公开(公告)号：US06894636B2

公开(公告)日：2005-05-17

申请号：US10032694

申请日：2002-01-02

申请人： Rupert N Anderton ,  Peter R Coward ,  Roger Appleby

发明人： Rupert N Anderton ,  Peter R Coward ,  Roger Appleby

IPC分类号： G01V8/00 ,  G01S13/89 ,  G01V3/12

CPC分类号： G01V8/005

摘要： A system for imaging the contents of containers includes an imager arranged to receive millimetre wave radiation from a reception volume through a receive antenna wherein, in use, the container is moving relative to the receive antenna, the reception volume is positioned such that the relative movement causes the reception volume to move through the container; data from the antenna is recorded as the reception volume moves through the container, and an image of the contents of the container is built up from the recorded data. The system is particularly suitable for imaging containers mounted on vehicles. The imager may advantageously be mounted in a portal, allowing convenient and controllable relative positioning of the container, and allowing the relative speed to be controlled or measured easily. The invention allows 3D or pseudo 3D images to be produced to aid identification of container contents. The invention also includes a method for imaging.

摘要翻译： 用于对容器的内容进行成像的系统包括成像器，其被布置成通过接收天线从接收体积接收毫米波辐射，其中在使用中容器相对于接收天线移动，接收体积被定位成使得相对运动 使接收量移动通过容器; 当接收体积移动通过容器时，来自天线的数据被记录，并且从记录的数据构建容器的内容的图像。 该系统特别适用于安装在车辆上的成像容器。 成像器可以有利地安装在入口中，允许容器的方便和可控的相对定位，并且允许容易地控制或测量相对速度。 本发明允许产生3D或伪3D图像以帮助识别容器内容物。 本发明还包括一种成像方法。

公开(公告)号：US07443560B2

公开(公告)日：2008-10-28

申请号：US11665540

申请日：2005-10-14

申请人： Rupert N Anderton ,  Peter R Coward

发明人： Rupert N Anderton ,  Peter R Coward

IPC分类号： G02B26/08

CPC分类号： G01S3/781 ,  G01S5/16

摘要： A scanning imaging apparatus comprises an optical system including a curved polariser/reflector, a rotatable reflector, a polarisation twisting plate, and a receiver array, wherein a convex reflective element is incorporated in the optical path that acts as a sub-reflector that increases the optical system focal length. It has been found that an increase to the optical focal length in this manner gives a greater 3 dB spot size at the image plane, thus easing design constraints on the receiver array packing density, whilst maintaining a given spatial sampling interval. An additional benefit is that radiation from differing scan locations diverges as it approaches the image plane, which provides more volume in which to position receiver electronics. Focussing of the optical system may be achieved by movement of the sub-reflector.

摘要翻译： 扫描成像装置包括光学系统，该光学系统包括弯曲偏振器/反射器，可旋转反射器，偏振扭转板和接收器阵列，其中凸起的反射元件被结合在光路中，该光路充当副反射器， 光学系统焦距。 已经发现，以这种方式增加光学焦距在图像平面上给出更大的3dB光斑尺寸，从而在保持给定的空间采样间隔的同时减轻对接收器阵列堆积密度的设计约束。 另外的好处是，来自不同扫描位置的辐射在接近图像平面时发散，这提供了更多的体积来定位接收器电子设备。 光学系统的聚焦可以通过子反射器的移动来实现。

公开(公告)号：US07495219B2

公开(公告)日：2009-02-24

申请号：US10560071

申请日：2004-06-11

申请人： Rupert N Anderton ,  Peter R Coward ,  Sean Price

发明人： Rupert N Anderton ,  Peter R Coward ,  Sean Price

IPC分类号： G01J1/00 ,  G01J4/00

CPC分类号： G01S3/789 ,  G01K11/006

摘要： A radiation detection apparatus comprises a radiation detector and a lens arrangement. The lens arrangement comprises a polarising element and an optical corrector. The optical corrector is preferably located between the polarising element and the radiation detector and has at least one surface designed to correct optical aberrations present in the lens arrangement. The optical corrector may be arranged to provide a mechanical support to the polarising element. The optical corrector is arranged to increase a diffraction limited acceptance angle of the apparatus.

摘要翻译： 放射线检测装置包括放射线检测器和透镜装置。 透镜装置包括偏振元件和光学校正器。 光学校正器优选地位于偏振元件和辐射检测器之间，并且具有设计用于校正透镜装置中存在的光学像差的至少一个表面。 光学校正器可以被布置成为偏振元件提供机械支撑。 光学校正器布置成增加设备的衍射受限的接受角。

公开(公告)号：US07777670B2

公开(公告)日：2010-08-17

申请号：US10593485

申请日：2005-03-24

申请人： Peter R Coward ,  Neil A Salmon

发明人： Peter R Coward ,  Neil A Salmon

IPC分类号： G01S13/88 ,  G01S7/35 ,  G01S13/89 ,  H01Q21/00 ,  G01S13/00 ,  H01Q21/06 ,  H01Q13/18 ,  G01V8/00

CPC分类号： G01S13/89 ,  G01S7/024 ,  G01S7/282

摘要： An improved millimeter wave illumination system includes at least one primary source of millimeter wave radiation, a reflecting surface and a baffle comprising a plurality of exit apertures arranged such that at least some of the radiation from the source is reflected from the reflective surface before proceeding to the baffle, characterized in that means are incorporated for generating a plurality of radiation field states within a pre-determined time interval. The baffle, source and reflector are preferably packaged into a container with the exit apertures providing an illumination output. The generation of the plurality of radiation field states provides an illumination at the illuminator output that is less spatially variable when integrated over the pre-determined time interval. Embodiments of the invention show means for generating the plurality of radiation field states including relative movement of the reflective surface, variable positioning of the source with respect to the reflective surface, and including multiple sources within a single system.

摘要翻译： 改进的毫米波照明系统包括至少一个毫米波辐射的主要源，反射表面和挡板，其包括多个出射孔，所述多个出射孔布置成使得来自源的至少一些辐射从反射表面反射， 挡板，其特征在于，装置用于在预定时间间隔内产生多个辐射场状态。 挡板，源和反射器优选地封装在容器中，出口孔提供照明输出。 多个辐射场状态的产生在照明器输出端提供了当在预定时间间隔内积分时在空间上变化较小的照明。 本发明的实施例示出了用于产生包括反射表面的相对运动，源相对于反射表面的可变定位以及在单个系统内包括多个源的多个辐射场状态的装置。

公开(公告)号：US07982656B2

公开(公告)日：2011-07-19

申请号：US10592679

申请日：2005-03-29

申请人： Peter R Coward ,  Neil A Salmon

发明人： Peter R Coward ,  Neil A Salmon

IPC分类号： G01S13/89

CPC分类号： G01V8/005 ,  G01S7/411 ,  G01S13/887 ,  G01S13/89

摘要： A millimeter wave imaging apparatus and method capable of identifying the presence of relatively thin dielectric materials is disclosed. The method involves taking a plurality of millimeter wave images of a scene at different frequencies and analyzing the images at different frequencies to look for frequency dependent effects in the scene. Relatively thin dielectric materials can lead to interference effects which can be detected. In one embodiment the imaging apparatus comprises a millimeter wave imager (2) connected to a processor (16) and at least one variable frequency illumination source (22a . . . d, 24a . . . d). The or each illumination source sweeps the illumination frequency across a reasonably wide bandwidth and the imager captures radiation returned from the scene at a number of different illuminating frequencies.

摘要翻译： 公开了能够识别相对薄的电介质材料的存在的毫米波成像装置和方法。 该方法涉及以不同频率拍摄场景的多个毫米波图像，并以不同频率分析图像以在场景中寻找与频率相关的效果。 相对薄的电介质材料可能会导致可以检测到的干扰效应。 在一个实施例中，成像装置包括连接到处理器（16）和至少一个可变频率照明源（22a ... d，24a ...）的毫米波成像器（2）。 该照明源或每个照明源在相当宽的带宽上扫描照明频率，并且成像器以多个不同的照明频率捕获从场景返回的辐射。