公开(公告)号：WO1990005286A1

公开(公告)日：1990-05-17

申请号：PCT/US1989004797

申请日：1989-10-30

Applicant: EASTMAN KODAK COMPANY

Inventor： EASTMAN KODAK COMPANY ,  MILCH, James, Roger

IPC: G01J03/28

CPC classification number: H04N1/00013 ,  G01J3/0205 ,  G01J3/04 ,  G01J3/28 ,  G01J3/40 ,  G01J2003/2866 ,  H04N1/00002 ,  H04N1/00023 ,  H04N1/00034 ,  H04N1/00053 ,  H04N1/00063

Abstract: Spectrometer apparatus (10), for self-calibrating a color image scanner (30) of the line scanner or area scanner type, comprises a member (20), having an optical slit (18), movable into position on an optical axis (14) of the scanner between its polychromatic light source (12) and its focusable lens (16) in a plane occupied by a color image when it is scanned. A diffraction grating (24) is similarly movable onto the optical axis, a given distance from an image sensor (22) of the scanner. The light source illuminates the slit and the diffraction grating disperses transmitted polychromatic light according to its wavelength, forming duplicate spectra off-axis across respective halves of the image sensor, with longer wavelengths being diverted to respectively higher angles.

公开(公告)号：WO1996010163A1

公开(公告)日：1996-04-04

申请号：PCT/GB1995002304

申请日：1995-09-28

Applicant: BRITISH TECHNOLOGY GROUP LIMITED ,  BELTON, Peter, Stanley ,  WRIGHT, Kevin, Michael

Inventor： BRITISH TECHNOLOGY GROUP LIMITED

IPC: G01J03/28

CPC classification number: G01J3/2846 ,  G01J2003/2866

Abstract: The invention is a device for the multiplex detection of a plurality of characteristic signals from a plurality of samples. Previous multiplex systems using Hadamard transform multiplexing were often limited to 4n-1 samples (n = 1, 2, 3 etc.). The present invention overcomes this limitations by encoding signals after they had been modulated by a sine function or a cosine function (or a combination of sine and cosine functions). Such modulation of signals using the "sine/cosine transform" is easier to implement than Hadamard transforms and there is no limitation imposed on the number of samples.

Abstract translation: 本发明是用于从多个样本多路复用检测多个特征信号的装置。 使用Hadamard变换复用的先前的多路复用系统通常限于4n-1个样本（n = 1,2,3等）。 本发明通过在通过正弦函数或余弦函数（或正弦和余弦函数的组合）调制之后对信号进行编码来克服这些限制。 使用“正弦/余弦变换”的信号的这种调制比Hadamard变换更容易实现，并且对样本数量没有限制。

公开(公告)号：WO1995033188A1

公开(公告)日：1995-12-07

申请号：PCT/US1995006605

申请日：1995-05-30

Applicant: RECON ,  SCIENCE & ENGINEERING SERVICES INC. ,  LEE, Hyo, Sang ,  NOTARI, Anthony

Inventor： RECON ,  SCIENCE & ENGINEERING SERVICES INC.

IPC: G01J03/28

CPC classification number: G01J3/2889 ,  G01J3/4406 ,  G01J3/453

Abstract: A time resolved spectroscopy system and method are provided using digital processing tehcniques of a low power, continuous wave signal generated by a continuous wave light source, such as a cw laser. Time elapse is determined by measuring the time shift of the signal modulation sequence using the cross correlation of a return signal with the reference signal. The high resolution time delay is introduced at the start of each modulation cycle and the high resolution measurement is constructed by interlacing a data set based on the delay information. The high resolution TRS or fluorescence measurement is achieved by correlation calculation of the measured data and the reference code and deconvolving the autocorrelation function of the reference code.

Abstract translation: 使用由连续波光源（例如cw激光器）产生的低功率连续波信号的数字处理技术来提供时间分辨光谱系统和方法。 通过使用返回信号与参考信号的互相关来测量信号调制序列的时移来确定时间流逝。 在每个调制周期开始时引入高分辨率时间延迟，并且通过基于延迟信息交织数据集来构造高分辨率测量。 高分辨率TRS或荧光测量通过测量数据和参考代码的相关计算实现，并对参考代码的自相关函数进行去卷积。

公开(公告)号：WO1994024527A1

公开(公告)日：1994-10-27

申请号：PCT/US1994004384

申请日：1994-04-21

Applicant: KAISER OPTICAL SYSTEMS, INC.

Inventor： KAISER OPTICAL SYSTEMS, INC. ,  BATTEY, David, E. ,  OWEN, Harry ,  TEDESCO, James, M.

IPC: G01J03/28

CPC classification number: G01J3/36 ,  G01J3/02 ,  G01J3/0256 ,  G01J3/0262 ,  G01J3/1838 ,  G01J3/2803

Abstract: An optical spectrograph utilizes a plurality of holographic transmission optical gratings (34, 36) operative to receive an incoming source of light (26) to be analyzed and diffract the light such that different spectral components impinge upon spatially separated regions of an opto-electric detector (10). Various grating configurations are disclosed, including a physical stack of gratings conductive to extreme compactness, as well as a spaced-apart configuration used to preclude spectral cross-talk in certain configurations. Diverging light emerging from a fiber-optic bundle (22) collimated by a first lens assembly (28) prior to passing through the gratings (34, 36) and a second lens assembly (50) is used to focus the diffracted light onto the detectors (10), preferably in the form of a two-dimensional CCD array.

Abstract translation: 光学光谱仪利用多个全息透射光栅（34,36），其可操作地接收待分析的入射光源（26）并衍射光，使得不同的光谱分量撞击光电探测器的空间分离的区域 （10）。 公开了各种光栅配置，包括导电至极致紧密度的光栅的物理堆叠，以及用于在某些配置中排除光谱串扰的间隔配置。 在穿过光栅（34,36）和第二透镜组件（50）之前，由第一透镜组件（28）准直的从光纤束（22）出射的散射光用于将衍射光聚焦到检测器 （10），优选为二维CCD阵列的形式。

公开(公告)号：WO1994015184A1

公开(公告)日：1994-07-07

申请号：PCT/US1993012584

申请日：1993-12-27

Applicant: HINNRICHS, Michele ,  MORRIS, George, Michael

IPC: G01J03/28

CPC classification number: G01J3/2803 ,  G01J3/2823

Abstract: A spectrophotometer useful for spectral analysis of light emanating from one or more targets (37) within an image. The apparatus comprises a diffractive lens (13) having an optical axis, a planar array of photodetector elements (pixel's) (32), a means for changing the distance between the photodetector array (32) and the diffractive lens (31) along the optical axis and a signal processor (34). If either the array (32) or lens (31) is moved along the optical axis, different wavelengths of light from each target within the image come into or out of focus on particular photodetector elements in the plane of array (32) generating sequential images corresponding to different wavelenghts. By tracking each pixel's output in the array as a function of lens position relative to the array, the spectral composition of each target within the image is generated.

Abstract translation: 用于对图像内的一个或多个目标（37）发出的光进行光谱分析的分光光度计。 该装置包括具有光轴的衍射透镜（13），光电检测器元件（像素）的平面阵列（32），用于沿光学器件改变光电检测器阵列（32）和衍射透镜（31）之间的距离的装置 轴和信号处理器（34）。 如果阵列（32）或透镜（31）沿着光轴移动，则来自图像中每个目标的不同波长的光在阵列（32）的平面内的特定光电检测器元件上进入或离开聚焦，从而产生顺序图像 对应不同的波浪。 通过跟踪阵列中每个像素的输出作为相对于阵列的透镜位置的函数，生成图像内每个目标的光谱组成。

公开(公告)号：WO1994011716A1

公开(公告)日：1994-05-26

申请号：PCT/US1993011115

申请日：1993-11-16

Applicant: SIMMONDS PRECISION PRODUCTS, INC.

Inventor： SIMMONDS PRECISION PRODUCTS, INC. ,  SPILLMAN, William

IPC: G01J03/28

CPC classification number: G01R33/0322 ,  G01D5/26 ,  G01J3/12 ,  G01J3/2803 ,  G01J9/00 ,  G01J2003/1269 ,  G02F1/09 ,  G02F1/292

Abstract: An apparatus and method of wavelength detection and parameter sensing uses a variable magnetic field applied to a Faraday effect thin magnetizable film to perform spectral analysis based on detected intensity distribution of diffracted light for known magnetic field strengths. The strength of the applied magnetic field can also be varied by change in a physical parameter relative to a fixed magnet in a magnetic circuit which generates a magnetic field about the grating to produce diffracted wavelengths which correspond to the parameter which influences the magnetic circuit.

Abstract translation: 波长检测和参数检测的装置和方法使用施加到法拉第效应薄磁化膜的可变磁场，以基于已知磁场强度的衍射光的检测强度分布进行光谱分析。 所施加的磁场的强度也可以通过在磁路中相对于固定磁体的物理参数的变化来改变，所述磁路产生围绕光栅的磁场，以产生对应于影响磁路的参数的衍射波长。

公开(公告)号：WO1992014997A1

公开(公告)日：1992-09-03

申请号：PCT/FI1992000044

申请日：1992-02-17

Applicant: HELSINGIN MITTAKOJE OY ,  KAUPPINEN, Jyrki

Inventor： HELSINGIN MITTAKOJE OY

IPC: G01J03/28

CPC classification number: G06F17/141 ,  G01J3/453 ,  G01R33/56

Abstract: A procedure for enhancing the resolution of spectral data, in which the Fourier self-deconvolution method FSD is used to produce from the input spectrum a data set in an interval 0 - Lt, the maximum entropy method MEM is used to compute prediction error filter coefficients {ak} from this data, and by the linear prediction method LP, using said coefficients {ak} and the data points 0 to M, data are predicted in the interferogram I(x) beyond Lt, whereby in the output spectrum maximum line narrowing with minimum distortion is achieved.

Abstract translation: 用于增强频谱数据分辨率的过程，其中傅里叶自解卷积方法FSD用于从输入频谱产生在间隔0-Lt中的数据集，最大熵方法MEM用于计算预测误差滤波器系数 {ak}，利用线性预测方法LP，使用所述系数{ak}和数据点0〜M，在超过Lt的干涉图I（x）中预测数据，由此在输出频谱最大线变窄 实现最小失真。

公开(公告)号：WO1989000280A1

公开(公告)日：1989-01-12

申请号：PCT/GB1988000526

申请日：1988-07-05

Applicant: BECKMAN RIIC LIMITED ,  SCOTT, William, Anthony ,  McKENZIE, Robert, Neilson

Inventor： BECKMAN RIIC LIMITED

IPC: G01J03/28

CPC classification number: G01J3/32 ,  G01J3/02 ,  G01J3/0208 ,  G01J3/021 ,  G01J3/0237 ,  G01J3/1838 ,  G01J2003/1213 ,  G01J2003/1295

Abstract: A beam of visible or UV light is directed by a sliding mirror (20) onto a diffraction grating (33) through each of a plurality of collimators (29 to 32) in turn. At each turn a photodiode array (35) measures the spectrum of a corresponding portion of the range of frequencies over which the instrument operates. A set of broad-band band-pass filters (16) may eliminate undesired frequencies at each turn.

Abstract translation: 可见光或UV光束依次通过滑动反射镜（20）引导到衍射光栅（33）上，通过多个准直器（29至32）中的每一个。 在每个转弯处，光电二极管阵列（35）测量仪器操作的频率范围的对应部分的频谱。 一组宽带带通滤波器（16）可以消除每个转弯处的不期望的频率。

公开(公告)号：WO1988000688A1

公开(公告)日：1988-01-28

申请号：PCT/US1987001337

申请日：1987-06-08

Applicant: SANTA BARBARA RESEARCH CENTER

Inventor： SANTA BARBARA RESEARCH CENTER ,  BURKE, Elliot, M.

IPC: G01J03/28

CPC classification number: G01J3/2823 ,  G01J3/14 ,  G01J3/2803

Abstract: An imaging spectrometer device useful for providing a dispersed image of the earth's surface (useful in botanical, geographical, geological, and hydrological scientific studies) from a flying platform. In accordance with this invention, a spectrometer device is provided which can be attached to an existing optical telescope. The spectrometer provides a planar focal plane image which can be processed in a number of manners, for example, by using an array of photosensitive elements. In accordance with the principal feature of this invention, the spectrometer includes an optical system wherein light rays are directed through prisms as they pass through the two symmetrical "legs" of the spectrometer. The spectrometer employs a reflecting concave mirror and prism assemblies having parallel entrance and exit surfaces. In accordance with a first embodiment, a single prism assembly is employed whereas the second described embodiment uses a pair of generally identical prism assemblies.

公开(公告)号：WO1998010254A1

公开(公告)日：1998-03-12

申请号：PCT/US1997015459

申请日：1997-09-03

Applicant: ERIM INTERNATIONAL, INC.

Inventor： ERIM INTERNATIONAL, INC. ,  EISMANN, Michael, T.

IPC: G01J03/28

CPC classification number: G01J3/2823 ,  G01J3/0208 ,  G01J3/14

Abstract: A high-sensitivity sensor configuration improves upon airbone hyperspectral and multispectral sensing, particularly for thermal/infrared military target detection and/or identification. The invention combines dispersive spectrometer and filtered TDI detector techniques to provide improved NESR through increased dwell time, along with interband temporal simultaneity and spatial registration. Embodiments relating to hyperspectral, multispectral, and dual-band arrangements are disclosed.

Abstract translation: 高灵敏度传感器配置改善了空中高光谱和多光谱感测，特别是对于热/红外军事目标检测和/或识别。 本发明结合了色散光谱仪和经过滤的TDI检测器技术，通过增加驻留时间以及带间时间同时性和空间配准提供改进的NESR。 公开了与高光谱，多光谱和双频带布置有关的实施例。