公开(公告)号：US5247185A

公开(公告)日：1993-09-21

申请号：US782990

申请日：1991-10-28

申请人： Roger O. Herrera ,  James R. Braig ,  Daniel S. Goldberger

发明人： Roger O. Herrera ,  James R. Braig ,  Daniel S. Goldberger

IPC分类号： G01J5/02 ,  G01J3/10 ,  G01J5/00 ,  G01N21/01 ,  G01N21/35 ,  G05D23/24 ,  H05B3/46

CPC分类号： G05D23/24 ,  G01J3/108 ,  H05B3/46 ,  G01N21/3504 ,  G01N2201/069

摘要： An infrared source which provides a miniature, highly stable and efficient source of infrared energy for use with infrared detectors and the like. The infrared source of the invention incorporates a platinum resistance temperature detector (RTD) which is integrated with the heater element to provide a means of electronic servo control of the heater temperature. The heater element and the RTD are tightly coupled thermally to provide accurate, continuous tracking and control of the heater temperature. The infrared source design provides excellent infrared energy output with less than one watt input power to the heater.

摘要翻译： 提供用于红外探测器等的微型，高度稳定和高效的红外能量源的红外源。 本发明的红外光源包括与加热器元件集成的铂电阻温度检测器（RTD），以提供加热器温度的电子伺服控制装置。 加热器元件和RTD紧密耦合，以提供对加热器温度的精确，连续的跟踪和控制。 红外源设计为加热器提供了不到一瓦特输入功率的出色的红外能量输出。

公开(公告)号：US5185638A

公开(公告)日：1993-02-09

申请号：US691941

申请日：1991-04-26

申请人： Vincent C. Conzola ,  Norman E. Rittenhouse ,  Jeffrey M. Solomon ,  Thomas J. Toomey ,  Peter J. Yablonsky

发明人： Vincent C. Conzola ,  Norman E. Rittenhouse ,  Jeffrey M. Solomon ,  Thomas J. Toomey ,  Peter J. Yablonsky

IPC分类号： G01N21/01 ,  F21V8/00 ,  G01N21/84 ,  G01N21/88 ,  G01N21/956 ,  G01R31/308 ,  H05B37/02 ,  H05K3/00

CPC分类号： G01R31/308 ,  G01N21/8806 ,  G02B6/0006 ,  G01N2021/887 ,  G01N2021/95638 ,  G01N2201/069

摘要： The illumination system as a part of an optical inspection system, the total inspection system itself, and the method of illuminating and inspecting a workpiece. The illumination system is computer controlled as to a level of intensity and adjustable as to angle of incidence. The illumination system includes illumination control electronics, a quad quartz halogen lamp array light source, a fiber optic line converter and an illumination collection system, having a collimator lens array and a focusing/field coverage lens. As a result of the present invention, determinations of false defects on the PCB are minimized. Human contact with the PCB is also minimized and the rate of inspections performable is increased.

摘要翻译： 作为光学检查系统的一部分的照明系统，总检查系统本身以及照明和检查工件的方法。 照明系统是计算机控制的一个强度水平和可调节的入射角。 照明系统包括照明控制电子器件，四面体卤素灯阵列光源，光纤线路转换器和照明收集系统，具有准直透镜阵列和聚焦/场覆盖透镜。 作为本发明的结果，PCB上的假缺陷的确定被最小化。 与PCB的人体接触也被最小化，检查速度可以提高。

公开(公告)号：US5159185A

公开(公告)日：1992-10-27

申请号：US769220

申请日：1991-10-01

申请人： Brian C. Lehr

发明人： Brian C. Lehr

IPC分类号： G01J1/32 ,  G01J3/10

CPC分类号： G01J3/10 ,  G01J1/32 ,  G01J3/524 ,  G01N2021/177 ,  G01N2201/069

摘要： A lighting control system for maintaining the light source and measuring components of a color measurement station in a stabilized condition. A high frequency fluorescent lamp drive is controlled by a ballast which is adjusted by a control signal generated by using a video camera to simultaneously view a standard tile and a test sample. One of the color signals in the standard tile portion of the signal is compared with prescribed information stored in a computer, and if the standard tile signal differs from the prescribed information, the microcomputer adjusts the fluorescent lamp drive until the signal from the standard tile reaches the prescribed level, at which time the color signals from the test sample are evaluated while the lamp intensity and camera response are generating standardized measurement conditions.

摘要翻译： 一种照明控制系统，用于将颜色测量站的光源和测量部件保持在稳定状态。 高频荧光灯驱动器由通过使用摄像机产生的控制信号调节的镇流器控制，以同时观看标准瓦片和测试样品。 将信号的标准瓦片部分中的一个颜色信号与存储在计算机中的规定信息进行比较，并且如果标准瓦片信号与规定信息不同，则微计算机调节荧光灯驱动直到来自标准瓦片的信号到达 在此时，在灯强度和相机响应正在产生标准化测量条件的同时评估来自测试样品的颜色信号。

公开(公告)号：US5042948A

公开(公告)日：1991-08-27

申请号：US538363

申请日：1990-06-14

申请人： Thomas A. Fletcher

发明人： Thomas A. Fletcher

IPC分类号： G01J3/10 ,  G01J3/50 ,  G01N21/25

CPC分类号： G01J3/50 ,  G01J3/10 ,  G01J3/502 ,  G01N21/255 ,  G01J2003/466 ,  G01N2201/069 ,  G01N2201/0694

摘要： A colorimeter provides compensation for changes in the color signature of an object due to lamp aging. A current measuring circuit measures current to the lamp during an initial training of the colorimeter and stores a value I.sub.T indicative of the lamp current at training. When an object is scanned by the colorimeter, lamp current is again sensed and assigned a value I.sub.S. Comparison between a sensed color signature and a stored color signature then occurs. Compensation is accomplished by modifying one of the two signatures by a ratio including I.sub.S and I.sub.T.

公开(公告)号：US09933360B2

公开(公告)日：2018-04-03

申请号：US13322439

申请日：2010-06-04

申请人： Robert Jones ,  Matthew James Hayes ,  Paul David Ryder

发明人： Robert Jones ,  Matthew James Hayes ,  Paul David Ryder

IPC分类号： G01N21/359 ,  G01N33/28 ,  G01N21/3577 ,  G01N21/31

CPC分类号： G01N21/359 ,  G01N21/3577 ,  G01N33/2847 ,  G01N2021/3137 ,  G01N2021/3148 ,  G01N2021/3188 ,  G01N2201/069

摘要： A device for determining the composition of a mixture of fluids by spectral absorption, comprises: a radiation source; a detector for detecting radiation that has been attenuated by the mixture; and a device for separating the radiation into a wavelength band corresponding to an absorption band of one of the fluids, a wavelength band corresponding to an absorption band of another of the fluids, and at least one reference wavelength band substantially adjacent to each of the absorption bands, and especially adjacent to each side of the absorption band or group of absorption bands. The device may be used to determine the composition of mixtures of oil, water and gaseous hydrocarbons in oil wells where there is a very large degree of time varying scattering e.g. Rayleigh and Mie scattering due to turbulence.

公开(公告)号：US08294887B1

公开(公告)日：2012-10-23

申请号：US12841319

申请日：2010-07-22

申请人： Stephen Biellak ,  Daniel Kavaldjiev ,  George J. Kren ,  Anatoly Romanovsky ,  Christian Wolters

发明人： Stephen Biellak ,  Daniel Kavaldjiev ,  George J. Kren ,  Anatoly Romanovsky ,  Christian Wolters

IPC分类号： G01N21/00

CPC分类号： G01N21/9501 ,  G01N21/95607 ,  G01N2021/8822 ,  G01N2201/069

摘要： An inspection system may include, but is not limited to: an illumination subsystem for directing light to an inspection specimen comprising: a power attenuator subsystem configured for altering the power level of a light beam emitted by the illumination subsystem; and a power attenuation control subsystem configured to provide control signals to the power attenuator subsystem according to a detected level of light scattering by the inspection specimen upon illumination by the illumination subsystem. A method for scatterometry inspection may include, but is not limited to: directing light having a power level to an inspection specimen from a light source; detecting light scattered from the specimen; and modifying a power level of one or more intermediate light beams within the light source according to a level of light scattering by the specimen upon illumination by the light source.

摘要翻译： 检查系统可以包括但不限于：用于将光引导到检查样本的照明子系统，包括：功率衰减器子系统，被配置为改变由照明子系统发射的光束的功率电平; 以及功率衰减控制子系统，被配置为根据所述照明子系统照明时检测样本的检测到的光散射水平向所述功率衰减子系统提供控制信号。 用于散射检查的方法可以包括但不限于：将来自光源的具有功率水平的光引导到检查样本; 检测从样品散射的光; 以及根据光源照射时样品的光散射水平来修改光源内的一个或多个中间光束的功率电平。

公开(公告)号：US4998043A

公开(公告)日：1991-03-05

申请号：US345883

申请日：1989-05-01

申请人： Yoshihara Unami ,  Masao Tanaka

发明人： Yoshihara Unami ,  Masao Tanaka

IPC分类号： G01J1/16 ,  G01N21/25 ,  G01S7/491 ,  H05B33/08

CPC分类号： H05B33/0851 ,  G01N21/255 ,  H05B33/0803 ,  G01J2001/1636 ,  G01N2201/0621 ,  G01N2201/069 ,  G01S7/4911

摘要： An LED stabilizing light source device comprises an LED, a drive circuit for driving the LED, a wavelength filter for filtering the light emitted from the LED, a light splitter for splitting the light passing through the filter, a photodiode for receiving the split light. The device further comprises a feedback loop for feeding an output of the photodiode to the drive circuit.

摘要翻译： LED稳定光源装置包括LED，用于驱动LED的驱动电路，用于对从LED发射的光进行滤波的波长滤波器，用于分离通过滤光器的光的分光器，用于接收分离光的光电二极管。 该装置还包括用于将光电二极管的输出馈送到驱动电路的反馈回路。

公开(公告)号：US3941487A

公开(公告)日：1976-03-02

申请号：US516008

申请日：1974-10-18

申请人： Robert J. Ehret ,  Donald E. Stephens ,  Douglas H. Durland ,  Thomas D. Sharples

发明人： Robert J. Ehret ,  Donald E. Stephens ,  Douglas H. Durland ,  Thomas D. Sharples

IPC分类号： G01J3/12 ,  G01N21/03 ,  G01N21/31 ,  G01J3/46 ,  G01N1/10 ,  G01N21/28

CPC分类号： G01N21/314 ,  G01J2003/1213 ,  G01J2003/1226 ,  G01N2021/3166 ,  G01N21/03 ,  G01N2201/0231 ,  G01N2201/069

摘要： A light beam is passed through a cuvette, through which flows liquid to be analyzed optically for concentration of color reacted amino acids. The emergent beam is directed through a series of dichroic beam separators and pass band filters to produce three beams of substantially three different wavelengths. Photoelectric detectors produce electrical signals corresponding to each of the three wavelengths. Two of the signals are characteristic of the substance to be detected. The third is subtracted from the other two wavelength signals to produce a pair of output signals from which base line noise has been substantially eliminated.

摘要翻译： 将光束通过比色皿，通过该比色液体流动待分析的液体以浓缩着色反应的氨基酸。 出射光束被引导通过一系列二向色光束分离器和通带滤光器以产生三个基本上三个不同波长的光束。 光电探测器产生对应于三个波长中的每一个的电信号。 两个信号是待检测物质的特征。 从其他两个波长信号中减去第三个，以产生基本上消除了基线噪声的一对输出信号。

公开(公告)号：US20230280331A1

公开(公告)日：2023-09-07

申请号：US18004399

申请日：2021-07-08

申请人： I-SEP

发明人： Stéphane Chollet ,  Gaëtan Coulon ,  Benoît Decouture ,  Sylvain Picot ,  Patricia Forest-Villegas ,  Francis Gadrat

IPC分类号： G01N33/49 ,  G01N21/84 ,  G01N21/25 ,  A61M1/36

CPC分类号： G01N33/4915 ,  G01N21/84 ,  G01N21/255 ,  A61M1/3609 ,  A61M2205/3306 ,  A61M2230/207 ,  G01N2201/069

摘要： The invention relates to a device and method for determining the haematocrit and/or haemoglobin level of a liquid flowing in a tubular portion (2), the method comprising:—emitting light beams in the direction of the tubular portion (2) with at least two light sources (11; 21), each of the two light sources (11; 21) being configured to emit light beams at an emission wavelength chosen to correspond to an isobestic point of the haemoglobin;—receiving light signals transmitted through the tubular portion (2) with at least two light sensors (12; 22), each light sensor (12; 22) being associated with one of the two light sources (11; 21);—calculating the haematocrit or haemoglobin level in the liquid by processing the light signals received by the light sensors (12; 22); characterised in that the emission power of at least one of the light sources (11; 21) is modified while the haematocrit and/or the haemoglobin level is determined according to the haematocrit and/or respectively the haemoglobin level calculated for the liquid.

公开(公告)号：US20180252653A1

公开(公告)日：2018-09-06

申请号：US15760067

申请日：2016-09-15

申请人： Marc BREIT

发明人： Marc BREIT

IPC分类号： G01N21/88 ,  G01N21/64 ,  G01N21/91

CPC分类号： G01N21/8806 ,  F21L2001/00 ,  G01N21/6447 ,  G01N21/8803 ,  G01N21/91 ,  G01N2201/061 ,  G01N2201/06146 ,  G01N2201/06153 ,  G01N2201/0624 ,  G01N2201/069

摘要： A device for emitting electromagnetic radiation, in particular UV radiation, including at least one radiating unit that only emits radiation at visible wavelengths. The device further includes a unit for detecting a functional error of the radiating unit. In practice, the radiating unit is provided for emitting only UV radiation and/or IR radiation and is formed by a light diode. The detection unit is designed to continuously monitor the radiating unit for functional errors, and the device includes an open-loop and/or closed-loop control unit which is provided to automatically switch off the radiating unit and/or display the functional error, upon detection of the functional error by the detection unit.