-
公开(公告)号：CN107806898A
公开(公告)日：2018-03-16
申请号：CN201710807755.6
申请日：2017-09-08
Applicant: 大塚电子株式会社
CPC classification number: G01J3/027 , G01J3/0218 , G01J3/0221 , G01J3/0264 , G01J3/28 , G01J3/2803 , G01J2003/2876 , G01N21/274 , G01N21/359 , G01D21/02 , G01D3/036
Abstract: 本发明提供一种使用至少在近红外区域具有检测灵敏度的检测器的光学测定方法。光学测定方法包含：获取在任意的曝光时间通过检测器来对任意的样本光进行测定后的输出值的步骤；以及如果获取到输出值时的曝光时间处于第二范围内则以与输出值对应的校正量来校正输出值的步骤。校正量包含如下的系数与曝光时间的平方之积，该系数为：表示在第二范围内的曝光时间通过检测器进行测定后得到的输出值相对于在第一范围内的曝光时间通过检测器进行测定后得到的输出线性偏差了多大程度的系数。
-
公开(公告)号：US4652761A
公开(公告)日：1987-03-24
申请号：US677950
申请日：1984-12-04
Applicant: James B. Kerr , Charles T. McElroy , David I. Wardle
Inventor： James B. Kerr , Charles T. McElroy , David I. Wardle
CPC classification number: G01J3/32 , G01J2003/063 , G01J2003/2866 , G01J2003/2876 , G01J2003/326 , G01J3/0202 , G01J3/0229 , G01J3/0291 , G01J3/1838
Abstract: A holographic grating spectrophotometer for detecting ozone and sulphur dioxide in the atmosphere is described which provides automatic calibration and which provides automatic linearity correction for the photomultiplier tube. Automatic calibration is provided by using a computer to control a stepper motor to move the grating so that the photomultiplier tube receives maximum intensity at the calibration wavelength of 302.1 nm from a mercury source. Automatic linearity correction is obtained by cycling a wavelength selection mask across exit slits located in the focal plane of the device and firstly combines separately taken counts of two different wavelengths and comparing this sum with the sum of counts of these wavelengths taken simultaneously. The difference is used to calculate photomultiplier tube deadtime and improve accuracy of the results. In a preferred embodiment five wavelengths are used to calculate ozone and sulphur dioxide levels, and a stepper motor driving a cylindrical wavelength selection mask permits exit slits to be exposed to predetermined wavelengths one at a time.
Abstract translation: 描述了用于检测大气中的臭氧和二氧化硫的全息光栅分光光度计，其提供自动校准，并且为光电倍增管提供自动线性校正。 通过使用计算机来控制步进电机来移动光栅来提供自动校准，使得光电倍增管在距离汞源的302.1nm的校准波长处接收最大强度。 通过将波长选择掩模穿过位于器件的焦平面中的出口狭缝来获得自动线性校正，并且首先将分离的两个不同波长的计数组合并将该和与同时采用的这些波长的计数之和进行比较。 差异用于计算光电倍增管死区时间，提高结果精度。 在优选实施例中，使用五个波长来计算臭氧和二氧化硫水平，并且驱动圆柱形波长选择掩模的步进电机允许出口狭缝一次暴露于预定波长。
-
公开(公告)号：EP0420135B1
公开(公告)日：1994-04-06
申请号：EP90118365.7
申请日：1990-09-25
Applicant: NIRSYSTEMS INCORPORATED
Inventor： Norris, Carl
CPC classification number: G01J3/2889 , G01J3/433 , G01J2003/2866 , G01J2003/2876 , G01N21/4738
-
4.发明公开Spectrophotometric instrument with rapid scanning distortion correction 失效Spektrophotometer mit Fehlerkorrektur durch schnelle Abtastung。
公开(公告)号：EP0420135A1
公开(公告)日：1991-04-03
申请号：EP90118365.7
申请日：1990-09-25
Applicant: NIRSYSTEMS INCORPORATED
Inventor： Norris, Carl
CPC classification number: G01J3/2889 , G01J3/433 , G01J2003/2866 , G01J2003/2876 , G01N21/4738
Abstract: In a spectrophotometric instrument, a system is provided to correct for distortion caused by rapid scanning of the spectrum. In the instrument, photodetectors (19) detect light energy which is scanned through a spectrum at a rapid rate. An amplifier (20) amplifies the output signal generated by the photodetectors (19). The output signal of the amplifier (20) is sampled at increments and the samples are converted to digital values. A first derivative is determined from the digital values by subtracting from each value the value from the preceding increment. The first derivative values are multiplied times a constant selected to correct for the distortion and the resulting product values are added to the amplitude digital values to provide a set of corrected values representing the intensity detected by the photodetectors.
Abstract translation: 在分光光度计中，提供了一种系统来校正由于光谱的快速扫描引起的失真。 在仪器中，光电检测器（19）检测以快速扫描频谱的光能。 放大器（20）放大由光检测器（19）产生的输出信号。 放大器（20）的输出信号以增量取样，样本被转换为数字值。 通过从每个值减去前一增量的值，从数字值确定一阶导数。 一阶导数值乘以选定的常数以校正失真，并将所得到的乘积值加到幅度数字值上，以提供一组校正值，这些校正值表示由光电检测器检测到的强度。
-
公开(公告)号：US20180073923A1
公开(公告)日：2018-03-15
申请号：US15677606
申请日：2017-08-15
Applicant: Otsuka Electronics Co., Ltd.
Inventor： Nobuyuki INOUE , Taku NAGASHIMA
IPC: G01J3/02 , G01N21/359
CPC classification number: G01J3/027 , G01J3/0218 , G01J3/0221 , G01J3/0264 , G01J3/28 , G01J3/2803 , G01J2003/2876 , G01N21/274 , G01N21/359
Abstract: There is provided an optical measurement method using a detector having a detection sensitivity to at least a near-infrared region. The optical measurement method including: obtaining an output value by measuring a light sample at any exposure time with the detector; and correcting the output value with an amount of correction corresponding to the output value, when the exposure time at which the output value is obtained is within a second range. The amount of correction includes a product of a coefficient and a square of the exposure time, the coefficient indicating a degree to which an output value obtained when the light sample is measured with the detector at an exposure time within the second range deviates from output linearity obtained when the light sample is measured with the detector at an exposure time within a first range.
-
Patent Agency Ranking
6.发明申请公开(公告)号：US20180058927A1
公开(公告)日：2018-03-01
申请号：US15560493
申请日：2015-03-24
Applicant: Otsuka Electronics Co., Ltd.
Inventor： Hisashi SHIRAIWA , Hiroyuki SANO
CPC classification number: G01J1/44 , G01J1/0295 , G01J1/0407 , G01J1/08 , G01J3/02 , G01J3/0297 , G01J3/10 , G01J3/28 , G01J2001/0481 , G01J2001/083 , G01J2001/086 , G01J2001/444 , G01J2003/2866 , G01J2003/2876
Abstract: A reference light source device for calibration of a spectral radiance meter includes an integrating sphere having a radiance reference plane, which is an opening; and a plurality of first optical ports, which are formed apart from each other in an outer wall of the integrating sphere to allow light rays with equivalent wavelength characteristics to enter an interior of the integrating sphere.
-
7.发明授权
公开(公告)号：US4997280A
公开(公告)日：1991-03-05
申请号：US413063
申请日：1989-09-27
Applicant: Karl Norris
Inventor： Karl Norris
CPC classification number: G01J3/2889 , G01J2003/2866 , G01J2003/2876 , G01J3/433 , G01N21/4738
Abstract: In a spectrophotometric instrument, a system is provided to correct for distortion caused by rapid scanning of the spectrum. In the instrument, photodetectors detect light energy which is scanned through a spectrum at a rapid rate. An amplifier amplifies the output signal generated by the photodetectors. The output signal of the amplifier is sampled at increments and the samples are converted to digital values. A first derivative is determined from the digital values by subtracting from each value the value from the preceding increment. The first derivative values are multiplied times a constant selected to correct for the distortion and the resulting product values are added to the amplitude digital values to provide a set of corrected values representing the intensity detected by the photodetectors.
-
公开(公告)号：WO2018067609A1
公开(公告)日：2018-04-12
申请号：PCT/US2017/054993
申请日：2017-10-03
Applicant: KLA-TENCOR CORPORATION
Inventor： DE VEER, Johannes D. , NEIL, Mark
CPC classification number: G01J3/2803 , G01J3/021 , G01J3/14 , G01J3/18 , G01J2003/2876 , G01N21/31
Abstract: A spectrometer for tailored spectral sampling includes a dispersive element for spatially dispersing a spectrum of a light beam, a detector including a plurality of pixels distributed along a sampling direction, and a spectrum reshaping element including at least one of a reflective surface or a transmissive surface for reshaping the spatially-dispersed spectrum of the light beam from the dispersive element along the sampling direction to provide a selected distribution of the spectrum to the detector. The detector may spatially sample the spectrum of incident light with the plurality of pixels at selected spectral intervals based on the selected distribution of the spectrum.
Abstract translation: 用于定制光谱采样的光谱仪包括用于在空间上分散光束的光谱的色散元件，包括沿采样方向分布的多个像素的检测器以及包括至少一个 反射表面或透射表面，用于沿着采样方向对来自色散元件的光束的空间色散谱进行整形，以向检测器提供选定的光谱分布。 检测器可以基于选择的光谱分布以选定的光谱间隔在空间上采样多个像素的入射光谱。
-
公开(公告)号：WO2016151778A1
公开(公告)日：2016-09-29
申请号：PCT/JP2015/058991
申请日：2015-03-24
Applicant: 大塚電子株式会社
CPC classification number: G01J1/44 , G01J1/0295 , G01J1/0407 , G01J1/08 , G01J3/02 , G01J3/0297 , G01J3/10 , G01J3/28 , G01J2001/0481 , G01J2001/083 , G01J2001/086 , G01J2001/444 , G01J2003/2866 , G01J2003/2876
Abstract: 輝度基準面における輝度ムラを低減する。開口である輝度基準面（１８）を備える積分球（１２）と、前記積分球（１２）の外壁（１２ｂ）に互いに離間して設けられ、前記積分球（１２）の内部に波長特性が同等の光をそれぞれ入射する複数の第１光ポート（１４ａ），（１４ｂ）と、を含む分光輝度計（４０）の校正に用いる基準光源装置（１０）が提供される。前記複数の第１光ポート（１４ａ），（１４ｂ）は、前記積分球（１２）の外壁（１２ｂ）における、前記輝度基準面（１８）の中心からの距離が等しく、前記輝度基準面（１８）の中心を通る前記積分球（１２）の回転対称軸Ｒに対して回転対称性を有する複数位置に設けられてよい。
Abstract translation: 本发明可降低亮度基准面的亮度不均匀性。 提供了一种用于光谱亮度计（40）的校准的参考光源装置（10），其包括设置有作为开口的亮度参考表面（18）和多个第一光学端口（12）的积分球（12） 使得具有等效波长特性的光线进入积分球（12）的内部。 多个第一光学端口（14a，14b）可以设置在与亮度参考表面（18）的中心等距的积分球（12）的外壁（12b）上的多个位置处，并且具有 相对于穿过亮度参考表面（18）的中心的积分球（12）的旋转对称轴R旋转对称。
-
公开(公告)号：JP2018040764A
公开(公告)日：2018-03-15
申请号：JP2016176777
申请日：2016-09-09
Applicant: 大塚電子株式会社
CPC classification number: G01J3/027 , G01J3/0218 , G01J3/0221 , G01J3/0264 , G01J3/28 , G01J3/2803 , G01J2003/2876 , G01N21/274 , G01N21/359
Abstract: 【課題】測定時に要する校正の手間を低減しつつ、出力直線性の精度を高めた光学測定方法および光学測定装置を提供する。 【解決手段】少なくとも近赤外領域に検出感度を有する検出器120を用いた光学測定方法が提供される。光学測定方法は、任意のサンプル光を任意の露光時間xで検出器120により測定したときの出力値Sig−Darkを取得するステップと、出力値を取得したときの露光時間が第2の範囲x>ts内にあれば、出力値に応じた補正量で出力値を補正するステップとを含む。補正量は、第2の範囲内の露光時間で検出器により測定したときに得られる出力値が第1の範囲x≦ts内の露光時間で検出器により測定したときに得られる出力直線性に対してどの程度ずれているのかを示す係数と、露光時間の2乗との積を含む。 【選択図】図8
-
-
-
-
-
-
-
-
-
Search Results
12
records
(took 0.016 seconds)
