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    Collimator for providing constant collimation effect
    21.
    发明授权
    Collimator for providing constant collimation effect 有权

    公开(公告)号：US10102937B2

    公开(公告)日：2018-10-16

    申请号：US15751022

    申请日：2016-08-24

    Applicant: THE SECRETARY OF STATE FOR DEFENCE

    Inventor： Morgan Gregory Carpenter ,  Robert Michael Moss

    IPC: G21K1/04 ,  G21K1/087

    Abstract: A collimator taking the form of a prolate spheroid (40) comprising radiation attenuating material and featuring a twisted slit comprising radiation transmissive material. The twisted slit featuring first (43) and second (44) apertures arranged such that for each entrance point in one of the apertures there is a direct pathway through the major axis ‘B’ of the prolate spheroid (40), at a pre-determined angle, to a point in the other aperture, such that a compound aperture is formed. For each compound aperture the length of the direct pathway through the prolate spheroid (40) is constant. Rotation of the collimator about the major axis ‘B’, relative to a stationary point at the first aperture (43), steers in angle the compound aperture through the collimator from said stationary point. Such an arrangement allows radiation from a source positioned at said point to be collimated into a beam, the resultant beam being scanned in angle, and the resultant collimation effect being constant across the angular range of the scan.

    BODY-WEARABLE ANTENNA SYSTEM
    22.
    发明申请
    BODY-WEARABLE ANTENNA SYSTEM 审中-公开

    公开(公告)号：US20180131080A1

    公开(公告)日：2018-05-10

    申请号：US15572308

    申请日：2016-06-03

    Applicant: THE SECRETARY OF STATE FOR DEFENCE

    Inventor： STEPHEN JOHN BOYES

    IPC: H01Q1/27 ,  H01Q3/34 ,  H01Q21/06

    CPC classification number: H01Q1/273 ,  H01Q3/34 ,  H01Q21/062 ,  H01Q21/067

    Abstract: A body-wearable antenna system is described that comprises at least two antenna elements (2, 4) arranged to be mountable in a substantially equi-spaced distributed array around a user's body. Each antenna element is a directional type antenna and the antenna system is configurable such that when worn the antenna elements operate in phase to deliver a combined, higher gain, omnidirectional performance radiating away from the user's body, compared to one or more conventional body-worn omnidirectional antennas. The antenna system can operate in transmit and receive. Each antenna element may be a planar inverted-F antenna (PIFA) housed in a protective radome (3, 5). Each PIFA may feature at least one slot cut into the radiating top plate or at least one parasitic radiator, or a combination of both, to allow operation within distinct frequency bands and with predetermined impedance bandwidth.

    A ROLLER DOOR SYSTEM
    23.
    发明申请
    A ROLLER DOOR SYSTEM 有权
    滚筒门系统

    公开(公告)号：US20160258212A1

    公开(公告)日：2016-09-08

    申请号：US15032063

    申请日：2014-10-23

    Applicant: THE SECRETARY OF STATE FOR DEFENCE

    Inventor： DUNCAN GODFREY MERVYN THOMPSON

    IPC: E06B9/56 ,  E04H15/58 ,  E06B9/58 ,  E06B9/64 ,  E06B9/60

    CPC classification number: E06B9/66 ,  A62C2/10 ,  A62C2/248 ,  E04H15/58 ,  E06B9/56 ,  E06B9/581 ,  E06B9/60 ,  E06B9/64 ,  E06B9/68

    Abstract: A roller door system (100) particularly for opening and closing a doorway (120) defined in the wall of a lightweight structure (110) such as a marquee, hangar, field hospital, emergency shelter and the like. The door system comprises a rollable door (150) secured, in use, along one edge of the doorway (152); a roller (140) for rolling and unrolling the rollable door about the roller; an opening mechanism and a closing mechanism for controlling the deployment of the rollable door by translating the roller across the doorway; and reusable sealing means (135, 136, 155, 156) for sealing between the lateral margins of the rollable door and the doorway; characterised in that the rollable door comprises a plurality of collapsible hoses (165, 166) connected to a pressurised fluid power system (160, 161, 163) such that in use a positive pressure applied to the fluid power system causes the rollable door to unroll from the roller and controls the deployment of the rollable door.

    Abstract translation: 一种辊门系统（100），特别是用于打开和关闭限定在轻型结构（110）的壁中的门（120），所述轻质结构（110）如大厅，机库，现场医院，紧急避难所等。 门系统包括在使用中沿着门口（152）的一个边缘固定的可滚动门（150）。 用于滚动并滚动滚轮的滚筒（140）; 打开机构和关闭机构，用于通过使辊跨越门口来控制可滚动门的展开; 以及可重复使用的密封装置（135,136,155,156），用于在可滚动门的侧边缘和门口之间进行密封; 其特征在于，所述可滚动门包括连接到加压流体动力系统（160,161,163）的多个可折叠软管（165,166），使得在使用中施加到所述流体动力系统的正压使所述可滚动门展开 从辊子和控制可滚动门的部署。

    BLUNT IMPACT INJURY MODEL SYSTEM
    24.
    发明申请
    BLUNT IMPACT INJURY MODEL SYSTEM 审中-公开
    BLUNT IMPACT伤害模型系统

    公开(公告)号：US20150369694A1

    公开(公告)日：2015-12-24

    申请号：US14764265

    申请日：2014-01-31

    Applicant: THE SECRETARY OF STATE FOR DEFENCE

    Inventor： MICHAEL STUART NEALE ,  LUCY SARAH ALLANSON-BAILEY

    IPC: G01M7/08 ,  G01L5/00

    CPC classification number: G01M7/08 ,  G01L5/00 ,  G01L5/0052 ,  G09B23/32

    Abstract: The present application is concerned with a system for assessing injury risk or damage to an object in response to a blunt impact, and especially skull fracture risk beneath a helmet in response to a blunt impact. The application is also concerned with the use of a force sensor for evaluating the response of materials for use in a helmet shell to a blunt impact.

    Abstract translation: 本申请涉及一种用于评估受到钝性冲击的伤害风险或对物体的损害的系统，特别是对头盔的头骨骨折风险，以应对钝的影响。 该应用还涉及使用力传感器来评估用于头盔外壳中的材料对钝影的响应。

    Bistable nematic liquid crystal device
    26.
    发明申请
    Bistable nematic liquid crystal device 有权
    双稳向列型液晶装置

    公开(公告)号：US20010028426A1

    公开(公告)日：2001-10-11

    申请号：US09740260

    申请日：2000-12-20

    Applicant: The Secretary of State for Defence

    Inventor： Guy Peter Bryan-Brown ,  Carl Vernon Brown ,  John Clifford Jones

    IPC: G02F001/1337

    CPC classification number: G02F1/13378 ,  G02F1/139 ,  G02F1/1391 ,  G02F1/1392 ,  G02F1/1396 ,  G02F2001/133765

    Abstract: A bistable nematic liquid crystal device cell is provided with a surface alignment grating on at least one cell wall and a surface treatment on the other wall. Such treatment may be a homeotropic alignment or a planar alignment with or without an alignment direction, and zero or a non zero pretilt. The surface profile on the monograting is asymmetric with its groove height to width selected to give approximately equal energy within the nematic material in its two allowed alignment arrangements. The monograting may be formed by a photolithographic process or by embossing of a plastics material. The cell is switched by dc pulses coupling to a flexoelectric coefficient in the material, or by use of a two frequency addressing scheme and a suitable two frequency material. Polarisers either side of the cell distinguish between the two switched states. The cell walls may be rigid or flexible, and are coated with electrode structures, e.g. in row and column format giving an x,y matrix of addressable pixels on the cell.

    Abstract translation: 双稳向列型液晶器件单元在至少一个单元壁上设置有表面对准光栅并在另一个壁上具有表面处理。 这种处理可以是垂直排列或具有或不具有取向方向的平面对准，以及零或非零预倾斜。 在单一研磨中的表面轮廓是不对称的，其槽高度被选择为在其两个允许的对准装置中在向列型材料内产生大致相等的能量。 单晶化可以通过光刻工艺或通过塑料材料的压花形成。 电池通过耦合到材料中的柔性电系数的直流脉冲或通过使用双频寻址方案和合适的两频率材料来切换。 电极的两侧的极化器区分两个切换状态。 细胞壁可以是刚性的或柔性的，并且涂覆有电极结构，例如， 以行和列格式给出单元格上的可寻址像素的x，y矩阵。

    ACOUSTO OPTIC MODULATOR DEVICE FOR LIGHT FREQUENCY ADJUSTMENT
    27.
    发明申请
    ACOUSTO OPTIC MODULATOR DEVICE FOR LIGHT FREQUENCY ADJUSTMENT 有权

    公开(公告)号：US20250138350A1

    公开(公告)日：2025-05-01

    申请号：US18833724

    申请日：2023-01-18

    Applicant: THE SECRETARY OF STATE FOR DEFENCE

    Inventor： Matthew David Himsworth

    IPC: G02F1/11

    Abstract: An Acousto Optic Modulator Device has an Acousto Optic Modulator (AOM) 4 and an actuator controlled angle adjusting mirror, and means to pass light from an input port through the AOM to the adjustable angle mirror and back through the AOM to an output port. The effect of controlling the acoustic frequency in the AOM and the angle of the mirror is to selectively perform fine adjustments to the frequency of inlet laser light, permitting controlled or sudden changes.

    DEVICE AND METHOD FOR TRACKING OBJECTS
    29.
    发明公开
    DEVICE AND METHOD FOR TRACKING OBJECTS 审中-公开

    公开(公告)号：US20230324491A1

    公开(公告)日：2023-10-12

    申请号：US18044087

    申请日：2021-09-16

    Applicant: The Secretary of State for Defence

    Inventor： Paul Richard Roberts

    IPC: G01S1/02 ,  G01S5/00 ,  H04W4/029

    CPC classification number: G01S1/02 ,  G01S5/017 ,  H04W4/029 ,  H04W88/08

    Abstract: A method and tracker for determining the location of an object, such as a parcel or luggage. The tracker periodically transmits a wireless access point beacon comprising SSID (network name) and a MAC address, in accordance with an IEEE 802.11 standard, has a power storage device, and an energy harvesting module. A server monitors data from 3rd party mobile devices regarding the locations of wifi beacons, and the user is informed of the relevant location if the beacon of the tracker is uploaded to the server. When the tracker is moved and/or it comes into range of one of the wireless portable devices, the user is informed of its location. This enables indefinite tracking especially in urban areas, worldwide.

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