公开(公告)号：US11906428B2

公开(公告)日：2024-02-20

申请号：US17548243

申请日：2021-12-10

Applicant: HITACHI HIGH-TECH SCIENCE CORPORATION

Inventor： Kai Maruyama ,  Jun Horigome ,  Hideyuki Sakamoto

IPC: G01N21/64

CPC classification number: G01N21/6456 ,  G01N2021/6463

Abstract: Provided is a spectrofluorophotometer acquiring both a spectrum and a sample image in measurement of fluorescence of a liquid sample.
A spectrofluorophotometer includes a light source, an excitation-side spectroscope that performs spectral dispersion of light of the light source and generates excitation light, a fluorescence-side spectroscope that performs spectral dispersion of fluorescence emitted from a sample irradiated with excitation light into monochromatic light, a sample container installation portion for holding a sample container which receives a liquid sample and is formed of a transparent material, a detector that detects fluorescence emitted from the liquid sample, and an image capturing device that captures a sample image of a sample emitting fluorescence. The sample container installation portion includes a port for allowing excitation light to pass therethrough, a port for allowing fluorescence emitted from a sample to pass therethrough, and a port for allowing the image capturing device to observe a sample.

公开(公告)号：US11927527B2

公开(公告)日：2024-03-12

申请号：US17841124

申请日：2022-06-15

Applicant: HITACHI HIGH-TECH SCIENCE CORPORATION

Inventor： Kai Maruyama ,  Takayuki Wakui

IPC: G01J3/28 ,  G01N21/25 ,  G01N21/33 ,  G01N21/3577 ,  G01N21/359 ,  G01N21/59

CPC classification number: G01N21/255 ,  G01N21/33 ,  G01N21/3577 ,  G01N21/359 ,  G01N21/59 ,  G01N2201/117

Abstract: When a measurement sample whose absorbance greatly changes depending on a wavelength range is measured, measurement with a high S/N ratio and accuracy can be efficiently performed in a short time.
For a plurality of wavelength ranges in wavelength scanning measurement of a measurement sample, based on measurement conditions including one of a plurality of dimming plates (16a to 16e) to be disposed in each wavelength range and a scanning speed of a wavelength to be set in each wavelength range, when wavelength scanning measurement in which the entire measurement wavelength range including all of the plurality of wavelength ranges is scanned at once is performed, a spectrophotometer (100) changes one of the plurality of dimming plates (16a to 16e) and the scanning speed according to the measurement conditions for each wavelength range.

公开(公告)号：US20240011833A1

公开(公告)日：2024-01-11

申请号：US18343129

申请日：2023-06-28

Applicant: HITACHI HIGH-TECH SCIENCE CORPORATION

Inventor： Akihiro Nojima ,  Yusuke Kaga ,  Takuya Kambayashi ,  Jun Horigome ,  Kai Maruyama

IPC: G01J3/44 ,  G01J3/02 ,  G01J3/06

CPC classification number: G01J3/4406 ,  G01J3/027 ,  G01J3/06 ,  G01J3/0264 ,  G01J2003/064 ,  G01J2003/068 ,  G01J2003/2836

Abstract: A spectroscopic analysis system includes: an operation panel configured to receive an input of at least one of an upper limit value of a measurement period of a spectroscopic analysis spectrum or a lower limit value of measurement accuracy as a user setting condition related to measurement of the spectroscopic analysis spectrum of a sample; and a control unit configured to derive a predetermined recommended measurement condition that satisfies the user setting condition and cause a display unit to display the recommended measurement condition, in which the recommended measurement condition is at least one of a wavelength range of light to be used for measurement of the spectroscopic analysis spectrum, a sampling interval of a wavelength of the light, a slit width of a diffraction grating of a spectroscope that disperses the light, or a sweep speed of the wavelength of the light.

公开(公告)号：US11486828B2

公开(公告)日：2022-11-01

申请号：US16813538

申请日：2020-03-09

Applicant: HITACHI HIGH-TECH SCIENCE CORPORATION

Inventor： Jun Horigome ,  Kai Maruyama ,  Koji Kurita ,  Hideyuki Sakamoto ,  Rino Nakajima ,  Naoki Suzuki

IPC: G01N21/64 ,  G01J3/44

Abstract: A fluorescence photometer includes a photometer unit and an optical fiber unit. The photometer unit includes a light source, an excitation-side spectroscope for separating light emitted from the light source to generate excitation light, and a fluorescence-side spectroscope for separating fluorescent light emitted from a sample irradiated with the excitation light to generate monochromatic light. The optical fiber unit guides the excitation light to the sample placed outside the photometer unit and guides the fluorescent light emitted from the sample to the photometer unit and includes an image fiber for capturing an image of the sample, an excitation-side fiber arranged around the image fiber and for guiding the excitation light to the sample, and a fluorescence-side fiber arranged around the image fiber and to guide the fluorescent light emitted from the sample to the photometer unit. The excitation-side fiber and the fluorescence-side fiber are arranged to surround the image fiber.