537275
申请日：2019-08-09
发明人： James E. Retterath
摘要： A two-layer retroreflective article construction is enabled that produces higher wide-entrance-angle performance for signs and pavement markings. A single-layer overlay is enabled for existing signs and pavement markers that improve their entrance angle performance. Materials used in the construction of an article or an overlay are transparent to radiation in the range of 400 to 1000 nanometers and utilize TIR (total internal reflection). Minimum performance specifications are proposed that extend sign sheeting retroreflectivity specifications to entrance angles of 60 degrees. An innovative traffic sign design is enabled that increases the positioning performance of safety systems and automated navigation systems.
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