公开(公告)号：US20150138534A1

公开(公告)日：2015-05-21

申请号：US14533498

申请日：2014-11-05

Applicant: ELTA SYSTEMS LTD.

Inventor： Gil TIDHAR

IPC: F41G3/14 ,  G01J3/447 ,  G01J3/443

CPC classification number: F41G3/147 ,  G01J3/0224 ,  G01J3/36 ,  G01J3/443 ,  G01J3/447 ,  G01S3/784 ,  H04N5/332

Abstract: A multiband imaging system comprising: an optical module configured for acquiring simultaneously images from a common field-of-view (FOV) scene in a short wavelength spectral band and in a long wavelength spectral band, the optical module comprising a polarizer configured for applying polarization filtering to electromagnetic radiation of the long wavelength spectral band; and a processing module configured to analyze data indicative of received irradiance distribution between the short and long wavelength spectral bands.

Abstract translation: 一种多频带成像系统，包括：光学模块，被配置为同时从短波长频谱带和长波长频谱带中的公共视场（FOV）场景中拍摄图像，所述光学模块包括被配置为施加偏振的偏振器 过滤长波长光谱带的电磁辐射; 以及处理模块，被配置为分析指示所述短波长和长波长光谱带之间的接收的辐照度分布的数据。

公开(公告)号：US20150097118A1

公开(公告)日：2015-04-09

申请号：US14382333

申请日：2013-03-01

Applicant: BEIHANG UNIVERSITY

Inventor： Zheng Zheng ,  Xin Zhao ,  Lei Liu ,  Jiansheng Liu

IPC: G01J3/10 ,  G01J3/447 ,  G01J3/42

CPC classification number: G01J11/00 ,  G01J1/10 ,  G01J3/0224 ,  G01J3/0245 ,  G01J3/10 ,  G01J3/108 ,  G01J3/42 ,  G01J3/433 ,  G01J3/447 ,  G02F1/353 ,  G02F1/365 ,  G02F1/37 ,  G02F2203/13 ,  H01S3/0092 ,  H01S3/06791 ,  H01S3/0809 ,  H01S3/1106 ,  H01S3/1112 ,  H01S3/2391

Abstract: A method and a system for measuring an optical asynchronous sample signal. The system for measuring an optical asynchronous sampling signal comprises a pulsed optical source capable of emitting two optical pulse sequences with different repetition frequencies, a signal optical path, a reference optical path, and a detection device. Since the optical asynchronous sampling signal can be measured by merely using one pulsed optical source, the complexity and cost of the system are reduced. A multi-frequency optical comb system using the pulsed optical source and a method for implementing the multi-frequency optical comb are further disclosed.

公开(公告)号：US20150071485A1

公开(公告)日：2015-03-12

申请号：US14298747

申请日：2014-06-06

Applicant: Digimarc Corporation

Inventor： Geoffrey B. Rhoads ,  Alastair M. Reed

IPC: G06T1/00 ,  H04N1/32

CPC classification number: H04N1/32309 ,  A61B5/0075 ,  G01J3/0272 ,  G01J3/2823 ,  G01J3/36 ,  G01J3/447 ,  G01J3/51 ,  G01J3/513 ,  G06T1/0028 ,  G06T2201/0051 ,  H04N1/32144 ,  H04N5/2254 ,  H04N5/2256 ,  H04N5/2354 ,  H04N9/045 ,  H04N21/8358 ,  H04N2201/3233 ,  H05B33/0869 ,  H05B37/0272

Abstract: Information is encoded in an image signal by exploiting spectral differences between colors that appear the same when rendered. These spectral differences are detected using image sensing that discerns the spectral differences. Spectral difference detection methods include using sensor-synchronized spectrally-structured-light imaging, 3D sensors, imaging spectrophotometers, and higher resolution Bayer pattern capture relative to resolution of patches used to convey a spectral difference signal.

Abstract translation: 通过利用呈现时出现的颜色之间的光谱差异，信息被编码在图像信号中。 使用识别光谱差异的图像检测来检测这些光谱差异。 光谱差异检测方法包括使用传感器同步的光谱结构光成像，3D传感器，成像分光光度计和相对于用于传送光谱差信号的贴片的分辨率的更高分辨率拜耳图案捕获。

公开(公告)号：US08964072B2

公开(公告)日：2015-02-24

申请号：US13578444

申请日：2011-02-24

Applicant: Shlomo Vorovitchik

Inventor： Shlomo Vorovitchik

IPC: H04N13/04 ,  H04N3/14 ,  G02B27/28

CPC classification number: G02B27/288 ,  G01J3/0224 ,  G01J3/2803 ,  G01J3/447 ,  G02B5/201 ,  G02B5/3025

Abstract: A method, system and polarization filter for analyzing polarization properties of light are described, the method comprising: receiving image data from a plurality of image sensor cells, the image sensor cells comprised in an image sensing system; separating from the received image data polarization information and scene image data of a scene being captured; and processing the polarization information to deduce information. Additionally, a polarization filter for analyzing polarization properties of light is described, the polarization filter comprising an array of polarization cells in various directions of polarization, the polarization filter comprising a core array of at least horizontal polarization filter cell, vertical polarization filter cell, no-polarization filter cell and circular polarization filter cell.

Abstract translation: 描述了用于分析光的偏振特性的方法，系统和偏振滤光器，所述方法包括：从多个图像传感器单元接收图像数据，所述图像传感器单元包括在图像感测系统中; 与正在捕获的场景的接收图像数据偏振信息和场景图像数据分离; 并处理偏振信息以推导出信息。 另外，描述了用于分析光的偏振特性的偏振滤光器，所述偏振滤光器包括偏振方向上的极化单元的阵列，所述偏振滤光器包括至少水平偏振滤光器单元的芯阵列，垂直偏振滤光器单元，否 极化滤波电池和圆极化滤波电池。

公开(公告)号：US20140293091A1

公开(公告)日：2014-10-02

申请号：US14201852

申请日：2014-03-08

Applicant: Digimarc Corporation

Inventor： Geoffrey B. Rhoads ,  Hugh L. Brunk ,  John D. Lord

IPC: G01J3/28 ,  H04N9/04

CPC classification number: H04N5/2256 ,  A61B5/0075 ,  A61B5/6898 ,  G01J3/0229 ,  G01J3/0272 ,  G01J3/10 ,  G01J3/2823 ,  G01J3/36 ,  G01J3/447 ,  G01J3/51 ,  G01J3/513 ,  G06K9/4652 ,  G06K9/481 ,  G06K9/6256 ,  G06K9/628 ,  H04N5/2254 ,  H04N5/2354 ,  H04N9/045 ,  H04N9/69 ,  H04N9/73

Abstract: A smartphone is adapted for use as an imaging spectrometer, by synchronized pulsing of different LED light sources as different image frames are captured by the phone's CMOS image sensor. A particular implementation employs the CIE color matching functions, and/or their orthogonally transformed functions, to enable direct chromaticity capture. A great variety of other features and arrangements are also detailed.

Abstract translation: 智能手机适合用作成像光谱仪，通过不同的LED光源的同步脉冲，因为手机的CMOS图像传感器捕获不同的图像帧。 特定的实施方案采用CIE色彩匹配功能和/或其正交变换的功能来实现直接色度捕获。 还详细介绍了各种各样的其他功能和安排。

公开(公告)号：US08749780B2

公开(公告)日：2014-06-10

申请号：US13851984

申请日：2013-03-28

Applicant: JASCO Corporation

Inventor： Tetsuji Sunami ,  Jun Koshoubu

IPC: G01J3/28 ,  G01J3/447 ,  G01J3/02

CPC classification number: G01J3/447 ,  G01J3/0208 ,  G01J3/0237 ,  G01N21/19

Abstract: A circular dichroism (CD) spectrometer includes an alignment mechanism that automatically adjusts the elements thereof at appropriate positions. The spectrometer has a focusing-lens position-and-orientation adjustment mechanism which adjusts the position and the orientation of the detector-side focusing lens. It also has a detector rotation mechanism which adjusts the orientation of the detector. Firstly, a control PC monitors the CD spectrum of D form of optical enantiomers, and the adjustment mechanism adjusts the focusing lens such that the monitored CD spectrum matches the reference spectrum related to the D form. Next, the control PC moniters CD spectrum of L form of optical enantiomers, and the adjustment mechanism adjusts the focusing lens such that the monitored CD spectrum of the D and L forms become symmetrical. And, the rotation mechanism adjusts the orientation of the detector such that the intensity of the detector signal is maximized.

Abstract translation: 圆形二色性（CD）光谱仪包括在适当位置自动调整元件的对准机构。 光谱仪具有调整检测器侧聚焦透镜的位置和取向的聚焦透镜位置和取向调节机构。 它还具有调节检测器方向的检测器旋转机构。 首先，控制PC监视D型光学对映体的CD光谱，并且调节机构调节聚焦透镜，使得所监视的CD光谱与D形式相关的参考光谱相匹配。 接下来，控制PC监视L型光学对映异构体的CD光谱，并且调节机构调节聚焦透镜，使得D和L形式的所监视的CD光谱变得对称。 并且，旋转机构调节检测器的方向，使得检测器信号的强度最大化。

公开(公告)号：US20140111804A1

公开(公告)日：2014-04-24

申请号：US14008495

申请日：2011-03-28

Applicant: Ruediger Maestle

Inventor： Ruediger Maestle

IPC: G01J3/447

CPC classification number: G01J3/447 ,  G01J3/28 ,  H04B10/61 ,  H04B10/613 ,  H04B10/614 ,  H04B10/64

Abstract: A heterodyne optical spectrum analyzer (10) is configured for analyzing spectral information of an optical input signal (15). The analyzer (10) comprises a local oscillator source (20) configured for generating an optical local oscillator signal (38). An optical mixer (25) is configured for receiving the input signal (15) and the local oscillator signal (38), and for outputting a plurality of different combined optical signals (50), each combined optical signal (50) being derived from the input signal (15) and the local oscillator signal (38). An opto-electrical receiver (30) having a plurality of inputs (52) is configured for receiving the combined optical signals (50) and for providing an opto-electrical conversion thereof, and an output (54) for outputting electrical signals representing the received combined optical signals (50). A signal processor (35) is configured for deriving spectral information of the input signal (15) by analyzing the electrical signals. The optical mixer (25) is configured for deriving a plurality of polarization diverse signals from the input signal (15), each polarization diverse signal having a different state of polarization, and deriving a set of balanced quadrature signals for each polarization diverse signal by combining each polarization diverse signal with a signal derived from the local oscillator signal (38). The derived sets of balanced quadrature signals represent the plurality of combined optical signals (50).

Abstract translation: 外差光谱分析仪（10）被配置用于分析光输入信号（15）的光谱信息。 分析器（10）包括配置用于产生光本地振荡器信号（38）的本地振荡器源（20）。 光混合器（25）被配置为接收输入信号（15）和本地振荡器信号（38），并且用于输出多个不同的组合光信号（50），每个组合光信号（50）从 输入信号（15）和本地振荡器信号（38）。 具有多个输入（52）的光电接收器（30）被配置为用于接收组合的光信号（50）并用于提供其光电转换，以及输出（54），用于输出表示所接收的电信号 组合光信号（50）。 信号处理器（35）被配置为通过分析电信号来导出输入信号（15）的频谱信息。 光混合器（25）被配置为从输入信号（15）导出多个偏振分集信号，每个极化分集信号具有不同的偏振状态，并通过组合导出用于每个偏振分集信号的一组平衡正交信号 每个极化不同信号具有从本地振荡器信号（38）导出的信号。 导出的平衡正交信号组表示多个组合光信号（50）。

公开(公告)号：US08605282B2

公开(公告)日：2013-12-10

申请号：US13319177

申请日：2010-05-06

Applicant: David Groswasser

Inventor： David Groswasser

IPC: G01J4/00

CPC classification number: G01N21/1717 ,  G01J3/447 ,  G01N21/23 ,  G01N2021/1727 ,  G01N2021/218

Abstract: The invention provides spectroscopy apparatuses and methods allowing precise overlapping between circularly polarized pump beam and a counter propagating linearly polarized probe beams in a sample which presents unique advantages for precision spectroscopy. In general, the apparatus comprises a phase retarding element with which by double pass by retro reflection of an incident beam turn linearly polarized light to circular and vice versa. This unique configuration enable to design a compact and miniature apparatus which may be applied for measuring polarization spectroscopy, nonlinear optical rotation and coherent population trapping phenomena with certain advantages resulting from the unique optical arrangement. The design of the apparatus further facilitates integration and scaling to produce arrays of units which may be particularly useful for magnetometry applications. Other important applications of the invention include laser frequency stabilization and atomic clocks.

Abstract translation: 本发明提供了光谱装置和方法，其允许圆形偏振泵浦光束和样品中的反向传播线性偏振探测光束之间的精确重叠，这为精确光谱学提供了独特的优点。 通常，该装置包括一个相位延迟元件，通过入射光束的反射双重反射将线性偏振光转换成圆形，反之亦然。 这种独特的配置使得能够设计一种紧凑的和微型的设备，其可以用于测量偏振光谱，非线性旋光和相干群体捕获现象，具有由独特的光学布置导致的某些优点。 该装置的设计进一步促进了整合和缩放以产生可能对磁力计应用特别有用的单元阵列。 本发明的其它重要应用包括激光频率稳定和原子钟。

公开(公告)号：US20130258334A1

公开(公告)日：2013-10-03

申请号：US13851984

申请日：2013-03-28

Applicant: JASCO CORPORATION

Inventor： Tetsuji Sunami ,  Jun Koshoubu

IPC: G01J3/447

CPC classification number: G01J3/447 ,  G01J3/0208 ,  G01J3/0237 ,  G01N21/19

Abstract: A circular dichroism (CD) spectrometer includes an alignment mechanism that automatically adjusts the elements thereof at appropriate positions. The spectrometer has a focusing-lens position-and-orientation adjustment mechanism which adjusts the position and the orientation of the detector-side focusing lens. It also has a detector rotation mechanism which adjusts the orientation of the detector. Firstly, a control PC monitors the CD spectrum of D form of optical enantiomers, and the adjustment mechanism adjusts the focusing lens such that the monitored CD spectrum matches the reference spectrum related to the D form. Next, the control PC moniters CD spectrum of L form of optical enantiomers, and the adjustment mechanism adjusts the focusing lens such that the monitored CD spectrum of the D and L forms become symmetrical. And, the rotation mechanism adjusts the orientation of the detector such that the intensity of the detector signal is maximized.

Abstract translation: 圆形二色性（CD）光谱仪包括在适当位置自动调整元件的对准机构。 光谱仪具有调整检测器侧聚焦透镜的位置和取向的聚焦透镜位置和取向调节机构。 它还具有调节检测器方向的检测器旋转机构。 首先，控制PC监视D型光学对映体的CD光谱，并且调节机构调节聚焦透镜，使得所监视的CD光谱与D形式相关的参考光谱相匹配。 接下来，控制PC监视L型光学对映异构体的CD光谱，并且调节机构调节聚焦透镜，使得D和L形式的所监视的CD光谱变得对称。 并且，旋转机构调节检测器的方向，使得检测器信号的强度最大化。

公开(公告)号：US08514392B1

公开(公告)日：2013-08-20

申请号：US12683154

申请日：2010-01-06

Applicant: Arthur H. Carrieri ,  Jack Copper ,  David J. Owens ,  Erik S. Roese ,  Jerold R. Bottiger ,  Kevin C. Hung

Inventor： Arthur H. Carrieri ,  Jack Copper ,  David J. Owens ,  Erik S. Roese ,  Jerold R. Bottiger ,  Kevin C. Hung

IPC: G01J3/447

CPC classification number: G01J3/447 ,  G01J4/04 ,  G01N21/21 ,  G01N21/3504

Abstract: A system, apparatus, and method of generating Stokes vectors, a Mueller matrix, and polarized scattering from an aerosol aggregate includes providing an incident infrared laser beam; causing the incident infrared laser beam to be polarization-modulated using variable stress/strain birefringence imposed on a ZnSe crystal; defining a Stokes vector associated with the incident infrared laser beam; scattering the incident infrared laser beam from an aggregate aerosol comprising interferents and analyte particles; producing a scattered-beam reactant Stokes vector by causing the scattered incident infrared laser beam to be polarization-modulated; generating a Mueller matrix by taking a transformation of the Stokes vector; and identifying the analyte using the Mueller matrix. The Mueller matrix may comprise M-elements that are functions of a wavelength of the infrared laser beam, backsattering orientation of the infrared laser beam, and a shape and size of the interferents and analyte particles.

Abstract translation: 产生斯托克斯矢量，米勒矩阵和来自气溶胶聚集体的极化散射的系统，装置和方法包括提供入射的红外激光束; 使入射红外激光束使用施加在ZnSe晶体上的可变应力/应变双折射进行偏振调制; 定义与入射的红外激光束相关联的斯托克斯矢量; 从包含干扰物和分析物颗粒的聚集气溶胶散射入射的红外激光束; 通过使散射入射的红外激光束进行偏振调制，产生散射光束反应物斯托克斯矢量; 通过采用斯托克斯向量的变换来生成米勒矩阵; 并使用Mueller矩阵识别分析物。 Mueller矩阵可以包括作为红外激光束的波长，红外激光束的后向散射取向以及干扰物和分析物颗粒的形状和大小的功能的M元件。