Multi-degree of freedom vibration isolator

    公开(公告)号:US11187047B1

    公开(公告)日:2021-11-30

    申请号:US16004854

    申请日:2018-06-11

    Abstract: A multi-axis isolator configured to isolate a payload from unwanted vibrations and shocks includes a housing, at least one pair of radial isolators in the housing, and an axial isolator in the housing. Each radial isolator includes an elastomer dome, a chamber at least partially defined by the elastomer dome, and a fluid in the chamber. The multi-axis isolator also includes a fluid track placing the chambers of the radial isolators in fluid communication with each other. The axial isolator includes an elastomer dome, a backpressure membrane, a primary chamber, a backpressure chamber, a fluid in the primary and backpressure chambers, a conduit placing the primary chamber in fluid communication with the backpressure chamber. The multi-axis isolator also includes a shaft configured to be connected to the payload. The pair of radial isolators and the axial isolator are coupled to the shaft.

    SOLID STATE ELECTRICALLY VARIABLE-FOCAL LENGTH LENS

    公开(公告)号:US20210364884A1

    公开(公告)日:2021-11-25

    申请号:US17190031

    申请日:2021-03-02

    Abstract: A solid state electrically variable focal length lens includes a plurality of concentric rings of electro-optical material, wherein the electro-optical material comprises any material of a class of hydrogen-doped phase-change metal oxide and wherein each respective concentric ring further includes a transparent resistive sheet on a first face of the respective concentric ring, wherein the transparent resistive sheet extends along the first face, and a first voltage coupled between a first end and a second end of the transparent resistive sheet, wherein the first voltage may be varied to select an optical beam deflection angle.

    Active Vivaldi antenna
    65.
    发明授权

    公开(公告)号:US11183760B2

    公开(公告)日:2021-11-23

    申请号:US16554260

    申请日:2019-08-28

    Inventor: Carson R. White

    Abstract: An antenna system having a Vivaldi antenna configured to be impedance matched to antenna impedance Za at and above but not below a frequency fc; a Field-Effect-Transistor buffer coupled to the Vivaldi antenna, the length of the coupling between the antenna terminals and the buffer being of a distance much less than a wavelength at frequency fc, the buffer configured to present a high impedance at frequencies substantially

    Dissolving droplet microfluidic particle assembly devices and methods, and particle assemblies obtained therefrom

    公开(公告)号:US11167287B2

    公开(公告)日:2021-11-09

    申请号:US16411058

    申请日:2019-05-13

    Abstract: Some variations provide a device for assembling a plurality of particles into particle assemblies, comprising: (a) a microfluidic droplet-generating region; (b) a first inlet to the droplet-generating region, configured to feed a first fluid containing particles and a solvent for the particles; (c) a second inlet to the droplet-generating region, configured to feed a second fluid that is not fully miscible with the first fluid; (d) a droplet outlet from the droplet-generating region, configured to withdraw droplets of the first fluid dispersed in the second fluid; and (e) a droplet-dissolving region configured to remove solvent from the droplets, thereby forming particle assemblies. Some variations also provide an assembly of nanoparticles, wherein the assembly has a volume from 1 μm3 to 1 mm3, a packing fraction from 20% to 100%, and/or an average relative surface roughness less than 1%, wherein the assembly is not disposed on a substrate.

    Back-to-back dual band p-CB-n
    68.
    发明授权

    公开(公告)号:US11158754B1

    公开(公告)日:2021-10-26

    申请号:US14455820

    申请日:2014-08-08

    Abstract: A structure is disclosed. The structure contains a second detector disposed above a first detector, wherein the first detector contains a first absorber layer, a first barrier layer disposed above the first absorber layer, a first contact layer disposed above the first barrier layer, and wherein the second detector contains a second contact layer disposed above the first contact layer, a second barrier layer disposed above the second contact layer, a second absorber layer disposed above the second barrier layer.

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