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    In-Coupler For Near-Eye Display Waveguide Combiners
    12.
    发明申请
    In-Coupler For Near-Eye Display Waveguide Combiners 有权

    公开(公告)号：US20240393517A1

    公开(公告)日：2024-11-28

    申请号：US18674737

    申请日：2024-05-24

    Applicant: Meta Materials Inc.

    Inventor： Ehsan Alimohammadian ,  Milad Khoshnegar Shahrestani

    IPC: F21V8/00

    Abstract: A display and waveguide system includes an in-coupler, an out-coupler, a light engine, and a waveguide core. The in-coupler is a combination of a refractive element (for example, an angled microfacet) and a diffractive element (for example, a grating). This microfacet, which uses refraction to change the light direction, is combined with the grating, which uses diffraction to change the light direction, for a combination that enables a large steering angle with high-efficiency coupling. The in-coupler structure in one example includes a layer of dielectric material, into which the refractive and diffractive elements are embossed using a nanoimprinting stamp. The embossed dielectric surface can be covered with a protective layer of protective material.

    Separators For Lithium Batteries
    13.
    发明公开
    Separators For Lithium Batteries 审中-公开

    公开(公告)号：US20240304942A1

    公开(公告)日：2024-09-12

    申请号：US18596588

    申请日：2024-03-05

    Applicant: Meta Materials Inc.

    Inventor： Chandrakant C. Patel ,  Steven A. Carlson

    IPC: H01M50/403 ,  H01M4/133 ,  H01M4/587 ,  H01M50/426 ,  H01M50/446 ,  H01M4/02

    CPC classification number: H01M50/403 ,  H01M4/133 ,  H01M4/587 ,  H01M50/426 ,  H01M50/446 ,  H01M2004/021

    Abstract: A separator for a lithium battery is a coating of an inorganic oxide (for example, aluminum oxide) and an organic polymer (for example, polyvinylidene difluoride (PVdF)). In a method, the separator is formed on an electrode material layer (for example, graphite) of an anode electrode. In a first pre-wetting step, a first liquid comprising a first volatile liquid is applied to the electrode material such that pores in the material are filled. In a second step, a second liquid is applied over the first liquid. The second liquid includes inorganic oxide particles and the organic polymer dispersed in a second volatile liquid. The first and second volatile liquids are then substantially removed (for example, by evaporation in a drying oven) thereby leaving the separator coating on the electrode material of the anode, and leaving the pores filled with a gel or solid electrolytic polymer material.

    Electromagnetic Wave Director
    17.
    发明公开
    Electromagnetic Wave Director 审中-公开

    公开(公告)号：US20240079791A1

    公开(公告)日：2024-03-07

    申请号：US18244196

    申请日：2023-09-08

    Applicant: Meta Materials Inc.

    Inventor： Ragip Pala ,  Jonathan Waldern ,  Efthymios Kallos ,  Milan Momcilo Popovich ,  George Palikaras

    IPC: H01Q15/00 ,  H01Q19/10

    CPC classification number: H01Q15/0086 ,  H01Q19/10

    Abstract: There is provided an electromagnetic wave director comprising a substrate supporting a diffractive element formed from a two-dimensional array of subwavelength subcells deposited onto said substrate, said diffractive element operative to direct an electromagnetic wave signal generated by at least one electromagnetic wave transmitter to at least one electromagnetic receiver disposed within at least one coverage zone lying outside the line of sight of the transmitter, said diffractive element having metasurface prescription for modifying the amplitude and phase of incident electromagnetic wavefronts on each subwavelength subcell. There is also provided associated systems and methods.

    Banknote, identification card, passport, check, security document, government stamp, vehicle registration, or package, with security feature
    18.
    外观设计
    Banknote, identification card, passport, check, security document, government stamp, vehicle registration, or package, with security feature 有权

    公开(公告)号：USD1015424S1

    公开(公告)日：2024-02-20

    申请号：US29809722

    申请日：2021-09-29

    Applicant: Meta Materials Inc.

    Designer： Clinton Kenneth Landrock ,  Hsin Yuan Chang

    Abstract: FIG. 1 is a front view of the security feature shown removed from the banknote, identification card, passport, check, security document, government stamp vehicle registration, or package, with security feature showing our new design as viewed from a first angle;
    FIG. 2 is a front view thereof, as viewed from a second angle that is different from the first angle;
    FIG. 3 is a front view thereof, as viewed from a third angle that is different from the first and second angles;
    FIG. 4 is a front view of a banknote with security feature showing our new design as viewed from a first angle;
    FIG. 5 is a front view thereof, as viewed from a second angle that is different from the first angle;
    FIG. 6 is a front view thereof, as viewed from a third angle that is different from the first and second angles;
    FIG. 7 is a front view of an identification card with security feature showing our new design as viewed from a first angle;
    FIG. 8 is a front view thereof, as viewed from a second angle that is different from the first angle;
    FIG. 9 is a front view thereof, as viewed from a third angle that is different from the first and second angles;
    FIG. 10 is a front view of a passport with security feature showing our new design as viewed from a first angle;
    FIG. 11 is a front view thereof, as viewed from a second angle that is different from the first angle;
    FIG. 12 is a front view thereof, as viewed from a third angle that is different from the first and second angles;
    FIG. 13 is a front view of a government stamp with security feature showing our new design as viewed from a first angle;
    FIG. 14 is a front view thereof, as viewed from a second angle that is different from the first angle;
    FIG. 15 is a front view thereof, as viewed from a third angle that is different from the first and second angles;
    FIG. 16 is a front view of a vehicle registration with security feature showing our new design as viewed from a first angle;
    FIG. 17 is a front view thereof, as viewed from a second angle that is different from the first angle;
    FIG. 18 is a front view thereof, as viewed from a third angle that is different from the first and second angles;
    FIG. 19 is a front view of a package with security feature showing our new design as viewed from a first angle;
    FIG. 20 is a front view thereof, as viewed from a second angle that is different from the first angle; and,
    FIG. 21 is a front view thereof, as viewed from a third angle that is different from the first and second angles.
    The appearance of the transitional image transitions between the images shown in FIGS. 1-3, 4-6, 7-9, 10-12, 13-15, 16-18, and 19-21, respectively. The process or period in which one image transitions to another image forms no part of the claimed design.
    The broken lines in the figures illustrate portions of the security feature and environment that forms no part of the claimed design.

    Banknote, identification card, passport, check, security document, government stamp, vehicle registration or package, with security feature
    19.
    外观设计
    Banknote, identification card, passport, check, security document, government stamp, vehicle registration or package, with security feature 有权

    公开(公告)号：USD1014621S1

    公开(公告)日：2024-02-13

    申请号：US29809721

    申请日：2021-09-29

    Applicant: Meta Materials Inc.

    Designer： Clinton Kenneth Landrock ,  Hsin Yuan Chang

    Abstract: FIG. 1 is a front view of the security feature shown removed from the banknote, identification card, passport, check, security document, government stamp, vehicle registration, or package, with security feature showing our new design as viewed from a first angle;
    FIG. 2 is a front view thereof, as viewed from a second angle that is different from the first angle;
    FIG. 3 is a front view thereof, as viewed from a third angle that is different from the first and second angles;
    FIG. 4 is a front view of a banknote with security feature showing our new design as viewed from a first angle;
    FIG. 5 is a front view thereof, as viewed from a second angle that is different from the first angle;
    FIG. 6 is a front view thereof, as viewed from a third angle that is different from the first and second angles;
    FIG. 7 is a front view of an identification card with security feature showing our new design as viewed from a first angle;
    FIG. 8 is a front view thereof, as viewed from a second angle that is different from the first angle;
    FIG. 9 is a front view thereof, as viewed from a third angle that is different from the first and second angles;
    FIG. 10 is a front view of a passport with security feature showing our new design as viewed from a first angle;
    FIG. 11 is a front view thereof, as viewed from a second angle that is different from the first angle;
    FIG. 12 is a front view thereof, as viewed from a third angle that is different from the first and second angles;
    FIG. 13 is a front view of a government stamp with security feature showing our new design as viewed from a first angle;
    FIG. 14 is a front view thereof, as viewed from a second angle that is different from the first angle;
    FIG. 15 is a front view thereof, as viewed from a third angle that is different from the first and second angles;
    FIG. 16 is a front view of a vehicle registration with security feature showing our new design as viewed from a first angle;
    FIG. 17 is a front view thereof, as viewed from a second angle that is different from the first angle;
    FIG. 18 is a front view thereof, as viewed from a third angle that is different from the first and second angles;
    FIG. 19 is a front view of a package with security feature showing our new design as viewed from a first angle;
    FIG. 20 is a front view thereof, as viewed from a second angle that is different from the first angle; and,
    FIG. 21 is a front view thereof, as viewed from a third angle that is different from the first and second angles.
    The appearance of the transitional image transitions between the images shown in FIGS. 1-3, 4-6, 7-9, 10-12, 13-15, 16-18, and 19-21, respectively. The process or period in which one image transitions to another image forms no part of the claimed design.
    The broken lines in the figures illustrate portions of the security feature and environment that forms no part of the claimed design.

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