公开(公告)号：US20050128475A1

公开(公告)日：2005-06-16

申请号：US10841189

申请日：2004-05-06

Applicant: Kenji Imura

Inventor： Kenji Imura

IPC: G01J3/02 ,  G01J1/04 ,  G01J1/08 ,  G01J1/16 ,  G01J1/42 ,  G01J1/44 ,  G01J3/18 ,  G01J3/28 ,  G01N21/27 ,  G01N21/31 ,  G01J3/00

CPC classification number: G01N21/274 ,  G01J1/08 ,  G01J1/1626 ,  G01J1/4228 ,  G01J2001/0481 ,  G01J2003/2866 ,  G01N21/31 ,  G01N2201/0623 ,  G01N2201/127 ,  G01N2201/12723

Abstract: A correction LED is provided to illuminate a light receiving sensor array, and a calculation controlling circuit calculates correction values at the respective illuminance levels based on sensor output levels expected at the respective illuminance levels and actual sensor output levels while successively turning the correction LED on at a plurality of illuminance levels whose illuminance ratios are at least known, and corrects a sensor output level by the corresponding correction value to obtain a measurement output at the time of an actual measurement. The discontinuity of an input/output characteristic resulting from the switching of gains of an amplifier for amplifying a photocurrent and the non-linearity caused by the saturation of the photoelectrically converting characteristic of the optical sensor and the exponential characteristics of the optical sensor and the amplifier can be corrected without employing a large-scale construction such as a bench. The non-linearity can be highly precisely and efficiently corrected in a measuring apparatus realized as a spectral luminometer or a spectral calorimeter without requiring a special facility.

Abstract translation: 提供校正LED以照明光接收传感器阵列，并且计算控制电路基于在各个照度水平和实际传感器输出电平处预期的传感器输出电平来计算各照度水平下的校正值，同时依次将校正LED接通 其照度比至少为已知的多个照度水平，并且通过相应的校正值校正传感器输出电平，以获得实际测量时的测量输出。 由用于放大光电流的放大器的增益切换引起的输入/输出特性的不连续性以及由光学传感器的光电转换特性的饱和引起的非线性以及光学传感器和放大器的指数特性 可以在不使用诸如台架的大规模构造的情况下进行校正。 在实现为光谱发光计或光谱量热计的测量装置中，不需要特殊设备，可以高精度和有效地校正非线性。

公开(公告)号：US06903824B2

公开(公告)日：2005-06-07

申请号：US10327392

申请日：2002-12-20

Applicant: Francisco J. Duarte ,  Brian A. Reed ,  Chris J. Burak

Inventor： Francisco J. Duarte ,  Brian A. Reed ,  Chris J. Burak

IPC: G01J1/08 ,  H01S3/00 ,  G01N21/00

CPC classification number: G01J1/08 ,  H01S3/005

Abstract: An optical apparatus. More particularly, a laser sensitometer. The apparatus comprises: a polarized light source adapted to provide a Gaussian beam of light directed along an optical axis; a rotatable polarizer disposed in the optical axis adapted to vary an intensity of the beam of light, the polarizer being rotatable about the optical axis; and a rotatable polygon disposed in the optical axis, the polygon being rotatable about an axis perpendicular to the optical axis.

Abstract translation: 光学装置。 更具体地，激光感光度计。 该装置包括：偏振光源，适于提供沿光轴指向的高斯光束; 设置在所述光轴中的可旋转偏振器适于改变所述光束的强度，所述偏振器可围绕所述光轴旋转; 以及设置在所述光轴上的可旋转多边形，所述多边形可绕垂直于所述光轴的轴旋转。

公开(公告)号：US6016192A

公开(公告)日：2000-01-18

申请号：US992636

申请日：1997-12-18

Applicant: Walter W. Taylor

Inventor： Walter W. Taylor

IPC: G01J1/08 ,  G01J5/00 ,  H01J43/30 ,  G01J1/10 ,  G01J1/12

CPC classification number: G01J1/08 ,  H01J43/30 ,  G01J2005/0048

Abstract: An external calibration system for a photo multiplier tube is described. The calibration system uses a light emitting diode and a photo cell wherein the diode is domed shaped. The light sensitive face of the photo multiplier tube is contained in the plane disposed at an acute angle to the longitudinal axis of the light emitting diode, and the photo cell is mounted substantially perpendicular to the longitudinal axis. A source of electrical energy then illuminates the light emitting diode over a range from, for example, 0 to 5 volts to generate light of known intensity and the light being generated is simultaneously measured by the photo cell and the light sensitive face of the photo multiplier tube. A feedback circuit is provided and associated circuitry so that a number of readings can be taken over a wide variety of light intensities to generate a calibration for the photo multiplier tube.

Abstract translation: 描述了用于光电倍增管的外部校准系统。 校准系统使用发光二极管和光电池，其中二极管是圆顶形的。 光电倍增管的光敏面包含在与发光二极管的纵向轴线成锐角设置的平面中，并且光电池基本上垂直于纵向轴线安装。 然后，电能源在例如0至5伏的范围内照射发光二极管，以产生已知强度的光，并且由光电池和光电倍增管的光敏面同时测量所产生的光 管。 提供反馈电路和相关联的电路，使得可以在多种光强度下进行多个读数以产生用于光电倍增管的校准。

公开(公告)号：US5742066A

公开(公告)日：1998-04-21

申请号：US598434

申请日：1996-02-08

Applicant: Richard C. Cavestri

Inventor： Richard C. Cavestri

IPC: G01J1/08 ,  G01J3/10 ,  G01J3/44 ,  G01J1/00

CPC classification number: G01J3/4406 ,  G01J1/08 ,  G01J3/10

Abstract: A light source for use in examining leak detection sites in heating, ventilating, and air conditioning systems that utilize a fluorescence-producing dye in the refrigerant to determine the presence of leaks. The light source combines a dichroic reflector with a lamp and interference filter to provide a narrowed emission of wavelength of light emitted from the light source.

Abstract translation: 用于检查加热，通风和空调系统中的泄漏检测位置的光源，其利用制冷剂中产生荧光的染料来确定泄漏的存在。 光源将二向色反射器与灯和干涉滤光器组合以提供从光源发射的光的波长的变窄的发射。

公开(公告)号：US5506680A

公开(公告)日：1996-04-09

申请号：US381573

申请日：1995-01-26

Applicant: Mark L. DeLong ,  Jack H. Parker ,  Elizabeth A. Beecher ,  Scott A. Milligan

Inventor： Mark L. DeLong ,  Jack H. Parker ,  Elizabeth A. Beecher ,  Scott A. Milligan

IPC: G01J1/08 ,  G01B11/30 ,  G01N17/00

CPC classification number: G01J1/08

Abstract: A liquid mercury optical scintillator for simulating atmospheric laser scintillation effects is described which comprises a partially bounded mercury pool, a transducer operatively connected to the the pool for coupling vibrational energy to the surface of the pool, and a detector for measuring spatial irradiance variations in a laser beam reflected from the vibrating mercury surface which variations correspond to probability distributions matching atmospheric In-normal statistics.

Abstract translation: 描述了一种用于模拟大气激光闪烁效应的液态水银光学闪烁体，其包括部分有界的汞池，可操作地连接到池的换能器，用于将振动能量耦合到池的表面;以及检测器，用于测量 从振动水银表面反射的激光束的变化对应于与大气正常统计量匹配的概率分布。

公开(公告)号：US5424798A

公开(公告)日：1995-06-13

申请号：US206223

申请日：1994-03-07

Applicant: Tadao Takagi

Inventor： Tadao Takagi

IPC: G03B15/05 ,  G01J1/08 ,  G01J1/42 ,  H05B41/32 ,  G03B15/03

CPC classification number: G01J1/08 ,  G01J1/42 ,  G03B15/03 ,  G03B19/12 ,  H04N5/2354 ,  H04N9/735 ,  H05B33/0872

Abstract: A color temperature adjusting device for an auxiliary light source comprises a color temperature metering device for measuring a color temperature of an object field and a color temperature adjuster for adjusting a color temperature of the auxiliary light source in accordance with the color temperature measured by the color temperature metering device.

Abstract translation: 用于辅助光源的色温调节装置包括用于测量物场的色温的色温计量装置和用于根据颜色测量的色温来调节辅助光源的色温的色温调节器 温度计量装置。

公开(公告)号：US5400116A

公开(公告)日：1995-03-21

申请号：US147230

申请日：1993-11-03

Applicant: Howard P. Jehan ,  Gary A. Granath ,  Mark R. O'Donnell ,  James E. Bird

Inventor： Howard P. Jehan ,  Gary A. Granath ,  Mark R. O'Donnell ,  James E. Bird

IPC: G01J1/08 ,  G03C5/02 ,  G03B27/72

CPC classification number: G01J1/08 ,  G03C5/02

Abstract: A method and apparatus (10) referred to as a step and repeat sensitometer directs radiant energy (18) from a radiant energy source (16) into a diffuse integrating chamber (2) which uniformly mixes and directs the radiant energy (18) onto an exposure plane (14) where a radiation sensitive sample (1) is positioned so that individual areas of the sample (1) are exposed to readily adjustable levels of illuminance producing gradated exposures.

Abstract translation: 被称为步骤的方法和装置（10）和重复感光度计将辐射能量（18）从辐射能量源（16）引导到扩散积分室（2）中，其将辐射能量（18）均匀地混合并引导到 曝光平面（14），其中定位辐射敏感样品（1），使得样品（1）的各个区域暴露于容易调节的照度水平，产生分级曝光。

公开(公告)号：US5321261A

公开(公告)日：1994-06-14

申请号：US943398

申请日：1992-09-10

Applicant: Robert J. Valenta

Inventor： Robert J. Valenta

IPC: G01J1/08 ,  G01J1/18 ,  G01N21/76 ,  G01T1/40 ,  G01T7/00

CPC classification number: G01T1/40 ,  G01J1/08 ,  G01J1/18 ,  G01N21/76 ,  G01T7/00

Abstract: A normalization system for multi-photodetector single photon counting luminescent measuring systems and a standard for use in the same. The method comprises calculating one or more counting ratios for each photodetector in the single photon counting system and multiplying counts of unknown samples by the inverse of the appropriate counting ratio. A counting ratio for a particular photodetector is calculated by dividing the count of a standard measured by the photodetector by the count of the same standard measured by a reference photodetector. The particular standard developed employs calcium tungstate:lead as a scintillator and tritium or carbon-14 thymidine as a means of exciting the scintillator. This standard has the advantages of providing a good model of typical luminescence chemistry and producing an emission pattern which is susceptible to single photon counting.

Abstract translation: 用于多光电探测器单光子计数发光测量系统的标准化系统及其使用的标准。 该方法包括计算单个光子计数系统中每个光电探测器的一个或多个计数比，并将未知样本的计数乘以适当计数比的倒数。 通过将由光电检测器测量的标准的计数除以由参考光电检测器测量的相同标准的计数来计算特定光电检测器的计数比。 开发的特定标准是使用钨酸钙：铅作为闪烁体，氚或碳-14胸苷作为激发闪烁体的手段。 该标准具有提供典型发光化学的良好模型并产生易受单光子计数影响的发射图案的优点。

公开(公告)号：US5262635A

公开(公告)日：1993-11-16

申请号：US882184

申请日：1992-05-12

Applicant: Raul Curbelo

Inventor： Raul Curbelo

IPC: G01J3/45 ,  G01J1/08 ,  G01J3/453 ,  G01N21/27 ,  H01J40/14 ,  H01J43/30 ,  H03G11/08

CPC classification number: G01N21/274 ,  G01J2001/086 ,  G01J3/453

Abstract: A technique that corrects photodetector non-linearity without increasing the noise level in the detector signal. The detector is coupled to a preamplifier characterized by the absence of positive feedback, and the preamplifier signal is communicated to a linear amplifier whose output signal is then digitized. The digitized signal is then transformed according to stored calibration information that is representative of the non-linear characteristic of the photodetector. The transformed digitized value thus exhibits a linear characteristic as a function of the intensity of the light source. A number of embodiments perform the correction in hardware before digitizing the signal.

Abstract translation: 一种在不增加检测器信号中的噪声电平的情况下校正光电探测器非线性的技术。 检测器耦合到前置放大器，其特征在于不存在正反馈，并且前置放大器信号被传送到线性放大器，其输出信号然后被数字化。 然后，根据存储的代表光电检测器的非线性特征的校准信息来变换数字化信号。 因此，经变换的数字化值表现出作为光源的强度的函数的线性特性。 许多实施例在数字化信号之前执行硬件校正。

公开(公告)号：US5004904A

公开(公告)日：1991-04-02

申请号：US365385

申请日：1989-06-13

Applicant: Tsutomu Yamakawa ,  Hiroaki Kobayashi

Inventor： Tsutomu Yamakawa ,  Hiroaki Kobayashi

IPC: G01J1/08 ,  G01J1/18 ,  G01J1/44 ,  G01T1/208

CPC classification number: G01T1/208 ,  G01J1/18 ,  G01J2001/086 ,  G01J2001/4406 ,  G01J2001/4453

Abstract: A measurement of standard light is performed during radiation measurement for gain correction and offset correction of radiation measurement apparatus. The standard light emitted by a LED falls on a PMT. An output signal of a preamplifier corresponding to the PMT is entered into a system controller after being subjected to predetermined analog signal processing. The system controller calculates a gain correction value and an offset correction value on the basis of initial correction values and an output value of the preamplifier, whereby gain control and offset control can be performed stably even in radiation measurement.