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1. 发明授权

US06525863B1 Multi-technology multi-beam-former platform for robust fiber-optical beam control modules 失效
标题翻译：用于强大的光纤光束控制模块的多技术多光束成像平台
公开(公告)号：US06525863B1
公开(公告)日：2003-02-25
申请号：US09512436
申请日：2000-02-25
申请人： Nabeel A. Riza
发明人： Nabeel A. Riza
IPC分类号： G02B2600
CPC分类号： G02B6/2938 , G02B6/266 , G02B6/29395 , G02B6/3512 , G02B6/3556 , G02B6/3558
摘要： This invention pertains to a basic multi-technology application of cascaded beam-formers. A dual MEMS-EO technology platform method involving a two axis deflection micro-mirror cascaded with a three dimensional electro-optical beam-former such as a multi pixel liquid crystal device forms a powerful reflective control site for an incident beam, thereby inherently providing a robust beam control with both coarse and fine beam control capabilities in three dimensions. The electrically controlled two axis micro-mirror is excellent in providing the large angular beam deflections, while the liquid crystal device provides excellent small-beam deflections. This leads to a mechanically robust beam control module. A multipixel MEMS mirror device option coupled with the EO device can also provide simultaneous multi-beam generation capability. Furthermore, use of macro-pixels for both the MEMS and EO devices provides resistance to single pixel dependent catastrophic failure for the overall module. The mirror two-axis control can be supplemented with additional translational mirror motion, giving the ultimate option of cascading two 3-D beam-formers.
摘要翻译：本发明涉及级联射束成形器的基本多技术应用。涉及与诸如多像素液晶装置的三维电光成像仪级联的双轴偏转微镜的双MEMS-EO技术平台方法为入射光束形成强大的反射控制位置，从而固有地提供坚固的光束控制，具有三维的粗光束和精细光束控制功能。电控双轴微镜在提供大角度光束偏转方面是极好的，而液晶装置提供优异的小光束偏转。这导致机械稳健的光束控制模块。与EO装置耦合的多像素MEMS镜装置选项还可以提供同时多光束发生能力。此外，对于MEMS和EO器件，使用宏观像素提供对整个模块的单像素依赖性灾难性故障的抵抗。镜面两轴控制可以补充额外的平移镜运动，给出两个3-D波束形成器的级联的最终选择。

2. 发明授权

US5617109A Three terminal liquid crystal lens cell 失效
标题翻译：三端液晶透镜单元
公开(公告)号：US5617109A
公开(公告)日：1997-04-01
申请号：US348404
申请日：1994-12-02
申请人： Michael C. DeJule , Nabeel A. Riza
发明人： Michael C. DeJule , Nabeel A. Riza
IPC分类号： G02F1/1343 , G02F1/29 , G09G3/36
CPC分类号： G02F1/134309 , G02F1/29 , G02F2001/294
摘要： A three-terminal liquid crystal (LC) lens cell includes a center-biased symmetrical quadratic electrode network that has a center electrode electrically coupled to a bias voltage source, and a first and a second network electrode circuit. The respective bias voltage terminus of each network electrode circuit is coupled to the bias voltage source, and the respective control voltage terminus of each network electrode circuit is electrically coupled to a selectively variable lens focus control power supply. Each network electrode circuit further includes respective pluralities of network electrodes electrically coupled together in series and quadratic gradient network biasing resistors respectively electrically coupled therebetween to provide a symmetric quadratic voltage pattern. Each LC cell further is typically thin-film resistor biased, having an optically transparent electrically resistive planar layer disposed in electrical contact with each electrode in the center-biased symmetrical quadratic electrode network.
摘要翻译：三端液晶（LC）透镜单元包括具有电耦合到偏置电压源的中心电极和第一和第二网络电极电路的中心偏置对称二次电极网络。每个网络电极电路的各自的偏置电压端子耦合到偏置电压源，并且每个网络电极电路的相应的控制电压端电耦合到选择性可变的透镜聚焦控制电源。每个网络电极电路还包括分别电耦合在一起的多个网络电极和分别电耦合在其间的二次梯度网络偏置电阻器，以提供对称的二次电压模式。每个LC单元进一步通常是薄膜电阻器偏置的，具有设置成与中心偏置的对称二次电极网络中的每个电极电接触的光学透明电阻平面层。

3. 发明授权

US08783874B1 Compressive optical display and imager 有权
标题翻译：压缩光学显示和成像仪
公开(公告)号：US08783874B1
公开(公告)日：2014-07-22
申请号：US13353016
申请日：2012-01-18
申请人： Nabeel A. Riza
发明人： Nabeel A. Riza
IPC分类号： G03B21/28 , G02B27/10 , H01S3/10
CPC分类号： G02B26/105 , G02B26/101 , H04N9/3135
摘要： Methods and systems for a compressive optical display and imager using optical scanning and selection and three-dimensional beamforming optics. Standard pixel data can generate a compressed image data set having custom pixel sizes, locations, and intensities. A 3-D beamformer optic adjusts its focus to produce the largest focused beam spot on the display screen corresponding to an image zone compressed pixel. Using scan mirror angular controls, display image space is painted using minimal numbers of laser beam spots whose sizes depend on the compressed sensed image. The imager includes movable reflecting optics to reflect an optical image and controllable imaging optics to pass the reflected optical image toward a digital micromirror that reflects +/−θ optical beams into +/− θ optical beam paths. A controller controls reflecting optics and agile front end imaging optics to receive an electronic image signal corresponding to detected +/−θ optical beams.
摘要翻译：使用光学扫描和选择以及三维波束成形光学的压缩光学显示器和成像器的方法和系统。标准像素数据可以生成具有自定义像素大小，位置和强度的压缩图像数据集。 3-D波束形成器光学器件调整其聚焦以在对应于图像区域压缩像素的显示屏上产生最大的聚焦光束点。使用扫描镜角度控制，使用最小数量的激光束点绘制显示图像空间，其尺寸取决于压缩的感测图像。成像器包括可反射光学器件以反射光学图像和可控成像光学器件以将反射的光学图像朝向反映+ / - 的数字微镜反射; 光束进入+/-角度; 光束路径。控制器控制反射光学器件和敏捷前端成像光学器件以接收对应于检测到的+ / - 的电子图像信号; 光束。

4. 发明授权

US08170384B1 Hybrid photonic signal processing modules 失效
标题翻译：混合光信号处理模块
公开(公告)号：US08170384B1
公开(公告)日：2012-05-01
申请号：US12398472
申请日：2009-03-05
申请人： Nabeel A. Riza
发明人： Nabeel A. Riza
IPC分类号： G02B6/26 , G02B6/42
CPC分类号： G02B6/2861 , G02B6/12019 , G02B6/29316 , G02B6/3516 , G02B17/023 , H04J14/02
摘要： Methods, systems, apparatus and devices for a variable fiber optic delay line that includes an electro-optic modulator for receiving and modulating an input signal, a switchless discrete long time delay module for injecting a long time delay into the modulated signal to produce a long delayed signal, and a switchless analog variable short delay module injecting a variable short time delay into the long delayed signal for a delayed output signal having a delay approximately equal to the long plus the short time delay. The module may also include non-dispersive single mode fibers for transmission between components and a circulator coupled for routing the input signal to the discrete long time delay module and routing the first delayed output signal to the analog variable short delay module. The VFODL can be used for Radio Frequency, digital electrical signals requiring time delay and amplitude processing or optical signal processing.
摘要翻译：用于可变光纤延迟线的方法，系统，装置和装置，其包括用于接收和调制输入信号的电光调制器，用于将长时间延迟注入调制信号产生长时间的无开关离散长时间延迟模块延迟信号和无切换模拟可变短延迟模块，对具有延迟近似等于长加短时间延迟的延迟输出信号向长延迟信号中注入可变短时间延迟。该模块还可以包括用于在部件之间传输的非分散单模光纤和耦合的循环器，用于将输入信号路由到离散的长时间延迟模块，并将第一延迟输出信号路由到模拟可变短延迟模块。 VFODL可用于射频，需要时间延迟和幅度处理或光信号处理的数字电信号。

5. 发明授权

US08107056B1 Hybrid optical distance sensor 有权
标题翻译：混合光学距离传感器
公开(公告)号：US08107056B1
公开(公告)日：2012-01-31
申请号：US12560667
申请日：2009-09-16
申请人： Nabeel A. Riza
发明人： Nabeel A. Riza
IPC分类号： G01C3/08
CPC分类号： G01C3/32 , G01C3/08
摘要： Methods and systems for a hybrid optical device for high dynamic range high resolution remote sensing of object distance, object motion displacement, object three dimensional structure, object spatial profile, and measurement of liquid levels, and different matter interface positions. The device uses a hybrid digital-analog controlled variable focal length lens system to target both specular and diffuse objects. The spatial processing methods and systems can include time-frequency processing optical distance measurement methods to enable a robust hybrid-technique sensor.
摘要翻译：用于高动态范围高分辨率遥感物体距离，物体运动位移，物体三维结构，物体空间分布和液位测量以及不同物质界面位置的混合光学装置的方法和系统。该器件使用混合数字模拟控制可变焦距透镜系统来瞄准镜面和漫反射物体。空间处理方法和系统可以包括时频处理光距离测量方法，以实现鲁棒的混合技术传感器。

6. 发明授权

US5512907A Optical beamsteering system 失效
标题翻译：光束导向系统
公开(公告)号：US5512907A
公开(公告)日：1996-04-30
申请号：US317055
申请日：1994-10-03
申请人： Nabeel A. Riza
发明人： Nabeel A. Riza
IPC分类号： H01Q3/26 , H01Q3/22
CPC分类号： H01Q3/2676
摘要： An optical beamsteering system for providing a plurality of respectively time-delayed optical signals to control a phased array of transducer elements or the like includes an optical signal processing system having a plurality of optical time delay units optically coupled together in a cascade. In each optical time delay unit includes a respective multiple-pass optical delay path apparatus in which respective optical signals passing through the delay path apparatus pass along either a direct path or a delay path dependent upon the polarization orientation of the light. The delay path apparatus includes optical components disposed such that optical signals passing along the delay path pass through a given fiber delay line twice before passing from the multiple-pass optical time delay unit so as to cancel out any uncommanded polarization shifts resulting from passage of the optical signal through the fiber.
摘要翻译：用于提供多个分别时间延迟的光信号以控制换能器元件等的相控阵列的光束引导系统包括具有多个光学时间延迟单元的光信号处理系统，其以级联方式耦合在一起。在每个光学时间延迟单元中包括相应的多遍光学延迟路径装置，其中通过延迟路径装置的各个光信号通过取决于光的偏振取向的直接路径或延迟路径。延迟路径装置包括光学部件，其设置成使得沿着延迟路径通过的光信号在从多路光学时间延迟单元通过之前经过给定的光纤延迟线两次，以便抵消由于通过所产生的任何未命令的偏振偏移光信号通过光纤。

7. 发明授权

US5410147A Optical communication system using coplanar light modulators 失效
标题翻译：使用共面光调制器的光通信系统
公开(公告)号：US5410147A
公开(公告)日：1995-04-25
申请号：US932819
申请日：1992-08-20
申请人： Nabeel A. Riza , John E. Hershey , Amer A. Hassan
发明人： Nabeel A. Riza , John E. Hershey , Amer A. Hassan
IPC分类号： G02F1/21 , H04B10/04 , G02F1/13
CPC分类号： H04B10/50 , G02F1/21
摘要： An optical communications system includes apparatus for interferometric signaling in which light signals are propagated from a first location so as to form at least one predetermined interference pattern at a second location remote from the first location and then the received light signals are demodulated at the second location. The apparatus includes a substantially coherent light source and a plurality of adjacent, substantially coplanar optical modulators in the path of the emitted light.
摘要翻译：光通信系统包括用于干涉信令的设备，其中光信号从第一位置传播，以便在远离第一位置的第二位置处形成至少一个预定的干扰图案，然后在第二位置解调所接收的光信号。该装置在发射光的路径中包括基本上相干的光源和多个相邻的基本共面的光学调制器。

8. 发明授权

US5329118A Optical transversal filter 失效
标题翻译：光学横向滤波器
公开(公告)号：US5329118A
公开(公告)日：1994-07-12
申请号：US996203
申请日：1992-12-23
申请人： Nabeel A. Riza
发明人： Nabeel A. Riza
IPC分类号： G01S7/487 , G02B6/28 , H01Q3/26 , H01J5/16
CPC分类号： H01Q3/2676 , G01S7/487 , G02B6/2861
摘要： An optical transversal filter includes a processing system having a light source adapted to be modulated by an input electromagnetic signal and generate a plurality of collimated optical signals, a cascade of optical time delay units sequentially coupled to act upon the collimated optical signals passing from the light source to selectively differentially time delay respective ones of the optical signals, an optical trimmer device coupled to receive the differentially time delayed optical signals and to selectively attenuate respective ones of those signals, and a filter output assembly which receives and sums the optical signals from the trimmer device optically and converts the sum to a corresponding filtered electrical signal, or alternatively, converts the respective optical signals to electrical signals and electrically sums the signals. Each optical time delay unit includes a spatial light modulator having liquid crystal pixels disposed such that the polarization orientation of each respective optical signal is controlled by passing respective optical signals through respective ones of the pixels. Dependent on its polarization orientation, each optical signal passes through a delay assembly optically coupled to the respective spatial light modulator in the optical time delay unit on either a direct path or a delay path.
摘要翻译：光学横向滤波器包括处理系统，该处理系统具有适于由输入电磁信号调制的光源并产生多个准直光学信号;光学时间延迟单元级联，其顺序耦合以作用于从光通过的准直光信号源极以有选择地差分时间延迟相应的光信号;光学修剪器装置，被耦合以接收差分时间延迟的光信号并且选择性地衰减这些信号中的相应信号;以及滤波器输出组件，其接收来自光学地修剪器件，并将和转换为对应的滤波电信号，或者替代地，将相应的光信号转换成电信号并对信号进行电加和。每个光学时间延迟单元包括具有液晶像素的空间光调制器，所述液晶像素被布置成使得通过使相应的光信号通过相应的像素来控制各个光信号的偏振取向。取决于其偏振取向，每个光信号通过延迟组件，该延迟组件在直接路径或延迟路径上的光学时间延迟单元中光耦合到相应的空间光调制器。

9. 发明授权

US5274385A Optical time delay units for phased array antennas 失效
标题翻译：用于相控阵天线的光时延单元
公开(公告)号：US5274385A
公开(公告)日：1993-12-28
申请号：US900877
申请日：1992-06-18
申请人： Nabeel A. Riza
发明人： Nabeel A. Riza
IPC分类号： H01Q3/26 , H01Q3/22 , H01T5/16
CPC分类号： H01Q3/2676
摘要： A phased array antenna system having an optical signal processing system includes a number of optical time delay units to generate differentially time-delayed optical signals. Each optical time delay unit is configured to generate a time delay through the use of either an optical fiber or free-space optical propagation delay assembly. Differentially time delayed optical signals are generated by controlling, with a spatial light modulator, the polarization of each light beam entering each time delay unit so that each respective light beam is deflected along either a direct path or a delay path dependent on its linear polarization. Each time delay unit includes an imaging system having a selected imaging ratio, with spherical lenses disposed in the delayed and direct light paths of the unit to provide imaging between the spatial light modulator planes. High extinction ratio polarizers are positioned in each of the delayed and direct paths. Spatial filters are further disposed in each spherical lens pair.
摘要翻译：具有光信号处理系统的相控阵天线系统包括多个光时延单元，以产生差分时间延迟的光信号。每个光学时间延迟单元被配置为通过使用光纤或自由空间光学传播延迟组件来产生时间延迟。通过利用空间光调制器控制进入每个时间延迟单元的每个光束的偏振使得各个光束沿着直接路径或取决于其线偏振的延迟路径偏转来产生差分时间延迟的光信号。每个延迟单元包括具有所选成像比的成像系统，其中球面透镜设置在该单元的延迟和直接光路中，以在空间光调制器平面之间提供成像。高消光比偏振器位于每个延迟和直接路径中。在每个球面透镜对中进一步设置空间滤光器。

10. 发明授权

US5191339A Phased-array antenna controller 失效
标题翻译：相控阵天线控制器
公开(公告)号：US5191339A
公开(公告)日：1993-03-02
申请号：US847155
申请日：1992-03-05
申请人： Nabeel A. Riza
发明人： Nabeel A. Riza
IPC分类号： H01Q3/22 , H01Q3/26
CPC分类号： H01Q3/22 , H01Q3/2676
摘要： A compact, liquid crystal-based acousto-optical control system for large (>1000 elements) phase-based phased array antennas 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 a microwave signal that preferably has a frequency of one-half the desired radar carrier frequency. The AODs and associated polarization rotators generate a plurality of optical signal pairs, each pair having one positive and one negative first order doppler shifted light beam, the positive and negative doppler shifted beams being orthogonally linearly polarized. A phase delay is introduced in a predetermined one of the light beams in each optical signal pair via electrical control of an array of birefringent-mode nematic liquid crystal cells in a spatial light modulator (SLM), while the non-phase delayed light beam in each pair serves as a reference for interferometric detection. After passing through the SLM, the phase-delayed light beam is combined with the unshifted light beam via a 45 degree orientation polarizer; this signal is then used via heterodyne detection by a photodiode to generate the radar carrier with the appropriate phase shift. The system operates in both the antenna transmit and receive modes, and provides a wide (GHz) tunable bandwidth, intrapulse beamforming, and analog phase control.
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型基于液晶的声光控制系统包括提供在线干涉光学架构中处理的偏振激光束的激光源，其使用两个声光偏转器（ AOD）由微波信号驱动，其优选地具有所需雷达载波频率的一半的频率。 AOD和相关的偏振旋转器产生多个光信号对，每对具有一个正和一个负一阶多普勒偏移光束，正和负多普勒偏移的波束是正交线偏振的。在空间光调制器（SLM）中通过双折射模式向列型液晶单元阵列的电控制，在每个光信号对中的预定一个光束中引入相位延迟，而非相位延迟光束每对都用作干涉检测的参考。通过SLM后，经相位延迟的光束经45度取向偏振器与未移动的光束组合; 该信号然后通过光电二极管的外差检测来产生具有适当相移的雷达载波。该系统在天线发射和接收模式下工作，并提供宽（GHz）可调谐带宽，脉冲波束形成和模拟相位控制。

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