公开(公告)号：US07176827B2

公开(公告)日：2007-02-13

申请号：US10513810

申请日：2003-05-06

申请人： Roger Appleby ,  Rupert Nicholas Anderton ,  Peter Russell Coward ,  Alan Harold Lettington

发明人： Roger Appleby ,  Rupert Nicholas Anderton ,  Peter Russell Coward ,  Alan Harold Lettington

IPC分类号： G01S13/00

CPC分类号： H01Q15/244 ,  G01S13/89

摘要： An apparatus for redirecting radiation including a polarization dependent reflector and an optical component able to transform the polarisation of radiation as it passes through the component. Radiation having a first polarisation component impinging upon the reflector from a source is reflected towards a scene area. Radiation not having this polarisation component passes through the reflector. The radiation having the first polarisation is then transmitted towards a scene via the optical component. As the radiation passes via the optical component, reflects back from the scene and passes again via the optical component, the polarisation is changed to state where it can now pass through the polarisation dependent reflector. The apparatus allows a scene to be illuminated as if the illuminator were positioned at the viewpoint of an imaging system, and so aids uniform illumination of the scene. The apparatus is particularly suited to mm-wave systems, wherein the reflector may comprise a parallel wire grid polarizer, and the optical component may comprise a quarter-wave plate.

摘要翻译： 一种用于重定向辐射的装置，包括偏振相关反射器和能够在辐射穿过部件时变换辐射的偏振的光学部件。 具有从源极入射到反射器上的第一偏振分量的辐射被反射到场景区域。 不具有该偏振分量的辐射通过反射器。 然后，具有第一偏振的辐射经由光学部件被发送到场景。 当辐射通过光学部件时，从场景反射回来并经由光学部件再次通过，偏振改变为现在可以通过偏振相关反射器的状态。 该装置允许场景被照亮，如同照明器位于成像系统的观点，因此有助于场景的均匀照明。 该装置特别适用于mm波系统，其中反射器可以包括平行线栅偏振器，并且光学部件可以包括四分之一波片。

公开(公告)号：US20080211724A1

公开(公告)日：2008-09-04

申请号：US11839761

申请日：2007-08-16

申请人： Rupert Nicholas Anderton ,  Paul Antony Manning ,  Kevin James Palmer

发明人： Rupert Nicholas Anderton ,  Paul Antony Manning ,  Kevin James Palmer

IPC分类号： G01R29/08

CPC分类号： G01V8/005

摘要： The detection device that can be used for detecting objects behind clothing etc including a dielectric lens and a receive element sensitive to millimetre wave radiation. Prior art systems produce an image of a scene usually using scanning optics. This can be large and expensive. The present invention instead takes spot readings from different parts of a scene without building up an image. The spot readings are processed, and an indication given to a user if certain characteristics of the readings are observed. Typical characteristics used are the differences in absolute received power level, and the power level at different polarisations. Such characteristics are typically present is an object of interest is in the scene. Also disclosed are various methods of altering the received beam to get readings from different areas from the scene, such as changing the beam width, or beam angle.

摘要翻译： 可用于检测服装等物体的检测装置，包括电介质透镜和对毫米波辐射敏感的接收元件。 现有技术的系统通常使用扫描光学器件产生场景的图像。 这可能是大而昂贵的。 本发明改为从场景的不同部分获取斑点读数而不建立图像。 处理斑点读数，并且如果观察到读数的某些特征，则给予用户指示。 使用的典型特征是绝对接收功率水平的差异和不同极化处的功率水平。 这种特征通常存在是感兴趣的对象在场景中。 还公开了改变接收光束以从场景的不同区域读取数据的各种方法，例如改变光束宽度或光束角度。

公开(公告)号：US07271899B2

公开(公告)日：2007-09-18

申请号：US10524596

申请日：2003-08-21

申请人： Rupert Nicholas Anderton ,  Paul Antony Manning ,  Kevin James Palmer

发明人： Rupert Nicholas Anderton ,  Paul Antony Manning ,  Kevin James Palmer

IPC分类号： G01J4/00

CPC分类号： G01V8/005

摘要： A detection device that can be used for detecting objects behind clothing etc including a dielectric lens and a receive element sensitive to millimetre wave radiation. Prior art systems produce an image of a scene usually using scanning optics. This can be large and expensive. The present invention instead take spot readings from different parts of a scene without building up an image. The spot readings are processed, and an indication given to a user if certain characteristics of the readings are observed. Typical characteristics used are the differences in absolute received power level, and the power level at different polarisations. Such characteristics are typically present is an object of interest is in the scene. Also disclosed are various methods of altering the received beam to get readings from different areas from the scene, such as changing the beam width, or beam angle.

摘要翻译： 一种检测装置，其可用于检测服装等后面的物体，包括介电透镜和对毫米波辐射敏感的接收元件。 现有技术的系统通常使用扫描光学器件产生场景的图像。 这可能是大而昂贵的。 本发明改为从场景的不同部分进行斑点读取而不建立图像。 处理斑点读数，并且如果观察到读数的某些特征，则给予用户指示。 使用的典型特征是绝对接收功率水平的差异和不同极化处的功率水平。 这种特征通常存在是感兴趣的对象在场景中。 还公开了改变接收光束以从场景的不同区域读取数据的各种方法，例如改变光束宽度或光束角度。