公开(公告)号：US09423302B2

公开(公告)日：2016-08-23

申请号：US14474986

申请日：2014-09-02

Applicant: SHIMADZU CORPORATION

Inventor： Michiaki Owa

IPC: G01J3/45 ,  G01J3/46 ,  G01J3/42 ,  G01J3/02

CPC classification number: G01J3/42 ,  G01J3/02 ,  G01J3/027 ,  G01J3/28

Abstract: A stray light ratio computation unit computes the stray light ratio at a specified wavelength based on the quantity of light at the specified wavelength computed by light quantity computation unit in a state where there is no sample having absorption in the light path and the quantity of light at the specified wavelength computed by light quantity computation unit when the light is transmitted through a sample having absorption at the specified wavelength. Stray light quantity computation unit computes the quantity of stray light at each wavelength through computations using the stray light ratio at the specified wavelength and different unique values for each wavelength (for example, different coefficients for each wavelength, stored in coefficient storage unit).

Abstract translation: 杂散光比计算单元基于在光路中没有吸收样品的状态下的光量计算单元计算的指定波长处的光量和光量来计算指定波长处的杂散光比 当光通过具有指定波长的吸收的样品透射时，由光量计算单元计算出的指定波长。 杂散光量计算单元通过使用指定波长的杂散光比和每个波长的不同唯一值（例如，存储在系数存储单元中的每个波长的不同系数）通过计算来计算每个波长的杂散光量。

公开(公告)号：US09383187B2

公开(公告)日：2016-07-05

申请号：US14440278

申请日：2013-11-01

Applicant: University of Kent

Inventor： Adrian Podoleanu ,  Adrian Bradu

IPC: G01J3/45 ,  G01B9/02

CPC classification number: G01B9/02044 ,  G01B9/02004 ,  G01B9/02064 ,  G01B9/02088 ,  G01B9/02091 ,  G01B2290/60

Abstract: Real-time depth measurements in sensing in spectral domain interferometry and for en-face and cross section image production in optical coherence tomography can operate without any need to linearize the data to maximize the output signal and achieve the theoretical depth resolution. Novel interferometry is disclosed, where parameters of a master interferometer dictate the results in a slave interferometer. The master interferometer can be the same measuring interferometer used in two stages. The master interferometer parameters are at least optical path difference (OPD) or the speed of variation of the OPD in the master interferometer. Coherence gated data are produced from selected axial positions which can be from positive or negative optical path differences, in parallel, enabling generation of en-face (C-scan) OCT images simultaneously from several depths, free from mirror terms, and production of A-scans and B-scan OCT images using plural reflectivity values measured in parallel from different depths within A-scans.

Abstract translation: 在光学相干断层扫描中的频域干涉测量和面内和横截面图像生成中的实时深度测量可以在不需要线性化数据以使输出信号最大化并达到理论深度分辨率的情况下工作。 公开了新型干涉测量法，其中主干涉仪的参数决定了从属干涉仪中的结果。 主干涉仪可以是两个相同的测量干涉仪。 主干涉仪参数至少在主干涉仪中的光程差（OPD）或OPD的变化速度。 从选择的轴向位置产生相干门控数据，该轴向位置可以是平行的正或负光程差，从而能够从几个深度同时生成面对（C扫描）OCT图像，没有镜像条件，并且产生A 扫描和B扫描OCT图像，使用在A扫描内从不同深度并行测量的多个反射率值。

公开(公告)号：US09316540B1

公开(公告)日：2016-04-19

申请号：US14642827

申请日：2015-03-10

Applicant: LightHaus Photonics, Pte. Ltd.

Inventor： Poh Boon Phua

IPC: G01J3/46 ,  G01J3/45 ,  G01J3/447 ,  G01J3/28 ,  G01J3/02

CPC classification number: G01J3/0272 ,  G01J3/0202 ,  G01J3/0205 ,  G01J3/0229 ,  G01J3/0256 ,  G01J3/447 ,  G01J3/4531 ,  G01J3/4532

Abstract: A spectrometer for measuring a spectral signature of an object comprises fringe generating optics for use with a camera and a processor. The fringe generating optics are formed of front optics and birefringent optics. The front optics comprises a diffuser adapted to receive light from the object. The birefringent optics is adapted to receive light from the diffuser and to generate interference fringes. The camera is adapted to receive the interference fringes and the processor generates the spectral signature of the object. This spectrometer is an improved Fourier transform spectrometer suitable for use with digital cameras, such as cameras found in mobile devices.

公开(公告)号：US09297639B2

公开(公告)日：2016-03-29

申请号：US14263031

申请日：2014-04-28

Applicant: Richard Jackson

Inventor： Richard Jackson

IPC: G01B9/02 ,  G01J3/45 ,  G01J3/02 ,  G01J3/453

CPC classification number: G01B9/02049 ,  G01J3/0202 ,  G01J3/0237 ,  G01J3/4535

Abstract: A mechanism that allows for precise motion of the optics of an interferometer is comprised by two or more diaphragm flexures having high lateral stiffness, creating a superior performing Michelson interferometer. When coupled with precise precision control of a mirror surface and a reference laser, the above creates a superior performing Fourier transform spectrometer.

Abstract translation: 允许干涉仪的光学器件的精确运动的机构由具有高横向刚度的两个或更多个隔膜弯曲构成，产生了优异的执行迈克尔逊干涉仪。 当与镜面和参考激光器的精确精确控制相结合时，上述产生了优异的执行傅里叶变换光谱仪。

公开(公告)号：US20160084753A1

公开(公告)日：2016-03-24

申请号：US14957280

申请日：2015-12-02

Applicant: HALLIBURTON ENERGY SERVICES, INC.

Inventor： David L. Perkins

IPC: G01N21/25 ,  E21B49/00 ,  G01N33/24 ,  G01J3/45

CPC classification number: G01N21/25 ,  E21B49/00 ,  E21B49/08 ,  G01J3/0227 ,  G01J3/0229 ,  G01J3/0264 ,  G01J3/0291 ,  G01J3/45 ,  G01J3/4531 ,  G01N21/31 ,  G01N33/0009 ,  G01N33/24 ,  G01N33/28 ,  G01V8/00

Abstract: A spatial heterodyne spectrometer may employ an integrated computational element (ICE) to obtain a measure of one or more fluid properties without requiring any moving parts, making it particularly suitable for use in a downhole environment. One illustrative method embodiment includes: directing light from a light source to illuminate a sample; transforming light from the sample into spatial fringe patterns using a dispersive two-beam interferometer; adjusting a spectral weighting of the spatial fringe patterns using, an integrated computation element (ICE); focusing spectral-weight-adjusted spatial fringe patterns into combined fringe intensities; detecting the combined fringe intensities; and deriving at least one property of the sample.

Abstract translation: 空间外差谱仪可以采用集成的计算元件（ICE）来获得一种或多种流体性质的量度，而不需要任何移动部件，使其特别适用于井下环境。 一个示例性方法实施例包括：引导来自光源的光以照射样品; 使用色散双光束干涉仪将光从样品转变成空间条纹图案; 使用积分计算元件（ICE）来调整空间条纹图案的光谱加权; 将光谱重量调整的空间条纹图案聚焦成条纹强度; 检测组合条纹强度; 并导出样品的至少一个性质。

公开(公告)号：US09291504B2

公开(公告)日：2016-03-22

申请号：US14702342

申请日：2015-05-01

Applicant: VERIFOOD, LTD.

Inventor： Damian Goldring ,  Dror Sharon ,  Guy Brodetzki ,  Amit Ruf ,  Menahem Kaplan ,  Sagee Rosen ,  Omer Keilaf ,  Uri Kinrot ,  Kai Engelhardt ,  Ittai Nir

IPC: G01J3/28 ,  G01J3/45 ,  G01J3/10 ,  G01J3/02 ,  G01J3/12 ,  G01J3/26 ,  G01N21/25

CPC classification number: G01J3/108 ,  G01J3/0205 ,  G01J3/0208 ,  G01J3/0229 ,  G01J3/0256 ,  G01J3/0259 ,  G01J3/0262 ,  G01J3/0264 ,  G01J3/0272 ,  G01J3/0291 ,  G01J3/10 ,  G01J3/12 ,  G01J3/26 ,  G01J3/28 ,  G01J3/2803 ,  G01J3/36 ,  G01J3/45 ,  G01J5/0265 ,  G01J5/10 ,  G01J2003/1226 ,  G01J2003/123 ,  G01J2003/1239 ,  G01N21/255 ,  G01N33/02

Abstract: A spectrometer comprises a plurality of isolated optical channels comprising a plurality of isolated optical paths. The isolated optical paths decrease cross-talk among the optical paths and allow the spectrometer to have a decreased length with increased resolution. In many embodiments, the isolated optical paths comprise isolated parallel optical paths that allow the length of the device to be decreased substantially. In many embodiments, each isolated optical path extends from a filter of a filter array, through a lens of a lens array, through a channel of a support array, to a region of a sensor array. Each region of the sensor array comprises a plurality of sensor elements in which a location of the sensor element corresponds to the wavelength of light received based on an angle of light received at the location, the focal length of the lens and the central wavelength of the filter.

Abstract translation: 光谱仪包括多个隔离光通道，其包括多个隔离光路。 孤立的光路减少光路之间的串扰，并允许光谱仪具有降低的分辨率的长度。 在许多实施例中，隔离的光路包括隔离的平行光路，其允许基本上减小器件的长度。 在许多实施例中，每个隔离的光路从滤光器阵列的滤光片延伸穿过透镜阵列的透镜，通过支撑阵列的通道延伸到传感器阵列的区域。 传感器阵列的每个区域包括多个传感器元件，其中传感器元件的位置基于在该位置处接收的光的角度接收的光的波长，透镜的焦距和透镜的中心波长 过滤。

公开(公告)号：US09291500B2

公开(公告)日：2016-03-22

申请号：US14166995

申请日：2014-01-29

Applicant: RAYTHEON COMPANY

Inventor： Ian S. Robinson ,  John D. Bloomer

IPC: G01J3/02 ,  G01J3/28 ,  G01J3/447 ,  G01J3/45 ,  G01J3/453 ,  G01J3/06

CPC classification number: G01J3/0224 ,  G01J3/021 ,  G01J3/027 ,  G01J3/06 ,  G01J3/2823 ,  G01J3/447 ,  G01J3/45 ,  G01J3/4535 ,  G01J2003/2826

Abstract: A multimode configurable imaging spectropolarimeter in which the polarimetry function can be activated and deactivated on demand.

Abstract translation: 多模式可配置成像分光偏振计，其中可以根据需要激活和去激活偏振功能。

公开(公告)号：US20160066775A1

公开(公告)日：2016-03-10

申请号：US14933666

申请日：2015-11-05

Applicant: Ian W. Hunter ,  Yi Chen

Inventor： Ian W. Hunter ,  Yi Chen

IPC: A61B1/06 ,  G01J3/45 ,  G01J3/28

CPC classification number: A61B1/0638 ,  G01J3/0286 ,  G01J3/0291 ,  G01J3/1256 ,  G01J3/2823 ,  G01J3/45 ,  G01J3/453 ,  G01J3/4535

Abstract: Imaging spectrometers can be used to generate hyperspectral images for medical diagnoses, contaminant detection, and food safety inspections, among other applications. An exemplary imaging spectrometer includes an integrated position sensing array that measures the relative positions of the interferometer components based on an interference pattern generated by illuminating the interferometer with a reference beam. Such an imaging spectrometer includes a processor that controls the interferometer component position by actuating a voice coil and several piezo-electric elements to align the components with respect to each other and to provide a desired optical path length mismatch between the interferometer arms. In some cases, the processor may use feedback and feed forward control, possibly based on the actuators' transfer functions, for more precise positioning. The processor may also implement adaptive and recursive spectral sampling to reduce the image acquisition period.

Abstract translation: 成像光谱仪可用于生成用于医疗诊断，污染物检测和食品安全检查的高光谱图像，以及其他应用。 示例性成像光谱仪包括集成位置检测阵列，其基于通过用参考光束照射干涉仪产生的干涉图案来测量干涉仪部件的相对位置。 这种成像光谱仪包括处理器，其通过致动音圈和若干压电元件来控制干涉仪组件位置，以使组件相对于彼此对准并且提供干涉仪臂之间期望的光程长度失配。 在某些情况下，处理器可以使用反馈和前馈控制，可能基于执行器的传递功能来进行更精确的定位。 处理器还可以实现自适应和递归频谱采样以减少图像采集周期。

公开(公告)号：US09274001B2

公开(公告)日：2016-03-01

申请号：US13574484

申请日：2011-01-24

Applicant: Adam Wax ,  Robert N. Graf ,  Francisco E. Robles

Inventor： Adam Wax ,  Robert N. Graf ,  Francisco E. Robles

IPC: G01J3/45 ,  G01B9/02 ,  G01N21/49 ,  G01J3/453

CPC classification number: G01J3/453 ,  G01B9/02044 ,  G01B9/02084 ,  G01B9/02087 ,  G01B9/02091 ,  G01J3/45 ,  G01J2003/4538 ,  G01N21/49

Abstract: Current apparatuses and methods for analysis of spectroscopic optical coherence tomography (SOCT) signals suffer from an inherent tradeoff between time (depth) and frequency (wavelength) resolution. In one non-limiting embodiment, multiple or dual window (DW) apparatuses and methods for reconstructing time-frequency distributions (TFDs) that applies two windows that independently determine the optical and temporal resolution is provided. For example, optical resolution may relate to scattering information about a sample, and temporal resolution may be related to absorption or depth related information. The effectiveness of the apparatuses and methods is demonstrated in simulations and in processing of measured OCT signals that contain fields which vary in time and frequency. The DW technique may yield TFDs that maintain high spectral and temporal resolution and are free from the artifacts and limitations commonly observed with other processing methods.

Abstract translation: 分光光学相干断层扫描（SOCT）信号的分析的现有装置和方法遭受时间（深度）和频率（波长）分辨率之间固有的折中。 在一个非限制性实施例中，提供了用于重建施加独立地确定光学和时间分辨率的两个窗口的时间频率分布（TFD）的多重或双窗口（DW）装置和方法。 例如，光学分辨率可以涉及关于样本的散射信息，并且时间分辨率可以与吸收或深度相关信息相关。 在模拟和处理包含在时间和频率上变化的场的测量的OCT信号中证明了装置和方法的有效性。 DW技术可以产生维持高光谱和时间分辨率的TFD，并且不存在通常用其它处理方法观察到的伪像和限制。

公开(公告)号：US09243957B2

公开(公告)日：2016-01-26

申请号：US14124781

申请日：2012-06-08

Applicant: Fabien Quere

Inventor： Fabien Quere

IPC: G01B9/02 ,  G01J3/45 ,  G01J11/00 ,  G01J9/02

CPC classification number: G01J3/45 ,  G01J9/02 ,  G01J11/00 ,  G01J2009/0238

Abstract: Method of characterizing a light beam having the steps of: a) disposing the input ends of N >3 optical fibers on the path of the light beam, in such a way that a respective portion of the beam is coupled and propagates in each optical fiber and is emitted from its output end so as to form a respective secondary beam; b) introducing an angular spectral dispersion into the secondary beams by means of at least one dispersive element; c) propagating the dispersed secondary beams in such a way that they overlap to form an interferogram; d) acquiring an image of the interferogram; and e) extracting from the image of the interferogram an item of information relating to the spatial variation of the phase of the light beam at a plurality of wavelengths. Device for the implementation of such a method.

Abstract translation: 表征光束的方法，具有以下步骤：a）将N> 3根光纤的输入端设置在光束的路径上，使得光束的相应部分耦合并在每条光纤中传播 并从其输出端发射以形成相应的次光束; b）借助于至少一个色散元件将角分光谱色散引入次光束; c）以这样的方式传播分散的次级束，使得它们重叠以形成干涉图; d）获取干涉图的图像; 以及e）从干涉图像的图像中提取与多个波长的光束的相位的空间变化有关的信息的项目。 设备实现这种方法。