公开(公告)号：US20070201022A1

公开(公告)日：2007-08-30

申请号：US11679112

申请日：2007-02-26

Applicant: Jason H. Neiss ,  Patrick J. Treado ,  Robert Schweitzer

Inventor： Jason H. Neiss ,  Patrick J. Treado ,  Robert Schweitzer

IPC: G01J3/00

CPC classification number: G01J3/2803 ,  G01J3/02 ,  G01J3/0218 ,  G01J3/0221 ,  G01J3/024 ,  G01J3/0291 ,  G01J3/0294 ,  G01J3/04 ,  G01J3/2823 ,  G01J3/44 ,  G01N21/65 ,  G01N2201/0833 ,  G01N2201/1293

Abstract: The disclosure relates generally to methods and apparatus for using a fiber array spectral translator-based (“FAST”) spectroscopic system for performing spectral unmixing of a mixture containing multiple polymorphs. In an embodiment, a first spectrum of a mixture containing polymorphs of a compound is obtained using a photon detector and a fiber array spectral translator having plural fibers. A set of second spectra is provided where each spectrum of the set of second spectra may be representative of a different polymorph of the compound. The first spectrum and the set of second spectra may be compared, and based on the comparison, the presence of one or more polymorphs in the mixture may be determined.

Abstract translation: 本公开总体上涉及使用用于执行含有多个多晶型物的混合物的光谱解混合的光纤阵列光谱转换器（“FAST”）光谱系统的方法和装置。 在一个实施方案中，使用具有多个纤维的光子检测器和光纤阵列光谱转换器获得含有化合物多晶型物的混合物的第一光谱。 提供了一组第二光谱，其中该组第二光谱的每个光谱可以代表该化合物的不同多晶型物。 可以比较第一光谱和第二光谱集，并且基于比较，可以确定混合物中一个或多个多晶型物的存在。

公开(公告)号：US20070188747A1

公开(公告)日：2007-08-16

申请号：US11674552

申请日：2007-02-13

Applicant: Matthew P. Nelson ,  Jason H. Neiss ,  Patrick J. Treado

Inventor： Matthew P. Nelson ,  Jason H. Neiss ,  Patrick J. Treado

IPC: G01D18/00 ,  G01J3/00 ,  G01C19/00

CPC classification number: G01J3/02 ,  G01J3/0218 ,  G01J3/0221 ,  G01J3/28 ,  G01J3/2803 ,  G01J3/2823 ,  G01N21/255 ,  G01N21/274 ,  G01N2201/0833

Abstract: The disclosure relates generally to methods and apparatus for spectral calibration of a spectroscopic system which includes a fiber array spectral translator. One embodiment relates to a method for obtaining a first image of a known substance using a photon detector and a fiber array spectral translator having plural fibers, wherein the first image comprises at least one pixel; providing a second image of the substance wherein the second image comprises at least one pixel; comparing the first image with the second image; and adjusting at least one pixel of the first image based on the comparison of images to thereby obtain an adjusted image.

Abstract translation: 本公开一般涉及包括光纤阵列光谱转换器的光谱系统的光谱校准的方法和装置。 一个实施例涉及一种使用光子检测器和具有多个光纤的光纤阵列光谱转换器获得已知物质的第一图像的方法，其中第一图像包括至少一个像素; 提供所述物质的第二图像，其中所述第二图像包括至少一个像素; 将第一图像与第二图像进行比较; 以及基于图像的比较来调整第一图像的至少一个像素，从而获得调整后的图像。

公开(公告)号：US07242468B1

公开(公告)日：2007-07-10

申请号：US10962662

申请日：2004-10-13

Applicant: Jingyun Zhang

Inventor： Jingyun Zhang

IPC: G01J3/44 ,  G02B6/06

CPC classification number: G01J3/2823 ,  G01J3/02 ,  G01J3/0218 ,  G01J3/0221 ,  G01J3/44 ,  G02B6/06

Abstract: A novel approach for chemical imaging is disclosed. In one embodiment, the disclosure relates to a system for producing a spatially accurate wavelength-resolved image of a sample from photons scattered from the sample, comprising an optical lens; a first optical fiber bundle of M fibers; a second optical fiber bundle of N fibers; an optical fiber switch; and a charge coupled device, wherein the image comprises plural sub-images, and wherein each sub-image is formed from photons scattered from a predetermined two spatial dimension portion of the sample, and wherein the scattered photons forming each sub-image have a predetermined wavelength different from a predetermined wavelength of scattered photons forming the other sub-images, and wherein the scattered photons for each sub-image are collected substantially simultaneously.

Abstract translation: 公开了一种新颖的化学成像方法。 在一个实施例中，本公开涉及一种用于从包含光学透镜的样品散射的光子产生样品的空间上准确的波长分辨图像的系统; M纤维的第一光纤束; N纤维的第二光纤束; 光纤交换机; 以及电荷耦合器件，其中所述图像包括多个子图像，并且其中每个子图像由从样本的预定的两个空间维度部分散射的光子形成，并且其中形成每个子图像的散射光子具有预定的 波长不同于形成其他子图像的散射光子的预定波长，并且其中基本上同时收集每个子图像的散射光子。

公开(公告)号：US5359409A

公开(公告)日：1994-10-25

申请号：US98559

申请日：1993-07-28

Applicant: Kenneth R. Wildnauer ,  James R. Stimple ,  John D. Knight ,  Joseph N. West ,  Barry G. Broome

Inventor： Kenneth R. Wildnauer ,  James R. Stimple ,  John D. Knight ,  Joseph N. West ,  Barry G. Broome

IPC: G01J3/02 ,  G01J3/06 ,  G01J3/18 ,  G01J3/28

CPC classification number: G01J3/18 ,  G01J2003/062 ,  G01J2003/069 ,  G01J2003/1819 ,  G01J2003/1828 ,  G01J3/0221 ,  G01J3/2889

Abstract: A double-pass scanning monochromator for use in an optical spectrum analyzer includes an input optical fiber for emitting an input light beam, a diffraction grating for diffracting the input light beam to produce a spatially dispersed light beam, a slit for passing a selected portion of the dispersed light beam, a motor for rotating the diffraction grating, a shaft angle encoder for sensing grating position, and an output optical fiber. The light that passes through the slit is directed to the diffraction grating and is recombined by the diffraction grating to produce an output light beam. The light beam to be analyzed is incident on the diffraction grating during first and second passes. A polarization rotation device rotates the polarization components of the light beam by 90.degree. between the first and second passes so that the output of the monochromator is independent of the polarization of the input light beam. The output optical fiber is translated by a micropositioning assembly in a plane perpendicular to the output light beam during rotation of the diffraction grating to automatically track the output light beam and to provide optical chopping.

Abstract translation: 用于光谱分析仪的双通扫描单色仪包括用于发射输入光束的输入光纤，用于衍射输入光束以产生空间分散的光束的衍射光栅，用于使所选择的部分通过的狭缝 分散的光束，用于旋转衍射光栅的电动机，用于感测光栅位置的轴角编码器和输出光纤。 通过狭缝的光被引导到衍射光栅，并且被衍射光栅重新组合以产生输出光束。 要分析的光束在第一次和第二次通过期间入射到衍射光栅上。 偏振旋转装置在第一和第二遍之间使光束的偏振分量旋转90°，使得单色仪的输出与输入光束的偏振无关。 在衍射光栅旋转期间，输出光纤由垂直于输出光束的平面中的微定位组件平移，以自动跟踪输出光束并提供光学切割。

公开(公告)号：US5233405A

公开(公告)日：1993-08-03

申请号：US788444

申请日：1991-11-06

Applicant: Kenneth R. Wildnauer ,  James R. Stimple ,  John D. Knight ,  Joseph N. West ,  Barry G. Broome

Inventor： Kenneth R. Wildnauer ,  James R. Stimple ,  John D. Knight ,  Joseph N. West ,  Barry G. Broome

IPC: G01J3/02 ,  G01J3/06 ,  G01J3/18 ,  G01J3/28

CPC classification number: G01J3/18 ,  G01J2003/062 ,  G01J2003/069 ,  G01J2003/1819 ,  G01J2003/1828 ,  G01J3/0221 ,  G01J3/2889

Abstract: A double pass scanning monochromator for use in an optical spectrum analyzer includes an input optical fiber for emitting an input light beam, a diffraction grating for diffracting the input light beam to produce a spatially dispersed light beam, a slit for passing a selected portion of the dispersed light beam, a motor for rotating the diffraction grating, a shaft angle encoder for sensing grating position, and an output optical fiber. The light that passes through the slit is directed to the diffraction grating and is recombined by the diffraction grating to produce an output light beam. The light beam to be analyzed is incident on the diffraction grating during first and second passes. A polarization rotation device rotates the polarization components of the light beam by 90.degree. between the first and second passes so that the output of the monochromator is independent of the polarization of the input light beam. The output optical fiber is translated by a micropositioning assembly in a plane perpendicular to the output light beam during rotation of the diffraction grating to automatically track the output light beam and to provide optical chopping.

公开(公告)号：US5026160A

公开(公告)日：1991-06-25

申请号：US417623

申请日：1989-10-04

Applicant: Paul B. Dorain ,  Judith B. Snow

Inventor： Paul B. Dorain ,  Judith B. Snow

IPC: G01J3/02 ,  G01J3/18 ,  G01J3/24 ,  G01J3/28

CPC classification number: G01J3/02 ,  G01J3/0218 ,  G01J3/0221 ,  G01J3/0259 ,  G01J3/0294 ,  G01J3/18 ,  G01J3/0256 ,  G01J3/1804 ,  G01J3/24 ,  G01J3/2803

Abstract: A solid monolithic spectrograph utilizes the Czerny-Turner geometric confration. It has a base constructed of BK7 optical glass to which all components are affixed with optical epoxy. The compact spectrograph operates in the visible spectrum in second order thereby permitting it to be smaller by a factor of two than if it operated in first order. The spectrograph is programmable and is capable of simultaneous multi-channel measurements of wavelengths and bandwidths of sources in the visible and near infrared spectral regions.

Abstract translation: 固体单片光谱仪采用Czerny-Turner几何配置。 它具有由BK7光学玻璃构成的基座，所有部件都用光学环氧树脂固定。 紧凑型光谱仪在可见光谱中以二次方式操作，从而允许其比以一级操作的方式更小二倍。 光谱仪是可编程的，并且能够同时对可见光和近红外光谱区域中的光源的波长和带宽进行多通道测量。

公开(公告)号：US12111209B2

公开(公告)日：2024-10-08

申请号：US17296282

申请日：2019-11-22

Applicant: Leica Microsystems NC, Inc.

Inventor： Robert H. Hart ,  Peter Strobel

IPC: G01J3/02 ,  G01B9/02 ,  G01B9/02091 ,  G01J3/28 ,  G01J3/45 ,  G02B9/10 ,  G02B27/30

CPC classification number: G01J3/0291 ,  G01B9/02044 ,  G01B9/02091 ,  G01J3/0208 ,  G01J3/0221 ,  G01J3/0256 ,  G01J3/0272 ,  G01J3/0286 ,  G01J3/2803 ,  G01J3/45 ,  G02B9/10 ,  G02B27/30

Abstract: Spectrometer systems are provided including a detector array; an imaging lens assembly coupled to the detector array, the imaging lens assembly including a first element of positive optical power followed by a second element of negative optical power and a positive optical power element split into two opposing identical singlets; a dispersive element coupled to the imaging lens assembly; and a fixed focus collimator assembly coupled to the dispersive element. Related imaging lens assemblies and collimator assemblies are also provided.

公开(公告)号：US11976971B2

公开(公告)日：2024-05-07

申请号：US17272667

申请日：2019-09-04

Applicant: Michigan Aerospace Corporation

Inventor： Will Johnson

IPC: G01J3/02 ,  F21V8/00 ,  G01J3/18 ,  G01J3/28 ,  G01S17/95

CPC classification number: G01J3/0221 ,  G01J3/18 ,  G01J3/2803 ,  G01S17/95 ,  G02B6/0008 ,  G01J2003/2813

Abstract: Spectrographic measurements are often limited by the amount of light that is available. Photons that are not collected or measured reduce the signal to noise and therefore reduce measurement precision. This invention collects the zero order light and sends it through the spectrometer again. In an atmospheric LIDAR, the zero order recycling is estimated to increase the rotational Raman signal by an additional 20%. A grating based spectrometer where the zero order light is collected by a lens or mirror and focused into a fiber optic that sends the light to the input slit where it is directed into the spectrometer again. There can be a plurality of recycle fibers. The detector can be either a single linear array or a two dimensional array such as a CCD or CMOS camera.

公开(公告)号：US10078013B2

公开(公告)日：2018-09-18

申请号：US15723103

申请日：2017-10-02

Applicant: UNIVERSITY OF MARYLAND BALTIMORE COUNTY

Inventor： Bradley Arnold ,  Christopher Cooper ,  John Cataldi

IPC: G01J3/28 ,  G01J3/44 ,  G01J3/18 ,  G02B6/32 ,  G01J3/06 ,  G02B5/18

CPC classification number: G01J3/44 ,  G01J3/0221 ,  G01J3/06 ,  G01J3/18 ,  G01J3/2803 ,  G01J3/36 ,  G02B5/1814 ,  G02B5/1861 ,  G02B6/32

Abstract: The invention provides methods and apparatus comprising a multi-wavelength laser source that uses a single unfocused pulse of a low intensity but high power laser over a large sample area to collect Raman scattered collimated light, which is then Rayleigh filtered and focused using a singlet lens into a stacked fiber bundle connected to a customized spectrograph, which separates the individual spectra from the scattered wavelengths using a hybrid diffraction grating for collection onto spectra-specific sections of an array photodetector to measure spectral intensity and thereby identify one or more compounds in the sample.

公开(公告)号：US20180157020A1

公开(公告)日：2018-06-07

申请号：US15578528

申请日：2016-05-24

Applicant: NATIONAL UNIVERSITY CORPORATION ASAHIKAWA MEDICAL UNIVERSITY

Inventor： Kyosuke KAMADA ,  Yukie TAMURA ,  Fumiya TAKEUCHI

IPC: G02B21/00 ,  G01N21/64 ,  G02B27/10

CPC classification number: G02B21/0012 ,  G01J3/0221 ,  G01J3/28 ,  G01J2003/003 ,  G01N21/64 ,  G01N21/6458 ,  G02B21/0028 ,  G02B21/0076 ,  G02B27/10

Abstract: Problem: To provide an observation auxiliary device that can appropriately and readily perform observation using an exciting light as a light source.Resolution Means: Provided are an imaging unit 104 that uses a light emitted from a second beam splitter 202 of a microscope 2 that can use an exciting light and an observation light, which is a light including a wavelength other than that of the exciting light, as a light source by switching there between and is provided with the second beam splitter 202 to image images of the same observation region of the microscope 2 in situations where the exciting light and the observation light are used as the light source and an output unit 106 that overlaps, synthesizes, and outputs the images imaged by the imaging unit 104 respectively using the exciting light and the observation light as the light source.