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1. 发明申请

US20050168388A1 Apparatus for redirecting radiation 有权
标题翻译：用于重定向辐射的装置
公开(公告)号：US20050168388A1
公开(公告)日：2005-08-04
申请号：US10513810
申请日：2003-05-06
申请人： Roger Appleby , Rupert Anderton , Peter Coward , Alan Lettington
发明人： Roger Appleby , Rupert Anderton , Peter Coward , Alan Lettington
IPC分类号： G02B27/28 , G01S13/89 , H01Q15/24 , H01Q19/00 , H01Q15/02
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。

2. 发明授权

US07038821B2 Scanning apparatus 失效
标题翻译：扫描仪
公开(公告)号：US07038821B2
公开(公告)日：2006-05-02
申请号：US10484173
申请日：2002-07-22
申请人： Alan Lettington
发明人： Alan Lettington
IPC分类号： G02B26/08 , H01Q19/00
CPC分类号： G02B26/10 , G02B26/0891 , G02B27/28
摘要： A scanning apparatus comprises two rotatable bodies (1, 10 or 40) arranged to rotate in opposite directions. The first body being a polarizer (10) and the second being a mirror (1) or a second polarizer (40). The apparatus is arranged to define an optical path for a polarized beam, wherein the optical path passes through the first body (10), is reflected at the second body (1 or 40), and is reflected by the first body (10) back to the second body (1 or 40) from where it is transmitted or reflected to produce a linear scan. There is also disclosed a scanning system comprising a reflector (1) and an optical wedge (42) containing refractive materials, arranged to counter rotate and arranged so that a beam passing through the optical wedge (42), is reflected by the reflector (1) and passes back through the optical wedge (42) to produce a linear scan.
摘要翻译：扫描装置包括布置成沿相反方向旋转的两个旋转体（1,10或40）。第一主体是偏振器（10），第二主体是反射镜（1）或第二偏振器（40）。该装置被布置成限定用于偏振光束的光路，其中光路穿过第一主体（10）在第二主体（1或40）处被反射，并被第一主体（10）反射回到第二主体（1或40），从其被传送或反射以产生线性扫描。还公开了一种扫描系统，其包括反射器（1）和包含折射材料的光学楔（42），该光学楔（42）布置成反向旋转并布置成使得穿过光楔（42）的光束被反射器（1）反射）并返回通过光楔（42）以产生线性扫描。

3. 发明申请

US20070221847A1 Illumination Method and Apparatus 审中-公开
标题翻译：照明方法和装置
公开(公告)号：US20070221847A1
公开(公告)日：2007-09-27
申请号：US10587985
申请日：2005-01-21
申请人： Alan Lettington , Brenda Lettington
发明人： Alan Lettington , Brenda Lettington
IPC分类号： G02F1/00
CPC分类号： H04N5/2256 , H04N5/33 , H04N5/332
摘要： Imaging apparatus is disclosed for passive microwave, millimetre wave, sub-millimetre wave or infrared imaging, the apparatus including a receiver (10) for receiving radiation from the scene or subject being imaged, means for directing such radiation onto the receiver, a cold source (16) or a hot source (16), i.e. a source with a low or high black body temperature, and means (14, 14a) for directing the image or shadow of said cold source or hot source onto the scene or subject being imaged. The result is to produce improved contrast in the image obtained. Imaging apparatus is also disclosed for imaging an object (102) in the microwave, millimetre wave, sub-millimetre wave or infrared ranges in which a retroreflector such as a cube-corner reflective array (104) is arranged facing the object and disposed laterally with respect of the line of sight between the object and an imaging device (100) and in which such radiation is directed onto the object, from a radiation source, along a path corresponding to or close to that line of sight. Consequently light from the radiation source, reflected laterally from the object, will be reflected, in turn, by the cube-corner array, back substantially along the path which it followed from the object to the cube-corner array, to be reflected in turn, by the object, back to the imaging device. The apparatus therefore ensures that specularly reflective parts of the object (102) appear bright in the resulting image.
摘要翻译：公开了用于无源微波，毫米波，亚毫米波或红外成像的成像装置，该装置包括用于接收来自被成像的场景或被摄体的辐射的接收器（10），用于将这种辐射引导到接收器上的装置（16）或热源（16），即具有低或高黑体温的源，以及用于将所述冷源或热源的图像或阴影引导到场景或被摄体上的装置（14,14a）成像。结果是在获得的图像中产生改善的对比度。还公开了成像装置，用于对微波，毫米波，亚毫米波或红外范围成像物体（102），其中诸如立体角反射阵列（104）的后向反射器被布置成面向物体并横向设置对物体和成像装置（100）之间的视线的影响，并且其中这种辐射从辐射源沿着对应于或接近该视线的路径被引导到物体上。因此，从物体横向反射的来自辐射源的光将被立方角阵列反射，基本上沿着从物体到立体角阵列的路径反射，以反过来，由物体，回到成像装置。因此，该装置确保物体（102）的镜面反射部分在所得到的图像中显现为明亮。

4. 发明申请

US20060146387A1 SCANNING APPARATUS 有权
标题翻译：扫描仪
公开(公告)号：US20060146387A1
公开(公告)日：2006-07-06
申请号：US11367554
申请日：2006-03-06
申请人： Alan Lettington
发明人： Alan Lettington
IPC分类号： G02B26/08
CPC分类号： G02B26/10 , G02B26/0891 , G02B27/28
摘要： A scanning apparatus comprises two rotatable bodies (1, 10 or 40) arranged to rotate in opposite directions. The first body being a polarizer (10) and the second being a mirror (1) or a second polarizer (40). The apparatus is arranged to define an optical path for a polarized beam, wherein the optical path passes through the first body (10), is reflected at the second body (1 or 40), and is reflected by the first body (10) back to the second body (1 or 40) from where it is transmitted or reflected to produce a linear scan. There is also disclosed a scanning system comprising a reflector (1) and an optical wedge (42) containing refractive materials, arranged to counter rotate and arranged so that a beam passing through the optical wedge (42), is reflected by the reflector (1) and passes back through the optical wedge (42) to produce a linear scan.
摘要翻译：扫描装置包括布置成沿相反方向旋转的两个可旋转体（1,10或40）。第一主体是偏振器（10），第二主体是反射镜（1）或第二偏振器（40）。该装置被布置成限定用于偏振光束的光路，其中光路穿过第一主体（10）在第二主体（1或40）处被反射，并被第一主体（10）反射回到第二主体（1或40），从其被传送或反射以产生线性扫描。还公开了一种扫描系统，其包括反射器（1）和包含折射材料的光学楔（42），该光学楔（42）布置成反向旋转并布置成使得穿过光楔（42）的光束被反射器（1）反射）并返回通过光楔（42）以产生线性扫描。

5. 发明授权

US07106482B2 Scanning apparatus 有权
标题翻译：扫描仪
公开(公告)号：US07106482B2
公开(公告)日：2006-09-12
申请号：US11367554
申请日：2006-03-06
申请人： Alan Lettington
发明人： Alan Lettington
IPC分类号： G02B26/08
CPC分类号： G02B26/10 , G02B26/0891 , G02B27/28
摘要： A scanning apparatus comprises two rotatable bodies (1,10 or 40) arranged to rotate in opposite directions. The first body being a polarizer (10) and the second being a mirror (1) or a second polarizer (40). The apparatus is arranged to define an optical path for a polarized beam, wherein the optical path passes through the first body (10), is reflected at the second body (1 or 40), and is reflected by the first body (10) back to the second body (1 or 40) from where it is transmitted or reflected to produce a linear scan. There is also disclosed a scanning system comprising a reflector (1) and an optical wedge (42) containing refractive materials, arranged to counter rotate and arranged so that a beam passing through the optical wedge (42), is reflected by the reflector (1) and passes back through the optical wedge (42) to produce a linear scan.
摘要翻译：扫描装置包括布置成沿相反方向旋转的两个旋转体（1,10或40）。第一主体是偏振器（10），第二主体是反射镜（1）或第二偏振器（40）。该装置被布置成限定用于偏振光束的光路，其中光路穿过第一主体（10）在第二主体（1或40）处被反射，并被第一主体（10）反射回到第二主体（1或40），从其被传送或反射以产生线性扫描。还公开了一种扫描系统，其包括反射器（1）和包含折射材料的光学楔（42），该光学楔（42）布置成反向旋转并布置成使得穿过光楔（42）的光束被反射器（1）反射）并返回通过光楔（42）以产生线性扫描。

6. 发明申请

US20050122556A1 Scanning apparatus 有权
标题翻译：扫描仪
公开(公告)号：US20050122556A1
公开(公告)日：2005-06-09
申请号：US10919052
申请日：2004-08-16
申请人： Alan Lettington
发明人： Alan Lettington
IPC分类号： G02B26/10 , H04N1/028 , H04N3/08 , H04N3/09 , G02B5/32 , G02B26/08
CPC分类号： H04N3/08 , H04N3/09
摘要： Scanning apparatus operable in the microwave, mm-wave and infrared ranges and comprises a support structure, a first reflective disc or mirror (10) which is mounted in said support structure for rotation relative to the support structure about a first axis (14), and a second reflective disc or mirror (12) which is mounted in said support structure for rotation relative to the support structure about a second axis (16) and driving means for said discs or mirrors arranged to drive these in respective opposite senses. In operation of the apparatus, radiation from a scene being scanned reaching a reflective surface of the first disc or mirror is reflected thereby onto a reflective surface of the second disc or mirror, to be reflected by the latter, in turn, onto the reflective surface of the first disc or mirror again, to be reflected from the first disc or mirror into or onto a further part of the apparatus incorporating a receiver or receivers for such radiation. The reflective surface of the first disc or mirror has an axis of rotational symmetry, tilted at a first small angle relative to said first axis and the reflective surface of the second disc or mirror has an axis of rotational symmetry tilted at a second angle relative to said second axis. The driving means for the discs or mirrors is arranged to drive these in such a way as to effect a substantially linear scan. the size of said second angle relative to said first angle being selected so as to reduce or eliminate pupil wander in the direction orthogonal to the direction of line scan.
摘要翻译：在微波，毫米波和红外范围内可操作的扫描装置包括支撑结构，第一反射盘或反射镜（10），其安装在所述支撑结构中，用于围绕第一轴线（14）相对于支撑结构旋转，以及第二反射盘或反射镜（12），其安装在所述支撑结构中，用于围绕第二轴线（16）相对于所述支撑结构旋转;以及用于所述盘或反射镜的驱动装置，所述驱动装置布置成以相应的相反方向驱动它们。在装置的操作中，来自被扫描的场景的到达第一盘或反射镜的反射表面的辐射被反射到第二盘或反射镜的反射表面上，以被后者反射回反射表面再次从第一个光盘或镜子反射入或包含在该装置的另一部分中，该装置包括用于这种辐射的接收器或接收器。第一盘或反射镜的反射表面具有相对于所述第一轴线以第一小角度倾斜的旋转对称轴线，并且第二盘或反射镜的反射表面具有相对于第二盘或反射镜以第二角度倾斜的轴线说第二轴。用于盘或镜的驱动装置被布置成以这样的方式驱动它们以实现基本上线性的扫描。选择相对于所述第一角度的所述第二角度的大小，以便减少或消除在垂直于线扫描方向的方向上的瞳孔漂移。

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