公开(公告)号：US07602488B2

公开(公告)日：2009-10-13

申请号：US11452129

申请日：2006-06-12

Applicant: Ricardo Claps ,  Bradley A. Smith

Inventor： Ricardo Claps ,  Bradley A. Smith

IPC: G01J3/44

CPC classification number: G01J3/44 ,  G01J3/0218 ,  G01J3/0227 ,  G01J3/1895 ,  G01J3/26 ,  G01J3/2889 ,  G01J3/32 ,  G01J2003/123 ,  G01N21/65

Abstract: A new architecture for implementing a time-resolved Raman spectrometer is 2-3 orders of magnitude faster than current systems. The system additionally is compact, environmentally rugged, low cost and can detect multiple components of a sample simultaneously. In one embodiment, the invention employs a rotating optical switch to time multiplex an input signal through multiple bandpass filters and into a single optical detector which is electrically activated only when the filtered input light pulse is about to impact it.The combination of time-multiplexing the input signal through multiple optical filters and time-sequencing the optical detector enables the device to detect and analyze 2-3 orders of magnitude faster than current designs, processing spectra within milliseconds instead of seconds. The system can process multiple material samples (25+) simultaneously, instead of sequentially, and its mechanical ruggedness and simplicity enables using the system in harsh physical environments when traditional spectrometers can not be used reliably.

Abstract translation: 实现时间分辨拉曼光谱仪的新架构比现有系统快2-3个数量级。 该系统还具有结构紧凑，环境坚固，成本低，可同时检测样品的多个成分。 在一个实施例中，本发明采用旋转光学开关来将输入信号经过多个带通滤波器进行时间复用，并进入单个光学检测器，只有当滤波后的输入光脉冲即将影响时才能电激活。 通过多个光学滤波器对输入信号进行时间复用和对光学检测器进行时间排序的组合使得该器件能够比目前的设计更快地检测和分析2-3个数量级，在几毫秒而不是几秒内处理光谱。 该系统可以同时处理多个材料样品（25+），而不是依次加工，并且其机械坚固性和简单性使得在传统光谱仪不能可靠地使用恶劣的物理环境中使用该系统。

公开(公告)号：US20070285658A1

公开(公告)日：2007-12-13

申请号：US11452129

申请日：2006-06-12

Applicant: Ricardo Claps ,  Bradley A. Smith

Inventor： Ricardo Claps ,  Bradley A. Smith

IPC: G01J3/44 ,  G01N21/65

CPC classification number: G01J3/44 ,  G01J3/0218 ,  G01J3/0227 ,  G01J3/1895 ,  G01J3/26 ,  G01J3/2889 ,  G01J3/32 ,  G01J2003/123 ,  G01N21/65

Abstract: A new architecture for implementing a time-resolved Raman spectrometer is 2-3 orders of magnitude faster than current systems. The system additionally is compact, environmentally rugged, low cost and can detect multiple components of a sample simultaneously. In one embodiment, the invention employs a rotating optical switch to time multiplex an input signal through multiple bandpass filters and into a single optical detector which is electrically activated only when the filtered input light pulse is about to impact it.The combination of time-multiplexing the input signal through multiple optical filters and time-sequencing the optical detector enables the device to detect and analyze 2-3 orders of magnitude faster than current designs, processing spectra within milliseconds instead of seconds. The system can process multiple material samples (25+) simultaneously, instead of sequentially, and its mechanical ruggedness and simplicity enables using the system in harsh physical environments when traditional spectrometers can not be used reliably.

Abstract translation: 实现时间分辨拉曼光谱仪的新架构比现有系统快2-3个数量级。 该系统还具有结构紧凑，环境坚固，成本低，可同时检测样品的多个成分。 在一个实施例中，本发明采用旋转光学开关来将输入信号经过多个带通滤波器进行时间复用，并进入单个光学检测器，只有当滤波后的输入光脉冲即将影响时才能电激活。 通过多个光学滤波器对输入信号进行时间复用和对光学检测器进行时间排序的组合使得该器件能够比目前的设计更快地检测和分析2-3个数量级，在几毫秒而不是几秒内处理光谱。 该系统可以同时处理多个材料样品（25+），而不是依次加工，并且其机械坚固性和简单性使得在传统光谱仪不能可靠地使用恶劣的物理环境中使用该系统。

公开(公告)号：US20040149915A1

公开(公告)日：2004-08-05

申请号：US10476400

申请日：2003-12-12

Inventor： Duarte Paulo da silva Goncalves

IPC: G01N021/25

CPC classification number: G01J3/12 ,  G01J3/0235 ,  G01J3/28 ,  G01J3/462 ,  G01J3/51 ,  G01J3/524 ,  G01J2003/1217 ,  G01J2003/123

Abstract: The invention provides a spectrometer (10) which includes a filter arrangement (16,18), in addition to any option filters (20) for limiting an operational wavelength range of the spectrometer, the filter arrangement (16,18) comprising a plurality of broadband optical filters or broadband optical filter areas each of known transmission and being located or selectively locatable in a path of collected incident spectral radiation (44). The spectrometer further includes at least one detector (24) arranged to measure the spectral radiation passing through at least one of the broadband filters located in the path of collected incident spectral radiation, and signal-processing means (34) for recovering the spectrum of the collected spectral radiation from measurements by the detector (24).

Abstract translation: 本发明提供了一种光谱仪（10），其包括滤光器装置（16,18），除了用于限制光谱仪的工作波长范围的任何选项滤光器（20）之外，滤光器装置（16,18）包括多个 宽带光学滤波器或宽带光学滤波器区域，每个已知传输并且位于或选择性地定位在所收集的入射光谱辐射（44）的路径中。 光谱仪还包括至少一个检测器（24），其被布置成测量通过位于收集的入射光谱辐射的路径中的至少一个宽带滤光器的光谱辐射;以及信号处理装置（34），用于恢复 通过检测器（24）的测量收集光谱辐射。

公开(公告)号：US06661513B1

公开(公告)日：2003-12-09

申请号：US09991038

申请日：2001-11-21

Applicant: Edward M. Granger

Inventor： Edward M. Granger

IPC: G01J328

CPC classification number: G02B6/29311 ,  G01J3/0205 ,  G01J3/0208 ,  G01J3/0229 ,  G01J3/0256 ,  G01J3/0262 ,  G01J3/12 ,  G01J3/28 ,  G01J2003/123 ,  G02B6/29373

Abstract: A diffraction grating and a prism with the appropriate characteristics are employed to provide a combined dispersive characteristic that is substantially linear over the visible spectrum. Radiation from the grating and prism is collimated by a lens towards a detector array. The grating or a telecentric stop between the grating and prism is placed at a focal point of the lens in a telecentric arrangement so that equal magnification is achieved at the detector array. If the detector array is replaced by a plurality of optical channels, a multiplexer/demultiplexer is obtained.

Abstract translation: 使用衍射光栅和具有适当特性的棱镜来提供在可见光谱上基本上线性的组合色散特性。 来自光栅和棱镜的辐射由透镜朝向检测器阵列准直。 光栅或光栅和棱镜之间的远心光阑以远心布置放置在透镜的焦点处，使得在检测器阵列处实现相等的放大倍率。 如果检测器阵列被多个光通道替代，则获得多路复用器/解复用器。

公开(公告)号：US20030102433A1

公开(公告)日：2003-06-05

申请号：US10342480

申请日：2003-01-15

Inventor： Emil W. Ciurczak ,  Kevin C. Bynum

IPC: G02B005/30 ,  G02B005/32 ,  B29C039/22 ,  B29C039/02

CPC classification number: G01N21/35 ,  G01J1/0455 ,  G01J1/4228 ,  G01J3/0243 ,  G01J3/10 ,  G01J3/12 ,  G01J3/1256 ,  G01J3/2803 ,  G01J2003/123 ,  G01J2003/1243 ,  G01J2003/1828 ,  G01J2003/2866 ,  G01N21/359 ,  G01N21/59

Abstract: A hemispherical detector comprising a plurality of photodetectors arranged in a substantially contiguous array, the array being substantially in the shape of a half-sphere, the half-sphere defining a closed end and an open end, the open end defining a substantially circular face. Also provided is a method for constructing a hemispherical detector comprising the steps of making a press mold of the desired shape of the hemispherical detector, pouring a material into the press mold to form a cast, finishing the cast to remove any defects, coating the cast with a coating material, and attaching a plurality of photodetectors to the cast.

公开(公告)号：US20020171834A1

公开(公告)日：2002-11-21

申请号：US09832631

申请日：2001-04-11

Inventor： Robert K. Rowe ,  Russell E. Abbink ,  Stephan P. Corcoran

IPC: G01J003/51

CPC classification number: G01J3/10 ,  G01J3/0218 ,  G01J3/12 ,  G01J3/32 ,  G01J2003/123 ,  G01J2003/1234 ,  G01N21/255

Abstract: Spectroscopic system and spectrometers including an optical bandpass filter unit consisting of a plurality of bandpass regions and a spatial encoding unit for encoding discrete frequencies of light passing through the optical filter. The incorporation of the encoding unit allows the spectrometer system to use a detector consisting of one or a small number of elements, rather than using a more expensive detector array as is commonly used with filter-based spectrometers. The system can also include an integrating chamber that collects the light that is not transmitted through the bandpass filter unit and is substantially reflected, and redirects this light to strike the filter unit again, resulting in a significant increase in the optical power passing through the filter. The integrating chamber maximizes the return of the reflected light to the filter assembly and minimizes optical losses. The integrating chamber may be an orthogonal design to preserve the optical geometric characteristics of the light entering the chamber, even after multiple reflections from the optical filter.

Abstract translation: 光谱系统和光谱仪包括由多个带通区域组成的光学带通滤波器单元和用于编码通过滤光器的光的离散频率的空间编码单元。 编码单元的结合允许光谱仪系统使用由一个或少量元件组成的检测器，而不是使用与基于滤波器的光谱仪通常使用的更昂贵的检测器阵列。 该系统还可以包括积分室，其收集未透射通过带通滤光器单元的光并且基本上被反射，并且重定向该光以再次撞击滤光器单元，导致通过滤光器的光功率的显着增加 。 积分室使反射光的返回最大化到滤光器组件，并使光损耗最小化。 积分室可以是正交设计，以便即使在来自滤光器的多次反射之后也能保持进入室的光的几何特性。

公开(公告)号：US5689333A

公开(公告)日：1997-11-18

申请号：US438270

申请日：1995-05-10

Applicant: David N. Batchelder ,  Chunwei Cheng ,  Brian J. E. Smith ,  Raymond J. Chaney

Inventor： David N. Batchelder ,  Chunwei Cheng ,  Brian J. E. Smith ,  Raymond J. Chaney

IPC: G01J3/12 ,  G01J3/18 ,  G01J3/26 ,  G01J3/28 ,  G01J3/44 ,  G02B21/00

CPC classification number: G01J3/12 ,  G01J3/2803 ,  G01J3/44 ,  G02B21/004 ,  G02B21/008 ,  B82Y35/00 ,  G01J2003/1226 ,  G01J2003/123 ,  G01J3/18 ,  G01J3/26

Abstract: A sample placed under a microscope is illuminated by light from a laser beam. Raman scattered light is passed back via a dichroic filter to various optical components which analyse the Raman spectrum, and thence to a CCD detector. The optical components for analysing the Raman spectrum include tunable dielectric filters in a filter wheel; a Fabry-Perot etalon; and a diffraction grating. These various components may be swapped into the optical path as desired, for example using movable mirrors, enabling the apparatus to be used very flexibly for a variety of different analysis procedures. Various novel analysis methods are also described.

Abstract translation: 置于显微镜下的样品由来自激光束的光照射。 拉曼散射光通过二向色滤光器返回到分析拉曼光谱的各种光学部件，然后到CCD检测器。 用于分析拉曼光谱的光学部件包括滤光轮中的可调介质滤光器; 法布里 - 珀罗标准具; 和衍射光栅。 这些各种组件可以根据需要被交换到光路中，例如使用可移动反射镜，使得能够非常灵活地使用该设备用于各种不同的分析过程。 还描述了各种新颖的分析方法。

公开(公告)号：US5123744A

公开(公告)日：1992-06-23

申请号：US617726

申请日：1990-11-26

Applicant: Jerome M. Welner

Inventor： Jerome M. Welner

IPC: G01J3/00 ,  G01J3/12 ,  G01J3/32 ,  G01J3/36 ,  G01J9/00

CPC classification number: G01J3/36 ,  G01J9/00 ,  G01J2003/123 ,  G01J2003/1239

Abstract: Each of three or more telescopic filters in pairs of filters and detectors therefor has very narrow passband lines centered about laser wavelengths and nearby guardbands. As defined, a passband is any wavelength region of the spectrum permitted by a system to pass through to a detector, and a guardband is a spectral region near but not including the laser lines of interest. Each laser wavelength is simultaneously detected in exactly two detectors. Associated with each wavelength is a guardband near that wavelength, which is used to detect and reject broader band radiation. False alarms are made rare by proper parameter selection.

Abstract translation: 成对的三个或更多个望远镜滤波器和检测器中的每一个具有以激光波长和附近保护带为中心的非常窄的通带线。 如所定义，通带是系统允许通过到检测器的频谱的任何波长区域，并且保护带是近似但不包括感兴趣的激光线的光谱区域。 在两个检测器中同时检测每个激光波长。 与每个波长相关联的是靠近该波长的保护带，其用于检测和拒绝更宽带辐射。 通过适当的参数选择使虚假警报变得罕见。

公开(公告)号：US4974963A

公开(公告)日：1990-12-04

申请号：US279598

申请日：1988-10-31

Applicant: Clausin Pierre ,  Bleuse Patrick ,  Guene Gilles

Inventor： Clausin Pierre ,  Bleuse Patrick ,  Guene Gilles

IPC: C01B3/00 ,  F23Q3/00 ,  G01J3/12 ,  G01N20060101 ,  G01N21/72 ,  G05D7/06

CPC classification number: G05D7/06 ,  C01B3/0005 ,  F23Q3/008 ,  G01N21/72 ,  G01J2003/123 ,  Y02E60/324

Abstract: Instrument comprising a burner (22) provided with a window (221), on the axis of which is disposed a flame spectrophotometric device consisting of a focusing lens (222, 231), a chopper (223) introducing a number of optical filters (224) at the rate of one per characteristic line in the spectrum of the element under analysis, an optoelectronic cell (232) disposed within the focusing zone of said lens, a demodulation assembly for demodulating the electric signal emitted by said cell, and devices for amplifying and displaying the electric signal emitted by said assembly. Special provisions render the instrument portable and autonomous without detracting from its high precision.

Abstract translation: PCT No.PCT / FR88 / 00105 Sec。 371日期1988年10月31日第 102（e）日期1988年10月31日PCT提交1988年2月25日PCT公布。 出版物WO88 / 06727 日期：1988年9月7日。包括设置有窗口（221）的燃烧器（22）的仪器，其轴线设置有由聚焦透镜（222,231）构成的火焰分光光度仪器，引入 多个光学滤波器（224），在被分析元件的光谱中以每个特征线一个的速率，设置在所述透镜的聚焦区域内的光电池（232），解调组件，用于解调由 所述单元以及用于放大和显示由所述组件发射的电信号的装置。 特殊规定使仪器便携和自主，而不会降低仪器的高精度。

公开(公告)号：US4859063A

公开(公告)日：1989-08-22

申请号：US204931

申请日：1988-05-31

Applicant: Fredric S. Fay ,  Kevin E. Fogarty ,  Cyril Rodgers

Inventor： Fredric S. Fay ,  Kevin E. Fogarty ,  Cyril Rodgers

IPC: G01J1/44 ,  G01J3/12 ,  G01N21/64 ,  G02B21/00

CPC classification number: G01N21/6458 ,  G02B21/0096 ,  G01J2001/442 ,  G01J2001/4453 ,  G01J2003/123 ,  G01N2021/6421 ,  G01N21/6428 ,  G01N2201/126

Abstract: A microscope is modified to allow for precise imaging of samples using different filters at different focal planes under computer control. A filter accessory includes a filter disc having bandpass filters. The filter disc may be rotated to move a selected filter into the optical path between a light source and the microscope sample. Adjustment of the image plane of the microscope is controlled by the computer using feedback from a lens position sensor.

Abstract translation: 显微镜被修改为允许在计算机控制下在不同焦平面处使用不同滤光片的样品的精确成像。 过滤器附件包括具有带通滤波器的滤光片。 可以旋转滤光盘以将选定的滤光片移动到光源和显微镜样品之间的光路中。 显微镜的图像平面的调整由计算机使用来自透镜位置传感器的反馈来控制。