专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5048935A Method for adaptive correction of the phase non-uniformity of a liquid crystal light valve 失效
标题翻译：液晶光阀相位不均匀性的自适应校正方法
公开(公告)号：US5048935A
公开(公告)日：1991-09-17
申请号：US947575
申请日：1986-12-24
申请人： Uzi Efron , Bernard H. Soffer , Richard C. Lind , David M. Pepper , Thomas R. O'Meara
发明人： Uzi Efron , Bernard H. Soffer , Richard C. Lind , David M. Pepper , Thomas R. O'Meara
IPC分类号： G01J9/00 , G02B26/06
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。

2. 发明授权

US5051571A Cascaded adaptive optics system 失效
标题翻译：级联自适应光学系统
公开(公告)号：US5051571A
公开(公告)日：1991-09-24
申请号：US947569
申请日：1986-12-02
申请人： Wilbur P. Brown, Jr. , Thomas R. O'Meara , David M. Pepper , Uzi Efron , Bernard H. Soffer
发明人： Wilbur P. Brown, Jr. , Thomas R. O'Meara , David M. Pepper , Uzi Efron , Bernard H. Soffer
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。

3. 发明授权

US4686647A Numerical division of two arrays by optical processing 失效
标题翻译：通过光学处理对两个阵列进行数值分割
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
IPC分类号： G06E3/00 , G06G9/00
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。

4. 发明授权

US4679910A Dual liquid-crystal cell-based visible-to-infrared dynamic image converter 失效
标题翻译：双液晶单元为基础的可见到红外动态图像转换器
公开(公告)号：US4679910A
公开(公告)日：1987-07-14
申请号：US714145
申请日：1985-03-20
申请人： Uzi Efron , Bernard H. Soffer
发明人： Uzi Efron , Bernard H. Soffer
IPC分类号： G02F1/1335 , G02F1/1347 , G02F1/135
CPC分类号： G02F1/1347 , G02F1/135 , G02F1/133524 , G02F1/133536
摘要： A visible to infrared dynamic image converter light valve includes two liquid crystal layers disposed on opposite sides of a photoconductive substrate. The two liquid crystal layers spatially modulate an incident infrared beam by polarization rotation. A voltage is applied across the two liquid crystal layers, with the layers being responsive to the applied voltage, to vary the polarization rotation. The photoconductive layer receives and absorbs a visible wavelength image and spatially modulates the voltage across the two liquid crystal layers responsively to image intensity spatially to vary the polarization rotation. A mirror reflects the incident infrared beam back through the first and second layers such that the beam passes through the liquid crystal layers twice and is polarization rotated in proportion to the visible wavelength image. A wire grid polarizer converts the polarization rotation of the infrared beam to output intensity modulation to produce an infrared image.
摘要翻译：可见红外动态图像转换器光阀包括设置在光导基板的相对侧上的两个液晶层。两个液晶层通过偏振旋转空间调制入射的红外光束。在两个液晶层之间施加电压，其中层响应于所施加的电压，以改变偏振旋转。光电导层接收并吸收可见波长图像，并且在空间上响应于图像强度空间调制两个液晶层上的电压以改变偏振旋转。反射镜将入射的红外光束反射回第一和第二层，使得光束通过液晶层两次，并且与可见波长图像成比例地偏振旋转。线栅偏振器将红外光束的偏振旋转转换为输出强度调制以产生红外图像。

5. 发明授权

US5151814A Phased array for optical beam control 失效
标题翻译：光束控制相控阵
公开(公告)号：US5151814A
公开(公告)日：1992-09-29
申请号：US673175
申请日：1991-03-18
申请人： Jan Grinberg , Thomas R. O'Meara , Yuri Owechko , Melvin E. Pedinoff , Bernard H. Soffer
发明人： Jan Grinberg , Thomas R. O'Meara , Yuri Owechko , Melvin E. Pedinoff , Bernard H. Soffer
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。

6. 发明授权

US4750153A Associative holographic memory apparatus employing phase conjugate mirrors and a two-wave mixing contra-directional coherent image amplifier 失效
标题翻译：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
申请人： Yuri Owechko , Emanuel Marom , Bernard H. Soffer , Gilmore J. Dunning
发明人： Yuri Owechko , Emanuel Marom , Bernard H. Soffer , Gilmore J. Dunning
IPC分类号： G06N3/067 , G11C13/04 , G11C15/00 , G03H1/02
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。

7. 发明授权

US4747069A Programmable multistage lensless optical data processing system 失效
标题翻译：可编程多级无镜头光学数据处理系统
公开(公告)号：US4747069A
公开(公告)日：1988-05-24
申请号：US70083
申请日：1987-07-02
申请人： Jan Grinberg , Bernard H. Soffer
发明人： Jan Grinberg , Bernard H. Soffer
IPC分类号： G06E3/00 , G06G9/00
CPC分类号： G06E3/005
摘要： An optical data processing system employing a programmable optical data processor for processing an optical data beam comprising a plurality of zero, one and two-dimensional modulators for spatially modulating the optical data beam, the modulators being interconnected such that lenses are not necessary to accomplish the focusless transfer of the optical data beam between the modulators. The plurality of modulators are controlled so as to permit the programmable processing of the optical data beam. The optical data processor realized is physically solid and compact and is readily capable of performing a wide variety of optical computations.
摘要翻译：一种光学数据处理系统，其采用可编程光学数据处理器来处理包括多个零，一维和二维调制器的光学数据光束，用于空间调制光学数据光束，所述调制器互连，使得透镜不需要完成光学数据光束在调制器之间的无偏转移。多个调制器被控制以允许光学数据光束的可编程处理。实现的光学数据处理器物理上坚固紧凑，并且能够执行各种各样的光学计算。

8. 发明授权

US4961615A Associative memory system with spatial light modulator 失效
标题翻译：具有空间光调制器的关联记忆系统
公开(公告)号：US4961615A
公开(公告)日：1990-10-09
申请号：US356808
申请日：1989-05-24
申请人： Yuri Owechko , Bernard H. Soffer
发明人： Yuri Owechko , Bernard H. Soffer
IPC分类号： G11C15/00
CPC分类号： G11C15/00
摘要： An associative memory system is provided which incorporates a spatial light modulator (SLM) and thresholding components. In the preferred embodiment, a Fourier transform hologram is used to convolve a reference beam with correlated input images and stored object images. An iteration and feedback loop is provided which is used to derive an enhanced reference beam for use in matching and enhancing the associative memory of the hologram with the object input plane image. The iteration loop of SLM and optical amplifying components comprises a liquid crystal light valve (LCLV) which receives the correlation plane image and provides that image in the form of a spatially phase-modulated and amplitude modulated signal to a polarizing thresholding analyzer device. The analyzer/polarizer is adjustable and threshold limits the data at fast rates and, is used in the preferred embodiment to threshold the data with reference to the greatest amplitude portion of the correlation spot provided to the LCLV. After the optical analyzer/polarizer threshold has processed the signal, an improved signal is provided to the writing photoconductor side of the LCLV. This processed signal is used to phase-modulate a projection light readout beam. A polarizing beam splitter converts the phase modulation of the readout beam to an amplitude modulation wherein an enhanced reference beam is derived which is processed back to the hologram for readout at the output plane of the system. In this manner a variable-gain fast response spatial light modulator component system is provided for use as an associative memory.
摘要翻译：提供了一种结合存储器系统，其包括空间光调制器（SLM）和阈值分量。在优选实施例中，傅里叶变换全息图用于将参考光束与相关的输入图像和存储的对象图像进行卷积。提供迭代和反馈回路，其用于导出用于匹配和增强全息图的关联存储器与对象输入平面图像的增强参考光束。 SLM和光放大组件的迭代循环包括一个液晶光阀（LCLV），它接收相关平面图像，并以空间相位调制和幅度调制信号的形式将该图像提供给极化阈值分析器装置。分析器/偏振器是可调节的，阈值以快速率限制数据，并且在优选实施例中用于参考提供给LCLV的相关点的最大幅度部分来阈值数据。在光学分析仪/偏振器阈值处理该信号之后，将改进的信号提供给LCLV的写入感光体侧。该处理信号用于相位调制投影光读出光束。偏振分束器将读出光束的相位调制器转换成幅度调制，其中导出增强的参考光束，该参考光束被加工回到全息图，以在系统的输出平面读出。以这种方式，提供可变增益快速响应空间光调制器组件系统用作关联存储器。

9. 发明授权

US4934782A Optical thresholding apparatus and method 失效
标题翻译：光学阈值设备及方法
公开(公告)号：US4934782A
公开(公告)日：1990-06-19
申请号：US282889
申请日：1988-12-09
申请人： Bernard H. Soffer , Yuri Owechko
发明人： Bernard H. Soffer , Yuri Owechko
IPC分类号： G02B27/46 , G06K9/58 , G06G7/02
CPC分类号： G02B27/46 , G06K9/58
摘要： An apparatus and method for processing optical beams designed to adaptively spatially threshold or filter an intensity histogram spectrum for re-transformation to a two-dimensional thresholded optical output. Such apparatus and method is used in optical computing and logic processing to selectively pass only certain light intensities, thereby blocking undesirable background noise while passing the desired signals. An incoming histogram light beam, containing an optical position distribution corresponding to the intensity distribution of an original optical beam, is split into first and second beams. The first beam is directed at a light detector array which transforms the optical position intensities of the first bema into directly proportional electrical signals. These signals are sent to a microprocessor which analyzes this input, determines the intensity distribution, calculates the algebraic mean and variance, sets the intensity threshold level based on pre-set information, and sends an electronic voltage signal to an optical selective reflector. The optical reflector, preferably a CCD LCLV, is positioned to receive the second split beam, and is instructed by the electronic voltage signal to selectively reflect only certain optical intensities onto an inverse Fourier transform lens. This lens re-transforms the quasi-one-dimensional second split beam into the desired two-dimensional thresholded optical output.
摘要翻译：一种用于处理光束的装置和方法，其被设计成自适应地空间阈值或滤波强度直方图谱，以便重新转换为二维阈值光输出。这种装置和方法用于光学计算和逻辑处理中，以选择性地仅通过某些光强度，从而在传递所需信号的同时阻止不期望的背景噪声。包含与原始光束的强度分布对应的光学位置分布的入射直方图光束被分割成第一和第二光束。第一个光束被引导到光检测器阵列，其将第一个bema的光学位置强度变换成直接成比例的电信号。这些信号被发送到分析该输入的微处理器，确定强度分布，计算代数均值和方差，基于预置信息设置强度阈值电平，并将电子电压信号发送到光学选择反射器。光反射器（优选CCD LCLV）被定位成接收第二分束，并且由电子电压信号指示，以仅选择性地将某些光强度反射到傅里叶逆变换透镜上。该透镜将准一维第二分割光束重新变换为期望的二维阈值光学输出。

10. 发明授权

US4888724A Optical analog data processing systems for handling bipolar and complex data 失效
标题翻译：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
IPC分类号： G02F3/00 , G06E3/00
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。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式