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公开(公告)号：US11346720B2
公开(公告)日：2022-05-31
申请号：US16963039
申请日：2018-10-10
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Kengo Suzuki , Shigeru Eura , Kazuya Iguchi
Abstract: In a spectrometry device, a control unit controls a light source so that input of excitation light to an internal space is maintained in a first period, and that the input of the excitation light to the internal space is stopped in a second period, and the analysis unit calculates the photoluminescence quantum yield of a long afterglow emission material on the basis of the number of absorbed photons of the long afterglow emission material obtained on the basis of excitation light spectral data in the first period and the number of light emission photons of the long afterglow emission material obtained on the basis of light emission spectral data in any of the first period, the second period, and a total period of the first period and the second period.
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公开(公告)号：US10222332B2
公开(公告)日：2019-03-05
申请号：US16005238
申请日：2018-06-11
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Kengo Suzuki , Kazuya Iguchi
Abstract: A spectroscopic measurement apparatus includes a light source, an integrator, a spectroscopic detector, and an analysis unit. The integrator includes an internal space in which a measurement object is disposed, a light input portion for inputting light to the internal space, a light output portion for outputting light from the internal space, a sample attachment portion for attaching the measurement object, and a filter attachment portion for attaching a filter unit. The filter unit has a transmission spectrum in which an attenuation rate for excitation light is larger than an attenuation rate for up-conversion light, and attenuates the light output from the light output portion. The analysis unit analyzes luminous efficiency of the measurement object on the basis of the transmission spectrum data and the spectroscopic spectrum data acquired by the spectroscopic detector.
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公开(公告)号：US10209189B2
公开(公告)日：2019-02-19
申请号：US14764703
申请日：2013-09-17
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Kengo Suzuki , Kazuya Iguchi , Shigeru Eura , Kenichiro Ikemura
Abstract: A spectral measurement apparatus for irradiating a sample as a measurement object with excitation light and detecting light to be measured includes a light source generating the excitation light; an integrator having an input opening portion through which the excitation light is input, and an output opening portion from which the light to be measured is output; a housing portion arranged in the integrator and housing the sample; an incidence optical system making the excitation light incident to the sample; a photodetector detecting the light to be measured output from the output opening portion; and an analysis device calculating a quantum yield of the sample, based on a detection value detected by the photodetector, and the excitation light is applied to the sample so as to include the sample.
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公开(公告)号：US10036706B2
公开(公告)日：2018-07-31
申请号：US15531875
申请日：2015-11-19
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Kengo Suzuki , Kazuya Iguchi
IPC: G01N21/64
CPC classification number: G01N21/645 , G01J3/0254 , G01J3/28 , G01J3/4406 , G01J2003/1213 , G01J2003/1217 , G01N21/636 , G01N2021/6417 , G01N2021/6469 , G01N2021/6471 , G01N2021/6484 , G01N2201/065 , G01N2201/08
Abstract: A spectroscopic measurement apparatus includes a light source, an integrator, a spectroscopic detector, and an analysis unit. The integrator includes an internal space in which a measurement object is disposed, a light input portion for inputting light to the internal space, a light output portion for outputting light from the internal space, a sample attachment portion for attaching the measurement object, and a filter attachment portion for attaching a filter unit. The filter unit has a transmission spectrum in which an attenuation rate for excitation light is larger than an attenuation rate for up-conversion light, and attenuates the light output from the light output portion. The analysis unit analyzes luminous efficiency of the measurement object on the basis of the transmission spectrum data and the spectroscopic spectrum data acquired by the spectroscopic detector.
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Patent Agency Ranking
公开(公告)号：US11703389B2
公开(公告)日：2023-07-18
申请号：US16963064
申请日：2018-10-10
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Kengo Suzuki , Shigeru Eura , Kazuya Iguchi
Abstract: A spectrometry device includes a light source, an integrator configured to have an internal space in which a long afterglow emission material is disposed and output detection light from the internal space, a spectroscopic detector, an analysis unit configured to analyze a photoluminescence quantum yield of the long afterglow emission material, and a control unit configured to control switching between presence and absence of input of excitation light to the internal space and an exposure time in the spectroscopic detector. The control unit controls the light source so that the input of the excitation light to the internal space is maintained in a first period and the input of the excitation light to the internal space is stopped in a second period, and controls the spectroscopic detector so that an exposure time in the second period becomes longer than an exposure time in the first period.
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公开(公告)号：US10094779B2
公开(公告)日：2018-10-09
申请号：US15312771
申请日：2015-04-07
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Shigeru Eura , Kengo Suzuki , Kenichiro Ikemura , Kazuya Iguchi
Abstract: An optical measurement device inputs excitation light to an integrating sphere in which a sample is disposed, irradiates the sample with the excitation light having a predetermined beam cross-section, detects measurement light output from the integrating sphere by a photodetector, and acquires intensity data of the sample. The optical measurement device includes a storage unit in which correction data is stored and an optical characteristic calculation unit for calculating optical characteristics of the sample based on the intensity data of the sample and the correction data. The correction data is calculated based on first corrective intensity data and second corrective intensity data. The predetermined beam cross-section is covered with the first light absorbing member and covers the second light absorbing member.
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公开(公告)号：US09423339B2
公开(公告)日：2016-08-23
申请号：US14764805
申请日：2013-09-17
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Shigeru Eura , Kengo Suzuki , Kenichiro Ikemura , Kazuya Iguchi
CPC classification number: G01N21/31 , G01J3/0254 , G01J3/0291 , G01J3/42 , G01J3/4406 , G01N21/645 , G01N21/6489 , G01N2021/6469 , G01N2021/6482 , G01N2021/6491 , G01N2201/062 , G01N2201/065 , G01N2201/12
Abstract: A spectral measurement apparatus includes a light source for generating a excitation light; an integrator having an input opening portion and an output opening portion; a housing portion arranged in the integrator and for housing a sample; an incidence optical system for making the excitation light incident to the sample; a photodetector for detecting a light to be measured output from the output opening portion; and an analysis means for calculating a light absorptance of the sample, based on a detection value detected by the photodetector, and an irradiation area with the excitation light at a position of incidence to the sample is set larger than an irradiated area of the sample, and the analysis means performs an area ratio correction regarding the irradiation area with the excitation light and the irradiated area of the sample, with respect to the light absorptance calculated.
Abstract translation: 光谱测量装置包括用于产生激发光的光源; 积分器，具有输入开口部分和输出开口部分; 布置在所述积分器中并用于容纳样品的壳体部分; 用于使激发光入射到样品的入射光学系统; 用于检测从所述输出开口部分输出的待测光的光电检测器; 以及分析装置，用于基于由所述光电检测器检测的检测值来计算样品的光吸收率，并且将入射到所述样品的位置处的激发光的照射面积设定为大于所述样品的照射面积， 并且分析装置相对于计算的光吸收率执行关于具有激发光的照射区域和样品的照射面积的面积比率校正。
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公开(公告)号：US10928246B2
公开(公告)日：2021-02-23
申请号：US16316100
申请日：2017-05-12
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Kengo Suzuki , Kazuya Iguchi , Yasuyuki Tanabe
Abstract: An optical measuring device includes an integrator formed with an incident opening on which excitation light is to be incident and an exit opening from which measurement light is to exit, a light guide unit for guiding the measurement light that exits from the exit opening, and a light detecting unit for detecting the measurement light guided by the light guide unit. The light guide unit includes a plurality of light guide members arranged so that incident end surfaces of the light guide members face the inside of the integrator through the exit opening. The light detecting unit detects the measurement light that is guided by at least one of the plurality of light guide members. Light-receiving regions of the plurality of light guide members on the incident end surface side overlap with each other in the integrator.
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公开(公告)号：US09952101B2
公开(公告)日：2018-04-24
申请号：US15531772
申请日：2015-11-19
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Kengo Suzuki , Kazuya Iguchi
CPC classification number: G01J3/36 , G01J3/0254 , G01J3/4406 , G01N21/64 , G01N21/645 , G01N2021/6421 , G01N2021/6469 , G01N2021/6484 , G01N2201/065
Abstract: A spectroscopic measurement apparatus includes a light source, an integrator, a first spectroscopic detector, a second spectroscopic detector, and an analysis unit. The integrator includes an internal space in which a measurement object is disposed, a light input portion for inputting light to the internal space, a light output portion for outputting light from the internal space, and a sample attachment portion for attaching the measurement object. The first spectroscopic detector receives the light output from the integrator, disperses the light of a first wavelength region, and acquires first spectrum data. The second spectroscopic detector receives the light output from the integrator, disperses the light of a second wavelength region, and acquires second spectrum data. The first wavelength region and the second wavelength region include a wavelength region partially overlapping each other.
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