公开(公告)号：US09201018B2

公开(公告)日：2015-12-01

申请号：US14139303

申请日：2013-12-23

Applicant: Frank Martin Haran

Inventor： Frank Martin Haran

IPC: G01N21/86 ,  G01N21/3581 ,  G01J3/42 ,  G01N21/27

CPC classification number: G01N21/86 ,  G01J3/32 ,  G01J3/36 ,  G01J3/42 ,  G01J2003/323 ,  G01N21/27 ,  G01N21/3559 ,  G01N21/3581 ,  G01N21/8901 ,  G01N2021/8663 ,  G01N2021/869 ,  G01N2201/061 ,  G01N2201/08

Abstract: Scanning sensor for measuring properties of continuous flat sheet, that is moving in the machine direction, employs an IR radiation source for directing a beam of incident IR radiation that impinges the sheet. The IR source has elongated lamp filament that generates IR radiation and the corresponding spot size formed on the sheet has elongated dimensions with its long axis being aligned with the machine direction. Aligned with the MD maximizes sensor spatial resolution in the cross direction. The sensor can employ a receiver having rectangular geometry with its long axis being aligned also in the MD. Scanning sensor can operate in the reflective, transmissive, or offset transmission mode to monitor characteristics of flat sheets, particularly of paper or plastic products.

Abstract translation: 用于测量沿机器方向移动的连续平板的性质的扫描传感器采用IR辐射源来引导撞击片材的入射IR辐射束。 IR源具有细长的灯丝，其产生IR辐射，并且形成在片材上的相应光斑尺寸具有细长尺寸，其长轴与机器方向对准。 与MD对齐，使传感器空间分辨率最大化。 传感器可以采用具有矩形几何形状的接收器，其长轴也在MD中对准。 扫描传感器可以在反射，透射或偏移传输模式下操作，以监测平板，特别是纸或塑料制品的特性。

公开(公告)号：US20150177155A1

公开(公告)日：2015-06-25

申请号：US14139303

申请日：2013-12-23

Applicant: Frank Martin Haran

Inventor： Frank Martin Haran

IPC: G01N21/86 ,  G01N21/27

CPC classification number: G01N21/86 ,  G01J3/32 ,  G01J3/36 ,  G01J3/42 ,  G01J2003/323 ,  G01N21/27 ,  G01N21/3559 ,  G01N21/3581 ,  G01N21/8901 ,  G01N2021/8663 ,  G01N2021/869 ,  G01N2201/061 ,  G01N2201/08

Abstract: Scanning sensor for measuring properties of continuous flat sheet, that is moving in the machine direction, employs an IR radiation source for directing a beam of incident IR radiation that impinges the sheet. The IR source has elongated lamp filament that generates IR radiation and the corresponding spot size formed on the sheet has elongated dimensions with its long axis being aligned with the machine direction. Aligned with the MD maximizes sensor spatial resolution in the cross direction. The sensor can employ a receiver having rectangular geometry with its long axis being aligned also in the MD. Scanning sensor can operate in the reflective, transmissive, or offset transmission mode to monitor characteristics of flat sheets, particularly of paper or plastic products.

Abstract translation: 用于测量沿机器方向移动的连续平板的性质的扫描传感器采用IR辐射源来引导撞击片材的入射IR辐射束。 IR源具有细长的灯丝，其产生IR辐射，并且形成在片材上的相应光斑尺寸具有细长尺寸，其长轴与机器方向对准。 与MD对齐，使传感器空间分辨率最大化。 传感器可以采用具有矩形几何形状的接收器，其长轴也在MD中对准。 扫描传感器可以在反射，透射或偏移传输模式下操作，以监测平板，特别是纸或塑料制品的特性。

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：US09383259B2

公开(公告)日：2016-07-05

申请号：US14466119

申请日：2014-08-22

Applicant: Nokia Technologies Oy

Inventor： Ravi Shenoy ,  Krishna Annasagar Govindarao ,  Mithun Uliyar ,  Veldandi Muninder

IPC: G01J5/00 ,  G01J3/28 ,  H04N9/04 ,  H01L27/146 ,  G02B5/20 ,  G01J3/02 ,  G01J3/32

CPC classification number: G01J3/2823 ,  G01J3/0213 ,  G01J3/32 ,  G01J2003/283 ,  G01J2003/323 ,  G02B5/201 ,  G02B5/208 ,  H01L27/14625 ,  H04N9/045

Abstract: In accordance with an example embodiment a method, apparatus and computer program product are provided. The method comprises filtering incident light by an IR cut-off filter to generate filtered light. The IR cut-off filter comprises a plurality of pixels with pass-band characteristics for visible light wavelengths and is configured to perform stop-band attenuation of near infrared (NIR) wavelengths. The stop-band attenuation is configured to vary based on spatial location of pixels within the IR cut-off filter. The filtered light received from the IR cut-off filter is sensed by the image sensor to generate sensed light. A baseband signal and a modulated NIR signal are determined by performing transformation of the sensed light. A NIR spectrum associated with the incident light is determined by demodulating the modulated NIR signal. A visible spectrum associated with the incident light is determined based on the NIR spectrum and the baseband signal.

Abstract translation: 根据示例实施例，提供了一种方法，装置和计算机程序产品。 该方法包括通过IR截止滤波器对入射光进行滤波以产生滤光。 IR截止滤波器包括具有可见光波长的通带特性的多个像素，并被配置为执行近红外（NIR）波长的阻带衰减。 阻带衰减被配置为基于IR截止滤波器内的像素的空间位置而变化。 从IR截止滤波器接收到的滤波光被图像传感器感测以产生感测光。 通过执行感测光的变换来确定基带信号和调制的NIR信号。 通过解调调制的NIR信号来确定与入射光相关联的近红外光谱。 基于NIR光谱和基带信号确定与入射光相关的可见光谱。

公开(公告)号：US20150060645A1

公开(公告)日：2015-03-05

申请号：US14466119

申请日：2014-08-22

Applicant: Nokia Corporation

Inventor： Ravi Shenoy ,  Krishna Annasagar Govindarao ,  Mithun Uliyar ,  Veldandi Muninder

IPC: G01J3/28 ,  H01L27/146

CPC classification number: G01J3/2823 ,  G01J3/0213 ,  G01J3/32 ,  G01J2003/283 ,  G01J2003/323 ,  G02B5/201 ,  G02B5/208 ,  H01L27/14625 ,  H04N9/045

Abstract: In accordance with an example embodiment a method, apparatus and computer program product are provided. The method comprises filtering incident light by an IR cut-off filter to generate filtered light. The IR cut-off filter comprises a plurality of pixels with pass-band characteristics for visible light wavelengths and is configured to perform stop-band attenuation of near infrared (NIR) wavelengths. The stop-band attenuation is configured to vary based on spatial location of pixels within the IR cut-off filter. The filtered light received from the IR cut-off filter is sensed by the image sensor to generate sensed light. A baseband signal and a modulated NIR signal are determined by performing transformation of the sensed light. A NIR spectrum associated with the incident light is determined by demodulating the modulated NIR signal. A visible spectrum associated with the incident light is determined based on the NIR spectrum and the baseband signal.

Abstract translation: 根据示例实施例，提供了一种方法，装置和计算机程序产品。 该方法包括通过IR截止滤波器对入射光进行滤波以产生滤光。 IR截止滤波器包括具有可见光波长的通带特性的多个像素，并被配置为执行近红外（NIR）波长的阻带衰减。 阻带衰减被配置为基于IR截止滤波器内的像素的空间位置而变化。 从IR截止滤波器接收到的滤波光被图像传感器感测以产生感测光。 通过执行感测光的变换来确定基带信号和调制的NIR信号。 通过解调调制的NIR信号来确定与入射光相关联的近红外光谱。 基于NIR光谱和基带信号确定与入射光相关的可见光谱。

公开(公告)号：US5022755A

公开(公告)日：1991-06-11

申请号：US349200

申请日：1989-05-09

Applicant: Gregory J. Wells ,  Barbara A. Bolton

Inventor： Gregory J. Wells ,  Barbara A. Bolton

IPC: G01N21/73 ,  G01J3/32 ,  G01N21/27 ,  G01N30/74

CPC classification number: G01J3/32 ,  G01J2003/323

Abstract: In a spectrophotometer having photodetectors positioned at fixed wavelengths, the photodetector is divided into three subdetectors, a main subdetector on the wavelength of interest and two background subdetectors located on each side of the main subdetector, the background subdetectors together having area equal to that of the main subdetector, the background subdetectors being connected in polarity reverse that of the main subdetector to correct for changes in background radiation.

公开(公告)号：EP0396507B1

公开(公告)日：1995-03-29

申请号：EP90810334.4

申请日：1990-05-01

Applicant: CARL ZEISS JENA GmbH

Inventor： Gärtner, Wolfgang, ,  Schiek, Oswald

IPC: G01J3/12 ,  G01J3/28

CPC classification number: G01J3/04 ,  G01J2003/047 ,  G01J2003/323

公开(公告)号：EP0397469A2

公开(公告)日：1990-11-14

申请号：EP90304989.8

申请日：1990-05-09

Applicant: VARIAN ASSOCIATES, INC.

Inventor： Wells, Gregory James ,  Bolton, Barbara Ann

IPC: G01N21/73 ,  G01N30/74

CPC classification number: G01N21/73 ,  G01J3/36 ,  G01J2003/323 ,  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 until the carbon response reaches a preselected threshold value corresponding to the point on the calibration curve where there is a measurable spurious reading.

Abstract translation: 公开了一种校正包括光电检测器阵列的等离子体发射检测器中的背景变化的方法。 在光电检测器阵列中，使用多个传感器来检测来自包括碳的选定元素的离散数量的发射线。 显示出，对于第一级，除了碳检测器以外的检测器处的​​响应与在碳检测器处的​​响应之间存在相关性。 这种相关性的确切程度很大程度上取决于系统中使用的载气中存在的氮的量。 可以产生校准曲线，其允许以感兴趣的频率作为碳信号的幅度的函数进行补偿。 该曲线将取决于载气中氮的含量，每当新的气瓶连接到系统时，可以凭经验确定。 在优选实施例中，直到碳响应达到对应于校准曲线上存在可测量假散读的点的预选阈值为止，才引用校准曲线。

公开(公告)号：EP0397467A1

公开(公告)日：1990-11-14

申请号：EP90304987.2

申请日：1990-05-09

Applicant: VARIAN ASSOCIATES, INC.

Inventor： Wells, Gregory James ,  Bolton, Barbara Ann

IPC: G01J3/42 ,  G01N30/68 ,  H01L27/14

CPC classification number: G01J3/32 ,  G01J2003/323

Abstract: In a spectrophotometer having photodetectors positioned at fixed wavelengths, the photodetector is divided into three subdetectors (41,42,43), a main subdetector (42) on the wavelength of interest and two background subdetectors (41,43) located on each side of the main subdetector (42), the background subdetectors (41,43) together having area equal to that of the main subdetector (42), the background subdetectors (41,43) being connected in polarity reverse that of the main subdetector (42) to correct for changes in background radiation.

Abstract translation: 在具有定位在固定波长的光电检测器的分光光度计中，光电检测器被分为三个子检测器（41,42,43），一个主要子扫描器（42）和两个背景子检测器（41,43） 主子分割器（42），背景子检测器（41,43）一起具有与主子分割器（42）的面积相等的区域，背景子检测器（41,43）与主子分割器（42）的极性相反地连接， 纠正背景辐射的变化。

公开(公告)号：EP0396507A1

公开(公告)日：1990-11-07

申请号：EP90810334.4

申请日：1990-05-01

Applicant: CARL ZEISS JENA GmbH

Inventor： Gärtner, Wolfgang, ,  Schiek, Oswald

IPC: G01J3/12 ,  G01J3/28

CPC classification number: G01J3/04 ,  G01J2003/047 ,  G01J2003/323

Abstract: Zur Erzeugung einer Referenzstrahlung ist dem Aus­trittsspalt (4) mindestens an einer Seite in Beugungsrich­tung ein weiterer Spalt (5) mit fester oder veränderlicher Spaltbreite benachbart. Dadurch wird gewährleistet, dass sich die Intensität der Referenzstrahlung bei Intensitäts­schwankungen des von der Strahlungsquelle (1) ausgehenden Lichtstromes weitgehend linear proportional zur Intensität der Messstrahlung ändert, ohne dass Verluste im Mess-­Strahlenbündel auftreten.

Abstract translation: 为了产生参考辐射，出射狭缝（4）具有在衍射方向的至少一侧上具有固定或可变狭缝宽度的另外的狭缝（5）。 结果，确保从辐射源（1）发出的光束的强度波动下的参考辐射强度与测量辐射的强度呈线性比例变化，而在 测量光束。