公开(公告)号：US20240192139A1

公开(公告)日：2024-06-13

申请号：US18285298

申请日：2022-02-09

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Kengo SUZUKI ,  Kenichiro IKEMURA ,  Kazuya IGUCHI

IPC: G01N21/64 ,  G01N21/95

CPC classification number: G01N21/6489 ,  G01N21/6456 ,  G01N21/9505

Abstract: A measurement device includes: an excitation optical system; an illumination optical system, and an image capturing unit. The illumination optical system includes a light transmission member having a central region that has a first color and a peripheral region that has a second color and surrounds the central region, and the excitation optical system and the illumination optical system are optically connected to each other such that in a field of view of the image capturing unit, an irradiation spot of the excitation light on the subject to be measured is included in a central spot region of the illumination light that has passed through the central region and is surrounded by a peripheral spot region of the illumination light that has passed through the peripheral region.

公开(公告)号：US20170284939A1

公开(公告)日：2017-10-05

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 ,  G01J3/4406 ,  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.

公开(公告)号：US20230147189A1

公开(公告)日：2023-05-11

申请号：US18092603

申请日：2023-01-03

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Kazuya IGUCHI ,  Hideki MASUOKA

IPC: G01J3/32

CPC classification number: G01J3/32

Abstract: A spectroscopic measurement apparatus includes an optical system, a photodetector, and an analysis unit. The optical system guides measurement target light from an object to a light receiving surface of the photodetector, and forms a spectral image of the measurement target light on the light receiving. The photodetector includes the light receiving surface on which a plurality of pixels are arranged respectively on a plurality of rows. The photodetector receives the spectral image for a first exposure time by a plurality of pixels in a first region on the light receiving surface, and outputs first spectrum data. The photodetector receives the spectral image for a second exposure time by a plurality of pixels in a second region on the light receiving surface, and outputs second spectrum data. The second exposure time is longer than the first exposure time.

公开(公告)号：US20200271511A1

公开(公告)日：2020-08-27

申请号：US16316100

申请日：2017-05-12

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Kengo SUZUKI ,  Kazuya IGUCHI ,  Yasuyuki TANABE

IPC: G01J1/04 ,  G01J1/16 ,  G01J3/02

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.

公开(公告)号：US20170212047A1

公开(公告)日：2017-07-27

申请号：US15312771

申请日：2015-04-07

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Shigeru EURA ,  Kengo SUZUKI ,  Kenichiro IKEMURA ,  Kazuya IGUCHI

IPC: G01N21/64 ,  G01J3/443

CPC classification number: G01N21/64 ,  G01J3/0254 ,  G01J3/443 ,  G01N2201/12753

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.

公开(公告)号：US20240077360A1

公开(公告)日：2024-03-07

申请号：US18388632

申请日：2023-11-10

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Kazuya IGUCHI ,  Hideki MASUOKA

IPC: G01J3/32

CPC classification number: G01J3/32

Abstract: A spectroscopic measurement apparatus includes an optical system, a photodetector, and an analysis unit. The optical system guides measurement target light from an object to a light receiving surface of the photodetector, and forms a spectral image of the measurement target light on the light receiving. The photodetector includes the light receiving surface on which a plurality of pixels are arranged respectively on a plurality of rows. The photodetector receives the spectral image for a first exposure time by a plurality of pixels in a first region on the light receiving surface, and outputs first spectrum data. The photodetector receives the spectral image for a second exposure time by a plurality of pixels in a second region on the light receiving surface, and outputs second spectrum data. The second exposure time is longer than the first exposure time.

公开(公告)号：US20200340862A1

公开(公告)日：2020-10-29

申请号：US16963039

申请日：2018-10-10

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Kengo SUZUKI ,  Shigeru EURA ,  Kazuya IGUCHI

IPC: G01J3/443

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.

公开(公告)号：US20140097357A1

公开(公告)日：2014-04-10

申请号：US14069567

申请日：2013-11-01

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Kazuya IGUCHI

IPC: G01N21/64

CPC classification number: G01N21/645 ,  G01N2201/065

Abstract: A quantum-yield measurement device 1 comprises a dark box 5; a light generation unit, having a light exit part 7, for generating the pumping light L1; a light detection unit, having a light entrance part 11, for detecting light to be measured L2; an integrating sphere 14, having a light entrance opening 15 for the light L1 to enter and a light exit opening 16 for the light L2 to exit; and a movement mechanism 30 for moving the sphere 14 within the box 5 such that a container 3 attains each of a first state of being located inside of the sphere 14 and a second state of being located outside of the sphere 14 and, causing the opening 15 and opening 16 to oppose the part 7 and part 11, respectively, in the first state.

Abstract translation: 量子产量测量装置1包括暗箱5; 光产生单元，具有用于产生泵浦光L1的光出射部分7; 光检测单元，具有用于检测被测光L2的光入射部11; 积分球14具有用于光L1进入的光入射口15和光L2出射的光出射口16; 以及移动机构30，用于使箱体5内的球体14移动，使得容器3达到位于球体14内部的第一状态和位于球体14外侧的第二状态，并且使开口 15和开口16分别与第一状态下的部分7和部分11相对。

公开(公告)号：US20240183795A1

公开(公告)日：2024-06-06

申请号：US18285281

申请日：2022-02-18

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Kenichiro IKEMURA ,  Kengo SUZUKI ,  Kazuya IGUCHI ,  Akihiro NAKAMURA

IPC: G01N21/95

CPC classification number: G01N21/9505 ,  G01N2201/065

Abstract: A measuring device includes: an integrating sphere; an excitation optical system; a light detector; and a first detection optical system. The optical axis of the excitation light incident on the subject to be measured in the integrating sphere in the excitation optical system and the optical axis of the light to be measured that is emitted from the integrating sphere in the first detection optical system obliquely intersect with each other, the first detection optical system has an opening portion that limits a detection range of the light to be measured in the light detector, and an irradiation spot of the excitation light on the subject to be measured and the opening portion are in an optically conjugate relationship.

公开(公告)号：US20220082439A1

公开(公告)日：2022-03-17

申请号：US17423948

申请日：2019-12-20

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Kazuya IGUCHI ,  Hideki MASUOKA

IPC: G01J3/32

Abstract: A spectroscopic measurement apparatus includes an optical system, a photodetector, and an analysis unit. The optical system guides measurement target light from an object to a light receiving surface of the photodetector, and forms a spectral image of the measurement target light on the light receiving. The photodetector includes the light receiving surface on which a plurality of pixels are arranged respectively on a plurality of rows. The photodetector receives the spectral image for a first exposure time by a plurality of pixels in a first region on the light receiving surface, and outputs first spectrum data. The photodetector receives the spectral image for a second exposure time by a plurality of pixels in a second region on the light receiving surface, and outputs second spectrum data. The second exposure time is longer than the first exposure time.