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1. 发明授权

US08078663B2 Optical correlation apparatus and method 有权
标题翻译：光学相关装置及方法
公开(公告)号：US08078663B2
公开(公告)日：2011-12-13
申请号：US11664348
申请日：2005-10-18
申请人： Rebecca A Wilson , Meirion F Lewis , Andrew C Lewin
发明人： Rebecca A Wilson , Meirion F Lewis , Andrew C Lewin
IPC分类号： G06E3/00
CPC分类号： G06E3/00 , G06K9/745
摘要： This invention relates to a pattern recognition correlator and method for correlating input data with one or more reference data sets. The input data, which may be for instance digital amplitude modulated optical data, is used to modulate an optical signal to form a phase modulated optical signal. This temporal phase modulated optical signal is then converted into a parallel optical phase signal, preferably through use of an optical delay, and modulated by an optical phase modulator. When there is a correlation between the input data and the reference data the emerging wavefront is plane and can be strongly coupled to a detector. In the absence of correlation the emergent wavefront is not plane and so is not coupled as strongly to the detector. The detector output can therefore be used as an indication of correlation.
摘要翻译：本发明涉及一种用于将输入数据与一个或多个参考数据集相关联的模式识别相关器和方法。可以使用输入数据（例如数字调幅光学数据）来调制光信号以形成相位调制光信号。该时间相位调制光信号然后被优选地通过使用光学延迟并被光相位调制器调制而转换成并行光相位信号。当输入数据和参考数据之间存在相关性时，出现的波前是平面的并且可以强耦合到检测器。在没有相关性的情况下，出现的波前不是平面的，因此不像检测器那样强烈耦合。因此，检测器输出可以用作相关指示。

2. 发明授权

US08145011B2 Correlation apparatus 失效
标题翻译：相关装置
公开(公告)号：US08145011B2
公开(公告)日：2012-03-27
申请号：US12086213
申请日：2006-12-12
申请人： Andrew C Lewin , Rebecca A Wilson , Gregor J McDonald
发明人： Andrew C Lewin , Rebecca A Wilson , Gregor J McDonald
IPC分类号： G06K9/64 , G06K9/00 , G06K9/54 , G06K9/60
CPC分类号： G06K9/74 , H04J3/047
摘要： This invention relates to a pattern recognition correlator in which a serial input data signal is converted into a parallel data signal for correlation with one or more reference data signals. The invention relates to use of a demultiplexer in such a correlation apparatus to reduce the data update rate for the subsequent components. The invention also relates to the use of a series of latch circuits to provide serial to parallel conversion of the input data signal in the electrical domain.
摘要翻译：本发明涉及一种模式识别相关器，其中串行输入数据信号被转换为与一个或多个参考数据信号相关的并行数据信号。本发明涉及在这种相关装置中使用解复用器以减少后续组件的数据更新速率。本发明还涉及使用一系列锁存电路来提供电域中的输入数据信号的串行到并行转换。

3. 发明授权

US07459670B2 Proximity sensor based on projection of structured light 有权
标题翻译：基于结构光投影的接近传感器
公开(公告)号：US07459670B2
公开(公告)日：2008-12-02
申请号：US10534494
申请日：2003-11-11
申请人： Andrew C Lewin , David A Orchard
发明人： Andrew C Lewin , David A Orchard
IPC分类号： H01J40/14
CPC分类号： G01S17/026
摘要： This invention relates to a proximity sensor. An illumination means (2) projects an array of spots (40) towards a scene. Detector (8) looks towards the scene through a mask (6). The mask (6) is arranged such that light from a target at a certain range, for instance far object (14) is not transmitted to the detector. Light reflected from a close object (16) however passes through the mask (6) and is incident on the detector (8). A rise in the intensity of incident light at the detector (8) is determined by threshold detector (10) and used to operate an alarm (12).
摘要翻译：本发明涉及一种接近传感器。照明装置（2）将点阵列（40）投射到场景。检测器（8）通过面罩（6）向现场看。掩模（6）被布置成使得来自某一范围的目标物（例如远物体（14））的光不被传送到检测器。然而，从近物体（16）反射的光通过掩模（6）并入射到检测器（8）上。检测器（8）的入射光强度的上升由阈值检测器（10）确定，用于操作报警器（12）。

4. 发明授权

US08422000B2 Bistatic laser radar apparatus 有权
标题翻译：双基地激光雷达仪器
公开(公告)号：US08422000B2
公开(公告)日：2013-04-16
申请号：US10529055
申请日：2003-10-09
申请人： Michael Harris , Christopher Hill , Andrew C Lewin
发明人： Michael Harris , Christopher Hill , Andrew C Lewin
IPC分类号： G01C3/08
CPC分类号： G01S7/4818 , G01S7/4811 , G01S7/497 , G01S17/003 , G01S17/58
摘要： A bistatic laser radar (lidar) device is described that comprises a transmit channel (60) for forming a focused transmit beam, and a receive channel (62) for forming a focused receive beam. The device is arranged such that the focus of the transmit beam and the focus of the receive beam fall on a common axis when focused to a distance within the operable distance range of the device. The device may be used for vibrometry, wind speed measurements and the like. Implementation of such a device using optical fiber based components is described.
摘要翻译：描述了一种双基地激光雷达（激光雷达）装置，其包括用于形成聚焦发射光束的发射通道（60）和用于形成聚焦接收光束的接收通道（62）。该设备被布置成使得当聚焦到设备的可操作距离范围内的距离时，发射光束的焦点和接收光束的焦点落在公共轴上。该装置可用于振动测量，风速测量等。描述使用基于光纤的部件的这种装置的实现。

5. 发明授权

US07907262B2 Surface shape measurement apparatus and method 有权
标题翻译：表面形状测量装置及方法
公开(公告)号：US07907262B2
公开(公告)日：2011-03-15
申请号：US10589075
申请日：2005-02-10
申请人： Andrew M Scott , Andrew C Lewin
发明人： Andrew M Scott , Andrew C Lewin
IPC分类号： G01B9/00
CPC分类号： G01B11/16
摘要： Apparatus for indicating the departure of a shape of an object from a specified shape is described. The apparatus includes a light source for directing an incident beam of radiation onto the object, and an inspecting device for inspecting the final beam after transmission by or reflection from the object. The apparatus is arranged so that the final beam will have a substantially planar wavefront when the object has the specified shape, and said inspecting device is arranged to determine any departure of the wavefront of the final beam from planarity. In one embodiment, the inspecting device includes a beamsplitter, for example a diffraction grating or hologram, and a detector such as a CCD camera. The beamsplitter is then arranged to split the final beam into two or more beams and to direct the two or more beams to laterally displaced locations on the detector.
摘要翻译：描述了用于指示物体形状从指定形状的偏离的装置。该装置包括用于将入射的辐射束引导到物体上的光源，以及用于在透射或从物体反射之后检查最终光束的检查装置。该装置被布置成使得当物体具有指定形状时，最终光束将具有基本上平面的波前，并且所述检查装置被布置成确定最终光束的波前与平面度的任何偏离。在一个实施例中，检查装置包括分束器，例如衍射光栅或全息图，以及诸如CCD照相机的检测器。分束器然后被布置成将最终光束分成两个或更多个光束并且将两个或更多个光束引导到检测器上的横向移位的位置。

6. 发明授权

US07808712B2 Imaging system 有权
标题翻译：成像系统
公开(公告)号：US07808712B2
公开(公告)日：2010-10-05
申请号：US10543685
申请日：2004-01-27
申请人： Andrew M Scott , Andrew C Lewin , Simon C Woods
发明人： Andrew M Scott , Andrew C Lewin , Simon C Woods
IPC分类号： G02B27/14
CPC分类号： G01J9/00 , G01J2009/002
摘要： Optical apparatus for simultaneously focussing first and second coaxially spaced object planes in respective separate first and second areas of a common image plane 13 (such as the sensor of a CCD camera) comprises non-diffractive beamsplitter means for receiving light from said object planes along a common path 2 for transmission to said first and second image areas along respective first and second optical paths 3, 4, and reflective or transmissive focussing means 8 arranged to bring said first and second object planes into focus in said first and second areas. The object planes may be differentiated by having different length paths 3,4 (different physical lengths and/or using a differential optical delay), and/or by having different focussing powers in the two paths. In an add-on for a camera, differently curved mirrors of long focal length modify the main camera lens. Polarising optics may be used to separate the two images. The apparatus may be used for 3-D imaging or wavefront analysis.
摘要翻译：用于同时聚焦在共同的图像平面13（例如CCD照相机的传感器）的相应单独的第一和第二区域中的第一和第二同轴间隔的物平面的光学装置包括非衍射分束器装置，用于沿着用于沿着相应的第一和第二光路3,4传输到所述第一和第二图像区域的公共路径2以及布置成使所述第一和第二物体在所述第一和第二区域中聚焦的反射或透射聚焦装置8。可以通过具有不同的长度路径3,4（不同的物理长度和/或使用差分光学延迟）和/或通过在两个路径中具有不同的聚焦功率来区分对象平面。在相机的附件中，长焦距不同的曲面镜可以修改主相机镜头。偏振光学元件可用于分离两个图像。该装置可用于3-D成像或波前分析。

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