公开(公告)号：US5369277A

公开(公告)日：1994-11-29

申请号：US598984

申请日：1990-10-17

Applicant: Daniel W. Knodle ,  Paul K. Graham ,  Lawrence L. Labuda

Inventor： Daniel W. Knodle ,  Paul K. Graham ,  Lawrence L. Labuda

IPC: G01J3/10 ,  G01J3/36 ,  G01N21/03 ,  G01N21/05 ,  G01N21/35 ,  G01N21/61

CPC classification number: G01N21/05 ,  G01N21/0303 ,  G01N21/3504 ,  G01J3/10 ,  G01J3/36 ,  G01N2021/0346

Abstract: Infrared radiation emitter units for gas analyzers and other applications. The emitter has a substrate with a film of electrically resistive, emissive material on one of its surfaces. The emitter is so mounted on an emitter unit base that it can freely expand as the emitter heats up. A lead frame commutator, employed to electrically connect the emitter to an external power source, also facilitates the assembly of the unit. A component with a plated, parabolic surface collimates and focuses into an appropriate beam the energy generated by the emitter.

Abstract translation: 用于气体分析仪和其他应用的红外辐射发射器单元。 发射器具有在其一个表面上具有电阻发光材料的膜的衬底。 发射极安装在发射器单元基座上，随着发射器加热，它可以自由扩展。 用于将发射器电连接到外部电源的引线框架换向器也有助于组件的组装。 具有电镀抛物面的部件准直并聚焦到适当的光束中，由发射器产生的能量。

公开(公告)号：US5286968A

公开(公告)日：1994-02-15

申请号：US834226

申请日：1992-03-10

Applicant: Daniele Fournier ,  Francois Charbonnier ,  Philippe Gleyzes ,  Albert-Claude Boccara

Inventor： Daniele Fournier ,  Francois Charbonnier ,  Philippe Gleyzes ,  Albert-Claude Boccara

IPC: G01J1/44 ,  G01B11/30 ,  G01J3/36 ,  G01J9/02 ,  G01J11/00 ,  H01J40/14

CPC classification number: G01J9/02 ,  G01B11/303

Abstract: The invention relates to a device for multichannel analog detection of a signal to be detected having a very good signal/noise ratio. It incorporates a modulator (53) producing a modulated signal S(P); means of synchronous attenuation (54) of variable phase .PHI. producing an attenuated modulated signal; a multipoint receiver (52) receiving the modulated-attenuated signal and producing for each point a primary analog signal; an integrator producing for each point a value V(P,.PHI.) resulting from the integration over N periods of the primary analog signal; means of reading, of digitizing and of storing the values V(P,.PHI.) for a given .PHI. value; a phase sequencer giving .PHI. the values .PHI..sub.0 +i2.pi./n successively where i is an integer varying from 1 to n; a digital processing unit making it possible to obtain data representative of S(P) from the values V(P,.PHI.). It is particularly well adapted to the detection of a luminous flux with an array of photodiodes.

Abstract translation: 一种用于检测具有优异信噪比的信号的多通道模拟检测装置。 该装置包括输出调制信号S（P）的调制器（53）。 具有可变相位PHI并输出衰减调制信号的同步衰减装置（54）; 多点接收器（52），用于接收衰减的调制信号并输出​​每个点的主模拟信号; 非积分器为每个点输出由主模拟信号的N个周期上的积分产生的值V（P，PHI）; 用于读取，数字化和存储给定值PHI的值V（P，PHI）的装置; 一个相位序列发生器，PHI 0 + i2 pi / n的PHI值为1和n之间的i整数; 以及数字处理单元，用于基于值V（P，PHI）获得表示S（P）的数据。 所述装置特别适用于用光电二极管阵列检测光通量。

公开(公告)号：US5164786A

公开(公告)日：1992-11-17

申请号：US720708

申请日：1991-06-25

Applicant: Michel Delhaye ,  Edouard Da Silva ,  Bernard Roussel

Inventor： Michel Delhaye ,  Edouard Da Silva ,  Bernard Roussel

IPC: G01J3/36 ,  G01J3/06 ,  G01J3/28 ,  G01J3/32

CPC classification number: G01J3/2803 ,  G01J3/06 ,  G01J2003/066 ,  G01J2003/2826 ,  G01J2003/2833 ,  G01J2003/2893 ,  G01J2003/2896 ,  G01J2003/326 ,  G01J3/0294 ,  G01J3/32

Abstract: The invention relates to a spectrometry installation comprising an inlet, optical fiber means suitable for receiving an inlet beam and delivering a spectrally dispersed image of the beam which image is limited to a selected spectral band, a multi-channel detection module receiving said spectral image, and processor means. The optical filter means are provided with a deflector stage. Control means are associated with the optical deflector means to define the spectral band in terms of center frequency and band width, and control means are associated therewith for displacing the spectral image over the detection module. An electronic control unit is provided to control the control means and to control the processor means in a plurality of operating modes, each of which comprises joint control of the selected spectral band, of the displacement of the spectral image, and of the processor means, for the purpose of selectively using a particular set of detector components.

Abstract translation: 本发明涉及一种光谱测量装置，其包括入口，适于接收入射光束的光纤装置，并将该光束的光谱分散图像传送到所选择的光谱带，多通道检测模块接收所述光谱图像， 和处理器装置。 滤光器装置设置有偏转器级。 控制装置与光学偏转器装置相关联以根据中心频率和带宽限定光谱带，并且控制装置与其相关联，用于使检测模块上的光谱图像移位。 提供电子控制单元以控制控制装置并且以多个操作模式来控制处理器装置，每个操作模式包括所选频谱带的联合控制，频谱图像的位移以及处理器装置， 以便选择性地使用特定的一组检测器部件。

公开(公告)号：US5157258A

公开(公告)日：1992-10-20

申请号：US396154

申请日：1989-08-21

Applicant: William J. Gunning, III ,  Natalie S. Gluck

Inventor： William J. Gunning, III ,  Natalie S. Gluck

IPC: G01J3/36 ,  G01J3/51 ,  G01J5/60

CPC classification number: G01J3/02 ,  G01J3/0259 ,  G01J3/36 ,  G01J5/602 ,  G01J2003/1213 ,  G01J2003/516

Abstract: The multicolor focal plane array of this invention detects and distinguishes between incoming electromagnetic radiation within a first band of wavelengths and incoming electromagnetic radiation within a second band of wavelengths which includes the first wavelength band. The array includes a substrate and a two dimensional array of detectors disposed on the substrate and responsive to electromagnetic radiation within a predetermined range of wavelengths including the first and second wavelength bands. A first thin film filter is disposed on the substrate and interposed between the incoming radiation and a subset of the detectors in the array to prevent radiation outside of the first wavlength band from reaching the detectors. A second thin film filter is disposed on the substrate and interposed between the incoming radiation and all of the detectors in the array to prevent radiation outside of the second wavelength band from reaching the detectors in the subset. The filter design uses a double optimized approach that effectively reduces the thickness of the multilayer stack requiring lithographic patterning. A thickness of less than five microns is achieved which enables the use of a multilayer resist lift-off method. The detectors in the subset are thus made sensitive to wavelengths within the first wavelength band, while the remaining detectors are sensitive to wavelengths within both the first and second wavelength bands.

Abstract translation: 本发明的多色焦平面阵列检测并区分第一波长带内的入射电磁辐射和包括第一波长带的第二波长波段内的入射电磁辐射。 该阵列包括衬底和设置在衬底上并响应包括第一和第二波长带的预定波长范围内的电磁辐射的检测器的二维阵列。 第一薄膜滤光器设置在基板上并且插入到入射辐射和阵列中的检测器的子集之间，以防止第一波长带外的辐射到达检测器。 第二薄膜过滤器设置在衬底上并且插入入射辐射与阵列中的所有检测器之间，以防止第二波长带外的辐射到达子集中的检测器。 滤波器设计采用双重优化方法，可有效降低需要光刻图案化的多层叠层的厚度。 实现了小于5微米的厚度，这使得能够使用多层抗蚀剂剥离方法。 因此，子集中的检测器对第一波长带内的波长敏感，而其余检测器对第一和第二波长带内的波长敏感。

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：US5037201A

公开(公告)日：1991-08-06

申请号：US502473

申请日：1990-03-30

Applicant: Zerol Smith, III ,  Robert F. Tow ,  Robert A. Street

Inventor： Zerol Smith, III ,  Robert F. Tow ,  Robert A. Street

IPC: G01J3/12 ,  G01J3/02 ,  G01J3/14 ,  G01J3/18 ,  G01J3/36 ,  G01J3/50

CPC classification number: G01J3/18 ,  G01J3/0259 ,  G01J3/14 ,  G01J3/0256 ,  G01J3/36

Abstract: A compact, self contained image resolving and sensing apparatus of the type used in electronic imaging applications includes a plurality of sensing devices such as photodetectors formed on a transparent substrate capable of resolving a polychromatic image incident thereupon. The mechanism by which the substrate resolves the incident image may be refraction, diffraction or other suitable mechanism. The sensing devices are sized and located on the substrate such that they are capable of detecting one or more wavelength components of the resolved polychromatic image. Logic and select circuitry may be formed on the substrate generally contemporaneously and of similar materials as the sensing device.

公开(公告)号：US5009099A

公开(公告)日：1991-04-23

申请号：US349201

申请日：1989-05-09

Applicant: Gregory J. Wells ,  Barbara A. Bolton

Inventor： Gregory J. Wells ,  Barbara A. Bolton

IPC: G01J3/32 ,  G01J3/36 ,  G01N21/73 ,  G01N30/62 ,  G01N30/74

CPC classification number: G01N21/73 ,  G01J2003/323 ,  G01J3/36 ,  G01N30/74

Abstract: A method of correcting for background changes in a plasma emission detector comprising a photodetector array is disclosed. In the photodetector array a plurality of sensors are used to detect the emission lines from a discrete number of selected elements including carbon. It is shown that, to the first order, there is a correlation between the response at detectors other than the carbon detector with the response at a carbon detector. The exact extent of this correlation is highly dependent on the amount of nitrogen present in the carrier gas used in the system. A calibration curve can be generated which allows compensation at a frequency of interest as a function of the magnitude of the carbon signal. This curve will depend on the level of nitrogen in the carrier gas and can be empirically determined each time a new bottle of gas is connected to the system. In a preferred embodiment, the calibration curve is not referred to unitl the carbon response reaches a preselected threshold value corresponding to the point on the calibration curve where there is a measurable spurious reading.

公开(公告)号：US4902136A

公开(公告)日：1990-02-20

申请号：US261489

申请日：1988-10-24

Applicant: Rudolf Mueller ,  Wolfgang Albertshofer

Inventor： Rudolf Mueller ,  Wolfgang Albertshofer

IPC: G01J3/36 ,  G01J3/26 ,  G01J3/28 ,  H01L27/144 ,  H01L31/0216 ,  H01L31/10

CPC classification number: G01J3/26 ,  G01J3/2803 ,  H01L27/1446 ,  H01L31/02165 ,  G01J2003/2806

Abstract: An arrangement for high resolution spectroscopy includes a spatially or chronologically tunable interference filter with a wavelength selective diode array composed of a plurality of diode elements arranged side-by-side.

Abstract translation: 用于高分辨率光谱的布置包括空间上或时间上可调的干涉滤光器，其具有由并排布置的多个二极管元件组成的波长选择二极管阵列。

公开(公告)号：US4810091A

公开(公告)日：1989-03-07

申请号：US139509

申请日：1987-12-30

Applicant: James J. Sullivan

Inventor： James J. Sullivan

IPC: G01J3/02 ,  G01J3/28 ,  G01J3/36 ,  G02B7/28 ,  G02B7/36 ,  G03B13/36

CPC classification number: G02B7/36 ,  G01J3/2803

Abstract: A multi-element optical detector having a planar array of detector elements is focused at the focal plane of an optical spectrometer by placing the detector with the detecting surface of the array facing the optical spectrometer and being substantially perpendicular to the axis of the path of the light from the optical spectra to the focal plane. Relative movement is provided between the detector and the focal plane along said axis so that the detector array is placed at several different positions with respect to the focal plane. At each position the output values of the detector elements of the array are measured and the second difference of the output values is determined by the equation (-F1+2.times.F2-F3), where F1, F2, and F3 are the output values of three of the elements. The optical detector is placed at the position which provides the maximum value of the second difference, which is the position of the focal plane.

公开(公告)号：US4802763A

公开(公告)日：1989-02-07

申请号：US173151

申请日：1988-03-25

Applicant: Hermann Gerlinger ,  Gerhard Hohberg ,  Horst Schneider

Inventor： Hermann Gerlinger ,  Gerhard Hohberg ,  Horst Schneider

IPC: G01N21/57 ,  G01J3/28 ,  G01N21/47 ,  G01J3/36 ,  G01J3/42

CPC classification number: G01N21/474 ,  G01J3/504 ,  G01J3/2803 ,  G01N2021/4742 ,  G01N2201/0696

Abstract: A measuring apparatus includes a freely moving measuring head which is connected to a stationary base unit via light conductors and an electrical cable. The radiation reflected from the sample is simultaneously measured at three different angles. For this purpose, three diode-array spectrometers are provided in the stationary base unit. The spectrum of the radiation illuminating the sample can be simultaneously measured with a fourth diode-array spectrometer.

Abstract translation: 测量装置包括自由移动的测量头，其经由光导体和电缆连接到固定基座单元。 从样品反射的辐射以三个不同的角度同时测量。 为此，在固定基座单元中提供三个二极管阵列光谱仪。 照射样品的辐射光谱可以用第四个二极管阵列光谱仪同时测量。