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11. 发明授权

US08587686B1 Hybrid differential optical sensing imager 失效
标题翻译：混合差分光学传感成像仪
公开(公告)号：US08587686B1
公开(公告)日：2013-11-19
申请号：US13049478
申请日：2011-03-16
申请人： Nabeel A. Riza , Hassan Foroosh
发明人： Nabeel A. Riza , Hassan Foroosh
IPC分类号： H04N5/235 , H04N5/228
CPC分类号： G01S17/42 , G01S7/4802 , G01S7/481 , G01S17/023 , G01S17/89
摘要： Methods and systems for a differential compressed sensor to form a smart optical imager that uses both active (laser) and passive (ambient light) to sample the direct image information within a three-dimensional spatial frame. The lens-based distance sensor is produces smart sampling of target by adjusting the size of the laser beam spot on the target sampling grid to produce a boundary outline by a light flooding. This target dependent direct sampling of the target results in direct compressed sensing. A passive light acquisition pin-hole sampling optical sensor design is proposed that produces the pixel-basis Laplacian to determine the compressed sensed pixels in the incident image.
摘要翻译：用于差分压缩传感器以形成智能光学成像器的方法和系统，其使用有源（激光）和被动（环境光）来在三维空间帧内采样直接图像信息。基于镜头的距离传感器通过调整目标采样网格上的激光束斑点的尺寸，通过光驱产生边界轮廓，产生目标的智能采样。目标依赖的目标直接采样导致直接压缩感测。提出了一种无源光采集针孔采样光学传感器设计，其产生基于像素的拉普拉斯算子来确定入射图像中的压缩感测像素。

12. 发明授权

US08213022B1 Spatially smart optical sensing and scanning 失效
标题翻译：空间智能光学传感和扫描
公开(公告)号：US08213022B1
公开(公告)日：2012-07-03
申请号：US12717459
申请日：2010-03-04
申请人： Nabeel A. Riza , Frank Perez
发明人： Nabeel A. Riza , Frank Perez
IPC分类号： G01B11/30
CPC分类号： G01B11/026 , G01B11/24 , G01S7/4814 , G01S17/89
摘要： Methods, devices and systems of an optical sensor for spatially smart 3-D object measurements using variable focal length lenses to target both specular and diffuse objects by matching transverse dimensions of the sampling optical beam to the transverse size of the flat target for given axial target distance for instantaneous spatial mapping of flat target, zone. The sensor allows volumetric data compressed remote sensing of object transverse dimensions including cross-sectional size, motion transverse displacement, inter-objects transverse gap distance, 3-D animation data acquisition, laser-based 3-D machining, and 3-D inspection and testing. An embodiment provides a 2-D optical display using 2-D laser scanning and 3-D beamforming optics engaged with sensor optics to measure distance of display screen from the laser source and scanning optics by adjusting its focus to produce the smallest focused beam spot on the display screen. With known screen distance, the angular scan range for the scan mirrors can be computed to generate the number of scanned spots in the 2-D display.
摘要翻译：用于使用可变焦距透镜的空间智能3-D物体测量的光学传感器的方法，装置和系统，其通过将采样光束的横向尺寸与给定轴向目标的平面目标的横向尺寸相匹配来瞄准镜面和漫射物体平面目标，区域的瞬时空间映射距离。传感器允许体积数据压缩遥感对象横向尺寸，包括横截面尺寸，运动横向位移，物体间间距，3D动画数据采集，基于激光的三维加工和三维检测; 测试。实施例提供使用二维激光扫描和与传感器光学器件相结合的三维波束成形光学器件的二维光学显示器，以通过调整其聚焦来测量显示屏幕与激光源的距离和扫描光学元件，以产生最小的聚焦光束点显示屏幕。利用已知的屏幕距离，可以计算扫描镜的角度扫描范围，以产生2-D显示中的扫描点数。

13. 发明授权

US5694216A Scanning heterodyne acousto-optical interferometers 失效
标题翻译：扫描外差声光干涉仪
公开(公告)号：US5694216A
公开(公告)日：1997-12-02
申请号：US636506
申请日：1996-04-25
申请人： Nabeel A. Riza
发明人： Nabeel A. Riza
IPC分类号： G01B9/02
CPC分类号： G01B9/02004 , G01B9/02002 , G01B9/02007 , G01B9/02072 , G01B2290/30 , G01B2290/65 , G01B2290/70
摘要： Compact, high performance, scanning heterodyne optical interferometers for interferometric phase-based measurement and a host of other applications are introduced. An in-line, almost common-path optical interferometer design offers robustness to externally induced phase noise via mechanical vibrations, thermal effects, and other environmental effects. Several instrument designs are disclosed for both transmissive and reflective interferometry. These interferometers use acousto-optic devices or Bragg cells to implement rapid (e.g.,
摘要翻译：介绍了用于干涉式相位测量的紧凑，高性能，扫描外差光学干涉仪以及许多其他应用。一种直线式，几乎通用光路干涉仪设计通过机械振动，热效应和其他环境影响提供了对外部诱发的相位噪声的鲁棒性。公开了用于透射和反射干涉测量的几种仪器设计。这些干涉仪使用声光装置或布拉格单元来实现测试介质的快速（例如<50μs/扫描点）光学扫描。虽然读取的光束扫描给定的测试区域，仪器的双布拉格衍射光学设计使最终的干扰输出光束固定在用于通过外差检测的射频信号生成的两个高速光检测器上。一个光电检测器用作固定相位参考，而另一个固定光电检测器在光束扫描测试区域时拾取测试介质相位信息。通过使用固定的一维输出高速检测器阵列，或者通过使用高速非机械电光偏转器，测试介质的高速二维光学扫描是可能的。此外，本发明可以体现在使用用于加密的相干编码相干光纤传输的空间码的快速光学扫描的相干宽带宽光发射机中。这种用于复杂光学代码读取和传输的相干系统本质上是可逆的，并且可以用于发射 - 接收编码的相干光通信。

14. 发明授权

US5345321A Compact polarization dependent optical switching units 失效
标题翻译：紧凑的偏振相关光开关单元
公开(公告)号：US5345321A
公开(公告)日：1994-09-06
申请号：US994012
申请日：1992-12-21
申请人： Michael C. DeJule , Thomas L. Credelle , Nabeel A. Riza , Donald E. Castleberry
发明人： Michael C. DeJule , Thomas L. Credelle , Nabeel A. Riza , Donald E. Castleberry
IPC分类号： G02F1/31 , H01Q3/26 , G02F1/1335 , H01Q3/22
CPC分类号： G02F1/31 , H01Q3/2676
摘要： A compact optical switching unit includes a spatial light modulator coupled to a delay assembly such that incident light beams are respectively selectively directed along either a direct path or a delay path dependent on the linear polarization of the light beam. The delay assembly includes a light deflection device, such as a polarizing beam splitter, coupled to a delay path apparatus, such as mirror prisms or fiber optic cable. A compact and readily fabricated cascade of optical switching units includes polarizing beam splitter blocks and polarization rotation switch blocks, a portion of which constitutes the polarizing beamsplitters and spatial light modulators in respective optical switching units sequentially optically coupled. Delay path apparatuses disposed along an axis orthogonal to both the axis of beams passing along a direct path through polarizing beam splitter switches on the direct path and the axis between respective optical switching units result in a compact optical architecture.
摘要翻译：紧凑的光学开关单元包括耦合到延迟组件的空间光调制器，使得入射光束分别根据光束的线性偏振而沿着直接路径或延迟路径选择性地定向。延迟组件包括耦合到诸如镜面棱镜或光纤电缆的延迟路径装置的偏转光束分离器的光偏转装置。紧凑且容易制造的光学开关单元的级联包括偏振分束器块和偏振旋转开关块，其一部分构成顺序光学耦合的相应光学开关单元中的偏振分束器和空间光调制器。延伸路径装置沿着与通过直接路径的光束轴正交的轴正交，通过直接路径上的偏振分束器开关和各个光开关单元之间的轴产生紧凑的光学架构。

15. 发明授权

US5307073A Optically controlled phased array radar 失效
标题翻译：光控相控阵雷达
公开(公告)号：US5307073A
公开(公告)日：1994-04-26
申请号：US976019
申请日：1992-11-13
申请人： Nabeel A. Riza
发明人： Nabeel A. Riza
IPC分类号： G02F2/00 , H01Q3/26 , H01Q3/22 , G02B26/06 , H04B10/00
CPC分类号： H01Q3/2676 , G02F2/002 , G02F2203/12
摘要： A compact, stable, and optically efficient two dimensional spatial light modulator-based electro-optical control system for large (>1000 elements) phase-based phased array antennas uses two externally phase-locked lasers to generate respective pluralities of first and second light beams that are respectively mutually orthogonally polarized. Respective ones of the first and second light beams are combined to pass along collinear and coincident paths to form a plurality of combined light beams. The frequency difference between the first and second light beams which form the constituent beams in each combined beam cause an interference pattern that, upon heterodyne detection of the optical signal and conversion to an electrical antenna drive signal, provides control of the carrier frequency for driving the antenna. A phase delay is introduced via electrical control of an array of birefringent-mode nematic liquid crystal pixels that selectively phase delay one of the constituent light beams having a predetermined linear polarization in each combined light beam, while the other constituent beam is not phase delayed and is used as a reference for microwave/millimeter wave signal generation via interferometric detection through a photodiode. Further, a frequency shift unit coupled to the laser assembly enable an intermediate frequency offset to be selectively introduced, such as during receive cycles of the radar, such that electrical output signals generated by the optical signal processing system exhibit a desired intermediate frequency.
摘要翻译：用于大型（> 1000个元件）基于相位的相控阵天线的紧凑，稳定且光学有效的基于二维空间光调制器的电光控制系统使用两个外部锁相激光器来产生相应的多个第一和第二光束分别相互正交极化。将第一和第二光束中的相应光束组合以沿着共线和重合路径传递以形成多个组合光束。在每个组合光束中形成组成光束的第一和第二光束之间的频率差导致干涉图案，在外部检测光信号和转换为电天线驱动信号时，提供对载波频率的控制以驱动天线。通过双折射模式向列型液晶像素的阵列的电气控制引入相位延迟，该双折射模式向列型液晶像素选择性地相位延迟每个组合光束中具有预定线性偏振的组成光束之一，而另一个构成光束不相位延迟，用作通过光电二极管通过干涉测量检测产生微波/毫米波信号的参考。此外，耦合到激光器组件的频移单元使得能够选择性地引入中频偏移，诸如在雷达的接收周期期间，使得由光信号处理系统产生的电输出信号呈现期望的中频。

16. 发明授权

US5187487A Compact wide tunable bandwidth phased array antenna controller 失效
标题翻译：紧凑型宽可调带宽相控阵天线控制器
公开(公告)号：US5187487A
公开(公告)日：1993-02-16
申请号：US847156
申请日：1992-03-05
申请人： Nabeel A. Riza
发明人： Nabeel A. Riza
IPC分类号： H01Q3/26
CPC分类号： H01Q3/2676
摘要： A compact, stable, and optically efficient two dimensional spatial light modulator-based electro-optical control system for large (>1000 elements) phase-based phased array antennas uses an acousto-optic modulator (AOM) driven by a microwave signal at the desired radar carrier. A phase delay is introduced via electrical control of an array of birefringent-mode nematic liquid crystal cells that selectively phase delays a polarized signal light beam, while a non-phase delayed doppler shifted polarized beam is used as a reference for microwave signal generation via interferometric detection through a photodiode. The optical design provides a very fast (in nsecs) wideband carrier hopping capability. An alternative embodiment of the invention uses a deformable mirror device (DMD) SLM to introduce the required phase shifts.
摘要翻译：用于大型（> 1000个元件）基于相位的相控阵天线的紧凑，稳定且光学有效的基于二维空间光调制器的电光控制系统使用由所需的微波信号驱动的声光调制器（AOM）雷达载体。相位延迟通过双折射模式向列型液晶单元阵列的电气控制引入，该双折射模式向列型液晶单元选择性地相位延迟偏振信号光束，而非相位延迟多普勒偏移偏振光束用作通过干涉测量产生微波信号的参考通过光电二极管进行检测。光学设计提供了非常快的（nsecs）宽带载波跳频能力。本发明的替代实施例使用可变形反射镜装置（DMD）SLM来引入所需的相移。

17. 发明授权

US07978346B1 Methods and systems for realizing high resolution three-dimensional optical imaging 有权
标题翻译：实现高分辨率三维光学成像的方法和系统
公开(公告)号：US07978346B1
公开(公告)日：2011-07-12
申请号：US12706277
申请日：2010-02-16
申请人： Nabeel A. Riza
发明人： Nabeel A. Riza
IPC分类号： G01B11/22
CPC分类号： G01B11/24 , G02B21/0068 , G02B21/0072
摘要： Methods and systems for realizing high resolution three-dimensional (3-D) optical imaging using diffraction limited low resolution optical signals. Using axial shift-based signal processing via computer based computation algorithm, three sets of high resolution optical data are determined along the axial (or light beam propagation) direction using low resolution axial data. The three sets of low resolution data are generated by illuminating the 3-D object under observation along its three independent and orthogonal look directions (i.e., x, y, and z) or by physically rotating the object by 90 degrees and also flipping the object by 90 degrees. The three sets of high resolution axial data is combined using a unique mathematical function to interpolate a 3-D image of the test object that is of much higher resolution than the diffraction limited direct measurement 3-D resolution. Confocal microscopy or optical coherence tomography (OCT) are example methods to obtain the axial scan data sets.
摘要翻译：使用衍射极限低分辨率光信号实现高分辨率三维（3-D）光学成像的方法和系统。使用基于计算机的计算算法的基于轴向移位的信号处理，使用低分辨率轴向数据沿轴向（或光束传播）方向确定三组高分辨率光学数据。三组低分辨率数据通过沿其三个独立和正交的外观方向（即x，y和z）照射观察下的三维物体或通过将物体物理旋转90度并且还翻转物体来产生 90度。使用独特的数学函数组合三组高分辨率轴向数据来内插测试对象的3-D图像，其比衍射受限直接测量3-D分辨率高得多的分辨率。共聚焦显微镜或光学相干断层扫描（OCT）是获得轴向扫描数据集的示例方法。

18. 发明授权

US5718226A Photonically controlled ultrasonic probes 失效
标题翻译：光子超声波探头
公开(公告)号：US5718226A
公开(公告)日：1998-02-17
申请号：US693350
申请日：1996-08-06
申请人： Nabeel A. Riza
发明人： Nabeel A. Riza
IPC分类号： A61B17/32 , G01S15/89 , G10K11/34 , A61D8/00
CPC分类号： G01S15/8968 , A61B17/320068 , G10K11/34
摘要： Wavelength diversity coupled with fiber-based time delay, optical energy delivery, and ultrasonic energy sensing, are proposed to form a novel, rapidly tunable (e.g., 1 Khz-100 Mhz) and wide instantaneous bandwidth (e.g., >50% bandwidth at center carrier), ultrasonic probe system for therapy, diagnostics, and non-invasive surgery, particularly for intracavity operation with a typical 100 channel/transducer element count. This ultrasonic system architecture is a multi-wavelength optical delay line module using two high speed (i.e.,
摘要翻译：提出波长分集以及基于光纤的时间延迟，光能传递和超声波能量传感，以形成一种新颖的，快速可调谐的（例如1KHz-100Mhz）和宽的瞬时带宽（例如，中心带宽> 50％载体），用于治疗，诊断和非侵入性手术的超声探头系统，特别是用于具有典型的100通道/换能器元件数的腔内操作。该超声波系统架构是使用两个高速（即，<10微秒波长切换时间），体声光可调滤波器的多波长光延迟线模块，其提供共线，大功率，多波长光输入和输出光束。该波长选择模块还提供高的光学吞吐量（例如，90％的效率）和优异的（例如，-30db）的不想要的泄漏（未衍射）光的光学阻塞，当这样的模块级联以提供许多可变信号时间时防止噪声传播延误整个系统还使用另一种多波长模块，其在所提出的偏振敏感超声波控制系统的各种关键阶段调整光束的光学偏振。该偏振控制器基于使用各种类型的液晶的各种低损耗二维像素化薄膜器件阵列的干涉设计，例如扭转向列，平行 - 摩擦双折射模式和铁电体。这些液晶器件形成所需的偏振模转换器，移相器和形成我们的新型偏振控制模块所需的半波片。

19. 发明授权

US5532860A Spatial synchronization for optical communication system 失效
标题翻译：光通信系统的空间同步
公开(公告)号：US5532860A
公开(公告)日：1996-07-02
申请号：US406437
申请日：1995-03-20
申请人： John E. Hershey , Nabeel A. Riza , Amer A. Hassan
发明人： John E. Hershey , Nabeel A. Riza , Amer A. Hassan
IPC分类号： G02B27/48 , H04J14/00
CPC分类号： H04J14/00 , G02B27/48
摘要： A spatial synchronization method for an optical communications system includes the step of transmitting from a transmit aperture a pyramidal synchronizing profile so as to sequentially spatially register a user identification speckle pattern at a receive aperture. The iterative patterns in the pyramidal synchronizing profile detected by the receive array are processed and correlated with a library of respective user pyramidal synchronizing profiles so as to match and register the speckle pattern for a particular user. Registration of the user speckle pattern provides an offset value representing the spatial relation of a reference point of the user's pattern to a corresponding reference point of the receive aperture, which offset information is applied to a receive pattern processor so that the receive aperture is aligned with the transmitted speckle patterns.
摘要翻译：用于光通信系统的空间同步方法包括从发射孔径发送锥体同步分布的步骤，以便在接收孔径处依次空间地登记用户识别散斑图案。由接收阵列检测的金字塔形同步分布中的迭代模式被处理并与相应用户锥体同步分布的文库相关联，以便匹配并注册特定用户的散斑图案。用户斑点图案的注册提供表示用户图案的参考点与接收孔径的相应参考点的空间关系的偏移值，该偏移信息被施加到接收图案处理器，使得接收孔径与传输的斑点图案。

20. 发明授权

US5274381A Optical controller with independent two-dimensional scanning 失效
标题翻译：光控制器独立二维扫描
公开(公告)号：US5274381A
公开(公告)日：1993-12-28
申请号：US955165
申请日：1992-10-01
申请人： Nabeel A. Riza
发明人： Nabeel A. Riza
IPC分类号： G02F2/00 , H01Q3/26 , H04B10/12 , H01Q3/22 , G02F1/07
CPC分类号： H01Q3/2676 , H04B10/64 , G02F2/002
摘要： A liquid crystal and acousto-optic based control system for phased array antennas provides independent control of scanning along two axes of the antenna. The optical control system includes a laser source providing polarized laser beams processed in an in-line interferometric optical architecture that uses two acousto-optic deflectors (AODs) driven by separate sidebands of a microwave signal that is a mixture of a drive frequency corresponding to the desired carrier frequency and a variable control frequency for determining a selected sideband frequency. The AODs and associated polarization rotators generate a plurality of optical signal pairs, each pair having one first order positive doppler shifted light beam deflected by a first sideband drive signal and one first order negative doppler shifted light beam deflected by a second sideband drive signal, the positive and negative doppler shifted beams being respectively orthogonally linearly polarized and traveling along almost collinear paths. A further optical phase delay is introduced in a predetermined one of the light beams in each optical signal pair via electrical control of an array of liquid crystal pixels in a spatial light modulator (SLM). After passing through the SLM, orthogonally-polarized light beams in each pair are combined; this signal is then used via heterodyne detection by a respective photodiode to generate an electrical output signal.
摘要翻译：用于相控阵天线的基于液晶和声光的控制系统提供对天线两个轴的扫描的独立控制。光学控制系统包括激光源，其提供在线干涉光学架构中处理的偏振激光束，其使用由微波信号的分离边带驱动的两个声光偏转器（AOD），微波信号的边带是与期望的载波频率和用于确定所选择的边带频率的可变控制频率。 AOD和相关的偏振旋转器产生多个光信号对，每对具有由第一边带驱动信号偏转的一个一阶正多普勒偏移光束和由第二边带驱动信号偏转的一个一阶负多普勒偏移光束，正和负多普勒偏移光束分别正交线性偏振并沿着几乎共线的路径行进。通过空间光调制器（SLM）中的液晶像素阵列的电控制，在每个光信号对中的预定的一个光束中引入另外的光相位延迟。在通过SLM之后，组合每对中的正交偏振光束; 该信号然后通过相应光电二极管的外差检测来产生电输出信号。

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