公开(公告)号：US20050134855A1

公开(公告)日：2005-06-23

申请号：US10976799

申请日：2004-11-01

Applicant: Marco Pizzi

Inventor： Marco Pizzi

IPC: G01J3/04 ,  G01J3/32 ,  G01J3/51 ,  G02B26/02 ,  G01N21/25

CPC classification number: G01J3/51 ,  G01J3/04 ,  G01J3/32

Abstract: A spectrophotometer comprises selection means for selecting one or more of the components of a light beam corresponding to different wavelengths, formed by optical micro-filters.

Abstract translation: 分光光度计包括用于选择由光学微滤器形成的对应于不同波长的光束的一个或多个分量的选择装置。

公开(公告)号：US20050024640A1

公开(公告)日：2005-02-03

申请号：US10832684

申请日：2004-04-26

Applicant: William Fateley ,  Ronald Coifman ,  Frank Geshwind ,  Richard DeVerse

Inventor： William Fateley ,  Ronald Coifman ,  Frank Geshwind ,  Richard DeVerse

IPC: G01J3/02 ,  G01J3/06 ,  G01J3/10 ,  G01J3/18 ,  G01J3/28 ,  G01J3/32 ,  G01J3/457 ,  G01N21/39 ,  G02B26/08 ,  G02B27/10 ,  G01J3/42

CPC classification number: G02B27/1013 ,  G01J3/02 ,  G01J3/021 ,  G01J3/0218 ,  G01J3/0229 ,  G01J3/0232 ,  G01J3/027 ,  G01J3/06 ,  G01J3/10 ,  G01J3/18 ,  G01J3/2823 ,  G01J3/2846 ,  G01J3/2889 ,  G01J3/32 ,  G01J3/42 ,  G01J3/433 ,  G01J3/457 ,  G01J2003/2866 ,  G01N21/39 ,  G01N2021/393 ,  G01N2021/6463 ,  G02B26/0833 ,  G02B26/0841 ,  G02B27/1086 ,  G02B27/126

Abstract: Encoded spatio-spectral information processing is performed using a system having a radiation source, wavelength dispersion device and two-dimensional switching array, such as digital micro-mirror array (DMA). In one aspect, spectral components from a sample are dispersed in space and modulated separately by the switching array, each element of which may operate according to a predetermined encoding pattern. The encoded spectral components can then be detected and analyzed. In a different aspect, the switching array can be used to provide a controllable radiation source for illuminating a sample with radiation patterns that have predetermined characteristics and separately encoded components. Various applications are disclosed.

公开(公告)号：US6097487A

公开(公告)日：2000-08-01

申请号：US341708

申请日：1999-07-29

Applicant: Jon Thomas Kringlebotn ,  Dag Thingbo ,  Hilde Nakstad

Inventor： Jon Thomas Kringlebotn ,  Dag Thingbo ,  Hilde Nakstad

IPC: G01J3/32 ,  G01J3/28 ,  G01J9/02 ,  G01B9/02

CPC classification number: G01J9/0246

Abstract: A device for accurate and repeatable measurements of optical wavelengths, including an interrogation broadband light source (1) and a tuneable optical filter (2). A first part of the light is, in either order, transmitted through the filter (2) and reflected from, or transmitted through, at least one fibre Bragg grating (5) with known Bragg wavelength, providing an absolute wavelength reference, and directed to a first detector (7). A second part of the light is, in either order, transmitted through the filter and transmitted through, or reflected from a Fabry-Perot filter (8) with fixed and known free spectral range, creating a comb spectrum sampling the interrogation source spectrum to provide an accurate frequency/wavelength scale.

Abstract translation: PCT No.PCT / NO98 / 00031 Sec。 371日期1999年7月29日第 102（e）日期1999年7月29日PCT提交1998年1月29日PCT公布。 公开号WO98 / 36252 日期1998年8月20日一种用于光学波长的精确和可重复测量的装置，包括询问宽带光源（1）和可调谐光学滤波器（2）。 光的第一部分以任何顺序通过滤光器（2）透射并通过具有已知布拉格波长的至少一个光纤布拉格光栅（5）反射或透射，提供绝对波长参考，并且指向 第一检测器（7）。 光的第二部分以任何顺序通过滤波器传输并通过固定和已知的自由光谱范围传输或从法布里 - 珀罗滤光片（8）反射，从而产生梳状光谱采样询问源光谱，以提供 准确的频率/波长标度。

公开(公告)号：US5991032A

公开(公告)日：1999-11-23

申请号：US165884

申请日：1998-10-02

Applicant: George H. Atkinson ,  Jeffrey S. Pilgrim

Inventor： George H. Atkinson ,  Jeffrey S. Pilgrim

IPC: G01J3/10 ,  G01J3/14 ,  G01J3/18 ,  G01J3/26 ,  G01J3/32 ,  G01J3/42 ,  G01J3/45 ,  G01N21/01 ,  G01N21/35 ,  G01N21/39 ,  H01S3/00 ,  G01N21/31

CPC classification number: G01N21/39

Abstract: A method and apparatus for detecting the presence of a specific concentration of gaseous species within a calibrated range in a gas sample are disclosed. The ILS gas detection system of the present invention simply comprises an ILS laser and an optical detector. However, the potential or operational wavelength bandwidth of the ILS laser is preferably entirely included within one of the absorption bands or regions assigned to the intracavity gaseous species being monitored. Thus, within the calibrated range, the presence of the gaseous species changes the output laser intensity of the ILS laser. Consequently, only the intensity of the output of the ILS laser need be monitored in order to quantitatively determine the concentration of the absorbing gaseous species when using the ILS method of the present invention.

Abstract translation: 公开了一种在气体样品的校准范围内检测特定浓度的气态物质的存在的方法和装置。 本发明的ILS气体检测系统简单地包括ILS激光器和光学检测器。 然而，ILS激光器的潜在或工作波长带宽优选完全包括在被分配给被监测的腔内气体物质的吸收带或区域之一内。 因此，在校准范围内，气态物质的存在会改变ILS激光器的输出激光强度。 因此，为了在使用本发明的ILS方法时定量地确定吸收气态物质的浓度，仅需要监视ILS激光器的输出强度。

公开(公告)号：US5986758A

公开(公告)日：1999-11-16

申请号：US136116

申请日：1998-08-18

Applicant: Denise M. Lyons ,  Kevin J. Whitcomb

Inventor： Denise M. Lyons ,  Kevin J. Whitcomb

IPC: G01J3/02 ,  G01J3/18 ,  G01J3/28 ,  G01J3/32

CPC classification number: G01J3/02 ,  G01J3/0208 ,  G01J3/0237 ,  G01J3/18 ,  G01J3/2803 ,  G01J3/32

Abstract: An imaging spectrometer provides a three-dimensional (two (2) spatial and one (1) spectral) image cube of a target. In this apparatus, a diffractive optical element (DOE) performs the imaging and provides the dispersion necessary to separate a multi-spectral target into separate spectral images that are detected by a photodetector array. A lens (or set of lenses) relays the image formed by the DOE to the photodetector array. This lens allows the DOE and photodetector array to be mounted with a fixed separation and the spectral images to have a constant magnification. The lens is stepped or scanned along the optical axis, and each position of the lens corresponds to a particular wavelength being imaged onto the photodetector array. At each position of the relay lens the photodetector array records a spectral image by a process called diffractive spectral sectioning.

Abstract translation: 成像光谱仪提供目标的三维（两（2）空间和一（1）光谱）图像立方体。 在该装置中，衍射光学元件（DOE）执行成像并提供将多光谱目标分离成由光电检测器阵列检测的分离的光谱图像所必需的色散。 透镜（或透镜组）将由DOE形成的图像中继到光电检测器阵列。 该透镜允许DOE和光电检测器阵列以固定的分离方式安装，并且光谱图像具有恒定的放大倍率。 透镜沿着光轴被阶梯或扫描，并且透镜的每个位置对应于被成像到光电检测器阵列上的特定波长。 在中继透镜的每个位置处，光电检测器阵列通过称为衍射光谱分割的过程记录光谱图像。

公开(公告)号：US5483335A

公开(公告)日：1996-01-09

申请号：US223225

申请日：1994-04-05

Applicant: Reginald Tobias

Inventor： Reginald Tobias

IPC: G01J3/20 ,  G01J3/32 ,  G01J3/02 ,  G01J3/42

CPC classification number: G01J3/32 ,  G01J2003/326 ,  G01J3/20

Abstract: Analysis of energy emanating from a source having a focal plane by converting the energy from the source into modulated spectral components simultaneously distributed according to frequency along a flat field, using, for example, a modulator, and then detecting and demodulating the spectral components, for example by a fast Fourier transform or synchronous demodulator with a ruled grating interposable between the source and the detector and a linear variable bandpass filter interposable between the source and the detector.

Abstract translation: 通过使用例如调制器将源自源的能量转换成根据平面频率同时分布的调制频谱分量，然后检测和解调频谱分量，分析从具有焦平面的源发出的能量，用于 通过快速傅里叶变换或同步解调器的示例，其具有可在源极和检测器之间插入的格栅光栅，以及可在源极和检测器之间插入的线性可变带通滤波器。

公开(公告)号：US5477322A

公开(公告)日：1995-12-19

申请号：US322556

申请日：1994-10-13

Applicant: Donald R. Webster

Inventor： Donald R. Webster

IPC: G01J3/10 ,  G01J3/28 ,  G01J3/32

CPC classification number: G01J3/10 ,  G01J3/2846

Abstract: In a spectrophotometer, a light source is provided in the form of a multiplicity of light emitting diodes which transmit light through an entrance slit to irradiate an oscillating grating. The light is dispersed by the grating toward an exit slit which transmits a narrow bandwidth of light to irradiate a sample. As the grating oscillates, the wavelength transmitted through the exit slit is scanned through a selected spectrum. The diodes in the array each emit light in a different wavelength band so that the diodes as a group emit light throughout the selected spectrum. As the grating oscillates, the diodes are energized and extinguished in sequence so that no more than two diodes will be energized at any given instant of time and the energized diode will be emitting light at the wavelength dispersed by the grating to the exit slit.

Abstract translation: 在分光光度计中，以多个发光二极管的形式提供光源，其通过入射狭缝透射光以照射振荡光栅。 光被光栅分散到出射狭缝，该狭缝传播窄带宽的光以照射样品。 当光栅振荡时，通过出射狭缝传输的波长通过选定的光谱进行扫描。 阵列中的二极管各自发射不同波长带的光，使得作为一组的二极管在整个所选光谱中发光。 当光栅振荡时，二极管被依次通电并熄灭，使得在任何给定的时刻不超过两个二极管被激励，并且通电的二极管将以由光栅分散的波长发射到出射狭缝的光。

公开(公告)号：US4979123A

公开(公告)日：1990-12-18

申请号：US199765

申请日：1988-05-27

Applicant: Keun Y. Yang

Inventor： Keun Y. Yang

IPC: G01N21/62 ,  G01J1/44 ,  G01J3/06 ,  G01J3/18 ,  G01J3/28 ,  G01J3/32 ,  G01J3/36 ,  G01J3/443 ,  G01N21/67

CPC classification number: G01J3/06 ,  G01J3/28 ,  G01J3/36 ,  G01N21/67 ,  G01J2001/446 ,  G01J2003/2866 ,  G01J2003/2893

Abstract: An apparatus for determining concentrations of mineral elements comprising an improved spectrometer wherein the spectrometer functions to diffract the light to be measured by means of a rotary grating and to determine the strength of light by using a single PM tube and further detects the wavelength of the diffracted light, by using a laser beam generator, reflective mirrors, photo diodes so as to analyze the composition and the concentration of mineral elements.

Abstract translation: 一种用于确定矿物元素浓度的装置，包括改进的光谱仪，其中光谱仪用于通过旋转光栅衍射待测量的光并通过使用单个PM管确定光的强度，并进一步检测衍射的波长 光，通过使用激光束发生器，反射镜，光电二极管，以分析矿物元素的组成和浓度。

公开(公告)号：US4737030A

公开(公告)日：1988-04-12

申请号：US698640

申请日：1985-02-06

Applicant: Paul H. Lee ,  Frederick B. Brown

Inventor： Paul H. Lee ,  Frederick B. Brown

IPC: G01J1/06 ,  G01J3/00 ,  G01J3/06 ,  G01J3/12 ,  G01J3/18 ,  G01J3/28 ,  G01J3/32 ,  G01J3/14

CPC classification number: G01J3/32 ,  G01J2001/067 ,  G01J2003/064 ,  G01J2003/1208 ,  G01J2003/1828 ,  G01J2003/283 ,  G01J3/0264 ,  G01J3/027

Abstract: A computer controlled optical system for automatically acquiring and storing spectral radiance data for a multiplicity of targets. Several measurement modes are available for each target ranging from a single wavelength measurement to measurement over a plurality of discrete wavelengths. Stepping motive means prompted by computer instructions direct the apparatus to a given set of target coordinates.

Abstract translation: 一种用于自动获取和存储多个目标的光谱辐射数据的计算机控制的光学系统。 从单个波长测量到多个离散波长上的测量，每个目标都有几种测量模式。 步进动机意味着由计算机指令提示将装置引导到给定的一组目标坐标。

公开(公告)号：US4678325A

公开(公告)日：1987-07-07

申请号：US603512

申请日：1984-04-24

Applicant: Olavi Lehtikoski ,  Martti Nissinen

Inventor： Olavi Lehtikoski ,  Martti Nissinen

IPC: G01N21/27 ,  G01N21/86 ,  G01N21/88 ,  G01N21/89 ,  G01N21/892 ,  G01N21/93 ,  G01J3/32

CPC classification number: G01N21/86 ,  G01N2021/8663 ,  G01N21/474 ,  G01N2201/127

Abstract: The available equipment for measuring optical properties of paper are inconvenient in use and calibration thereof is inaccurate. In addition, properties of a sample are not analyzed sufficiently. According to the invention, a background screen (2) of an apparatus is adapted to be displaced relative to housing (1) and provided with elements (17-21) for measuring optical properties and calibrating said apparatus. In addition, an assembly (9-15) for processing scattered light comprises a grid (13) and at least one limiter (15), positioned between detector (16) and grid in the immediate proximity of detector and adapted to be movable along with detector over the entire range of a spectrum.

Abstract translation: 用于测量纸张光学性能的可用设备在使用上是不方便的，并且其校准不准确。 此外，样品的性质未被充分分析。 根据本发明，设备的背景屏幕（2）适于相对于壳体（1）移位，并且设置有用于测量光学特性并校准所述设备的元件（17-21）。 此外，用于处理散射光的组件（9-15）包括栅格（13）和至少一个限制器（15），其位于检测器（16）和格栅之间，其紧邻检测器，并适于与 检测器在整个频谱范围内。