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公开(公告)号：US4871232A
公开(公告)日：1989-10-03
申请号：US130032
申请日：1987-12-07
IPC分类号： G01R23/17
CPC分类号： G01R23/17
摘要： A high frequency spectral analysis system and method operates by modulating an optical beam with a high frequency signal to be analyzed, and sampling the beam simultaneously at periodically spaced locations along its length. The sampled portions are then focused to a spectral mapping. In the preferred embodiment a beam is directed in a zigzag pattern through a plate, one surface of which is totally reflective and the opposite surface of which is partially reflective. Periodic parallel samples are obtained from the minor portions of the beam which are transmitted out of the plate through the partially reflective surface. The totally reflective surface is preferably formed as a series of cylindrical surfaces which focus the beam to small spots at the partially reflective surface, thereby permitting a higher spatial density of samples without overlapping. The plate thickness is selected so that the beam is sampled at the Nyquist rate for the highest frequency contained in the signal of interest.
摘要翻译： 高频谱分析系统和方法通过用待分析的高频信号调制光束并且沿其长度在周期性间隔的位置同时采样光束来操作。 然后将采样的部分聚焦到光谱映射。 在优选实施例中，光束以锯齿形图案通过板，其一个表面是完全反射的，其相对表面是部分反射的。 从束的少部分获得周期性的平行样品，其通过部分反射表面从板上传出。 全反射表面优选地形成为将光束聚焦在部分反射表面处的小斑点的一系列圆柱形表面，从而允许更高的样品空间密度而不重叠。 选择板厚度使得以包含在感兴趣信号中的最高频率的奈奎斯特速率采样波束。
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2.发明授权Optical data processing systems and methods for matrix inversion, multiplication, and addition 失效用于矩阵求逆，乘法和加法的光学数据处理系统和方法
公开(公告)号：US4800519A
公开(公告)日：1989-01-24
申请号：US836675
申请日：1986-03-05
申请人： Jan Grinberg , Yuri Owechko , Bernard H. Soffer , Emanuel Marom
发明人： Jan Grinberg , Yuri Owechko , Bernard H. Soffer , Emanuel Marom
IPC分类号： G02F1/05 , G02F1/13 , G02F3/00 , G06E1/00 , G06E3/00 , G06F7/53 , G06G9/00 , G02F1/03 , G02F1/133
CPC分类号： G06E3/005
摘要： Optical data processing systems are described for processing four NxN matrices A, B, C, D to calculate the expression CA.sup.-1 B+D. Multi-cell spatial light modulators are employed in conjunction with control circuits to perform matrix inversion, multiplication and addition.
摘要翻译： 描述了用于处理四个N×N矩阵A，B，C，D的光学数据处理系统，以计算表达式CA-1B + D。 多单元空间光调制器与控制电路结合使用以执行矩阵求逆，乘法和相加。
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公开(公告)号：US5151814A
公开(公告)日：1992-09-29
申请号：US673175
申请日：1991-03-18
IPC分类号： G02F1/1343 , G02F1/1347 , G02F1/139 , G02F1/29
CPC分类号： G02B27/0087 , G02F1/292 , G02F1/134336 , G02F1/1347 , G02F1/1393 , G02F2203/01 , G02F2203/02 , G02F2203/24
摘要： An optical beam scanner incorporating an array of beam deflection elements commonly controlled to steer an optical beam impingent on the array is described. The beam steering elements are arranged in the array as individually controlled elements and the deflection of the beam is accomplished by setting the phase tilt and the phase offset of each element according to a calculation which removes modulo 2.pi. phase shift from the required position relative to a flat plane. Thus, the array elements can be thin and need only supply about 2 radians of phase shift. These elements may be incorporated in a planar array using beam deflection elements such as liquid crystal beam deflectors by choosing a drive scheme representing either a blazed array or a flat piston array. Operation may be designed for a large range of light wavelengths and the system may efficiently accommodate a combination of the blazed and flat piston techniques to obtain beam deflection characteristics otherwise unavailable by the exclusive use of each individual technique. By use of the liquid crystal phased array approach, rapid, high accuracy, large area beam deflection is possible without the necessity of any moving parts and with low power drive requirements. Phased arrays of the type described above may be arranged in successive parallel planes with a common beam axis to provide two-dimensional beam deflection.
摘要翻译： 描述了一种光束扫描器，其包括通常被控制以引导照射在阵列上的光束的光束偏转元件阵列。 光束操纵元件作为独立控制的元件布置在阵列中，并且通过根据计算来设置每个元件的相位倾斜和相位偏移来实现光束的偏转，该计算从相对于所需位置移除模2π相移 平面飞机 因此，阵列元件可以是薄的，并且仅需要提供约2弧度的相移。 通过选择表示闪耀阵列或平坦活塞阵列的驱动方案，这些元件可以使用诸如液晶束偏转器的光束偏转元件并入平面阵列中。 操作可以设计用于大范围的光波长，并且系统可以有效地适应闪耀和平坦活塞技术的组合以获得否则不能通过各自独占技术的独占使用而获得光束偏转特性。 通过使用液晶相位阵列方法，可以快速，高精度，大面积的光束偏转，而不需要任何移动部件和低功率驱动要求。 上述类型的相控阵列可以布置在具有共同波束轴的连续平行平面中，以提供二维波束偏转。
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公开(公告)号：US4937539A
公开(公告)日：1990-06-26
申请号：US420661
申请日：1989-10-10
IPC分类号： G02F1/1343 , G02F1/1347 , G02F1/139 , G02F1/29
CPC分类号： G02B27/0087 , G02F1/292 , G02F1/134336 , G02F1/1347 , G02F1/1393 , G02F2203/01 , G02F2203/02 , G02F2203/24
摘要： An optical beam scanner incorporating an array of beam deflection elements commonly controlled to steer an optical beam impingent on the array is described. The beam steering elements are arranged in the array as individually controlled elements and the deflection of the beam is accomplished by setting the phase tilt and the phase offset of each element according to a calculation which removes modulo 2.pi. phase shift from the required position relative to a flat plane. Thus, the array elements can be thin and need only supply about 2 radians of phase shift. These elements may be incorporated in a planar array using beam deflection elements such as liquid crystal beam deflectors by choosing a drive scheme representing either a blazed array or a flat piston array. Operation may be designed for a large range of light wavelengths and the system may efficiently accommodate a combination of the blazed and flat piston techniques to obtain beam deflection characteristics otherwise unavailable by the exclusive use of each individual technique. By use of the liquid crystal phased array approach, rapid, high accuracy, large area beam deflection is possible without the necessity of any moving parts and with low power drive requirements. Phased arrays of the type described above may be arranged in successive parallel planes with a common beam axis to provide two-dimensional beam deflection.
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公开(公告)号：US4686647A
公开(公告)日：1987-08-11
申请号：US645573
申请日：1984-08-29
申请人： Bernard H. Soffer , Uzi Efron , Emanuel Marom
发明人： Bernard H. Soffer , Uzi Efron , Emanuel Marom
CPC分类号： G06E3/005
摘要： Apparatus for performing a division of a dividend intensity array by a divisor intensity array on a pixel-by-pixel basis, to yield a quotient intensity array, wherein optical feedback principles are utilized in conjunction with two spatial radiation modulators, so that analog division is achieved. Specifically, a fraction of the output array of a first spatial radiation modulator is provided as the readout array to a second spatial radiation modulator, whose input is the divisor intensity array. The output array of the second image converter is then added to the dividend array and provided as the input to the first spatial radiation modulator, whereupon the output of the first spatial radiation modulator is the pixel-by-pixel quotient array resulting from division of the dividend array by the divisor array.
摘要翻译： 用于通过除数强度阵列逐像素地执行除数强度阵列的划分的装置，以产生商强度阵列，其中光学反馈原理与两个空间辐射调制器结合使用，使得模拟除法 实现了 具体地，第一空间辐射调制器的输出阵列的一部分作为读出阵列被提供给第二空间辐射调制器，其第二空间辐射调制器的输入是除数强度阵列。 然后将第二图像转换器的输出阵列添加到除数阵列，并作为第一空间辐射调制器的输入提供，由此第一空间辐射调制器的输出是逐个像素商数组， 除数数组的除数数组。
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6.发明授权Associative holographic memory apparatus employing phase conjugate mirrors and a two-wave mixing contra-directional coherent image amplifier 失效使用相位共轭反射镜和双波混合对向相干图像放大器的联想全息存储装置
公开(公告)号：US4750153A
公开(公告)日：1988-06-07
申请号：US821237
申请日：1986-01-22
CPC分类号： G11C13/042 , G06N3/067 , G11C15/00
摘要： Associative holography memory apparatus is disclosed which employs a hologram, two phase conjugate mirrors, and a two-wave mixing contra-directional coherent image amplifier. The mirrors and amplifier are arranged to form a conjugate resonator whereby the output image from the apparatus tends to converge to that stored image most closely associated with an input image. Alternate embodiments are described which employ a multiple storage and erasure hologram, and which employ only a single phase conjugate mirror.
摘要翻译： 公开了使用全息图，双相共轭反射镜和双波混合对向相干图像放大器的关联全息存储装置。 反射镜和放大器被布置成形成共轭谐振器，由此来自设备的输出图像倾向于会聚到与输入图像最紧密相关联的存储图像。 描述了采用多重存储和擦除全息图并且仅使用单相共轭反射镜的替代实施例。
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7.发明授权
公开(公告)号：US4739496A
公开(公告)日：1988-04-19
申请号：US786884
申请日：1985-10-11
申请人： Emanuel Marom , Bernard H. Soffer , Yuri Owechko , Gilmore J. Dunning , David M. Pepper , Marvin B. Klein , Richard C. Lind
发明人： Emanuel Marom , Bernard H. Soffer , Yuri Owechko , Gilmore J. Dunning , David M. Pepper , Marvin B. Klein , Richard C. Lind
摘要： Associative holography memory apparatus is disclosed which employs a hologram and two phase conjugate mirrors. The mirrors are arranged to form a conjugate resonator whereby the output image from the apparatus tends to converge to that stored image most closely associated with an input image. Alternate embodiments are described which employ a multiple storage and erasure hologram, and which employ only a single phase conjugate mirror.
摘要翻译： 公开了使用全息图和两相共轭反射镜的关联全息记录装置。 反射镜被布置成形成共轭谐振器，由此来自设备的输出图像倾向于会聚到与输入图像最紧密相关联的存储图像。 描述了采用多重存储和擦除全息图并且仅使用单相共轭反射镜的替代实施例。
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8.发明授权Optical analog data processing systems for handling bipolar and complex data 失效用于处理双极和复杂数据的光学模拟数据处理系统
公开(公告)号：US4888724A
公开(公告)日：1989-12-19
申请号：US181799
申请日：1988-04-15
申请人： Emanuel Marom , Yuri Owechko , Bernard H. Soffer
发明人： Emanuel Marom , Yuri Owechko , Bernard H. Soffer
CPC分类号： G06E3/005
摘要： Optical analog data processing systems are described for handling both bipolar and complex data. Multi-cell spatial light modulators are employed in which a plurality of modulation areas are used in conjunction with space and time mutliplexed configurations to process bipolar and complex data elements. Multi-cell light detector arrays are used to convert modulated light into signals representing the processed data. The processing systems are capable of real time processing of synthetic aperture radar data.
摘要翻译： 描述了用于处理双极和复杂数据的光学模拟数据处理系统。 使用多单元空间光调制器，其中多个调制区域与空间和时间多路复用配置结合使用以处理双极和复数数据元素。 多单元光检测器阵列用于将调制的光转换成表示处理数据的信号。 处理系统能够对合成孔径雷达数据进行实时处理。
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公开(公告)号：US5051571A
公开(公告)日：1991-09-24
申请号：US947569
申请日：1986-12-02
IPC分类号： G02B26/06
CPC分类号： G02B26/06
摘要： A cascaded adaptive optics system for correction of aberrations in a light beam. The system includes a plurality of spatial light modulators (SLMs) in a cascaded arrangement to provide an adaptive optics system characterized by wide range, rapid response, and high resolution. The spatial light modulators may be identical or have characteristics that are complementary in providing a combined output that advantageously corrects for aberrations. A conventional adaptive optics system such as a deformable mirror may be used as one or more of the SLMKs. Liquid crystal light valves (LCLVs) may be advantageously used as one or more of the SLMs in the invention. A single LCLV may be cascaded with itself in a multiple-pass configuration by means of suitable reflectors.
摘要翻译： 用于校正光束中的像差的级联自适应光学系统。 该系统包括多个级联布置的空间光调制器（SLM），以提供以宽范围，快速响应和高分辨率为特征的自适应光学系统。 空间光调制器可以是相同的或具有在提供有利地校正像差的组合输出时互补的特征。 诸如可变形反射镜的常规自适应光学系统可以用作SLMK中的一个或多个。 液晶光阀（LCLV）可以有利地用作本发明中的一个或多个SLM。 单个LCLV可以通过适当的反射器以多通道配置与其自身级联。
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10.发明授权
公开(公告)号：US5048935A
公开(公告)日：1991-09-17
申请号：US947575
申请日：1986-12-24
CPC分类号： G03H1/0005 , G01J9/00 , G02B26/06 , G03H1/2294 , G03H2001/0066 , G03H2225/32
摘要： Apparatus for compensating for inherent distortions in a modified liquid crystal light valve used in an integrated wavefront sensing and wavefront control system for laser optics. A main wavefront sensing and control system utilizes a liquid crystal light valve selected for response speed but having inherent surface non-linearities. A beam from an auxiliary laser is intermittently applied, while the main laser is blocked, to both the fast response LCLV of the main system and to a slower response LCLV of an associated correction system. The second LCLV system corrects for the non-linearities in the surface of the first LCLV and then maintains the stored correction signal for a decay interval which corresponds to several response times of the main LCLV, thus permitting the main LCLV system to perform fast correction of atmospheric aberrations in the laser beam wavefront unaffected by inherent surface non-linearities.
摘要翻译： 用于补偿在用于激光光学的集成波前感测和波前控制系统中使用的改进的液晶光阀中的固有失真的装置。 主波前感测和控制系统利用了选择响应速度但具有固有表面非线性的液晶光阀。 来自辅助激光器的光束在主激光器被阻挡的同时被间歇地施加到主系统的快速响应LCLV和相关校正系统的较慢响应LCLV。 第二LCLV系统校正第一LCLV的表面中的非线性，然后将存储的校正信号维持在对应于主LCLV的几个响应时间的衰减间隔，从而允许主LCLV系统执行快速校正 激光束波前的大气像差不受固有表面非线性的影响。
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