公开(公告)号：US20240230524A1

公开(公告)日：2024-07-11

申请号：US18558169

申请日：2022-03-07

Applicant: SHIMADZU CORPORATION

Inventor： Takahiro TAMAKI

IPC: G01N21/31 ,  G01J3/42 ,  G01N21/25

CPC classification number: G01N21/31 ,  G01J3/42 ,  G01N21/255 ,  G01N2021/3125

Abstract: A measurement light source is arranged on a rear surface side of a surface at a sample position irradiated with light by an irradiation light source and a detector is arranged on a front surface side of the surface at the sample position irradiated with light by the irradiation light source. A radiation intensity calculator calculates a radiation intensity at each wavelength of irradiation light from the irradiation light source based on a first detected intensity distribution, a second detected intensity distribution, and radiation characteristics of a standard light source. An irradiated photon number calculator calculates the number of irradiated photons at each wavelength of irradiation light from the irradiation light source based on the radiation intensity at each wavelength.

公开(公告)号：US20250052613A1

公开(公告)日：2025-02-13

申请号：US18718017

申请日：2022-06-03

Applicant: SHIMADZU CORPORATION

Inventor： Takahiro TAMAKI

IPC: G01J3/30 ,  G01J3/02 ,  G01J3/10 ,  G01J3/42

Abstract: A spectrophotometer includes: a light source configured to emit light in a wavelength band including an excitation wavelength which causes a photoreaction on a target substance in a sample, the light source emitting a known number of photons of the light having the excitation wavelength; an integrating sphere having a light entrance port through which light emitted from the light source enters and a light emission port provided at a position deviated from an optical axis of the light entering the light entrance port; a sample placement unit provided in the light entrance port; and a light intensity measurement unit configured to measure intensity of light having the excitation wavelength emitted from the light emission port.

公开(公告)号：US20230082052A1

公开(公告)日：2023-03-16

申请号：US17792572

申请日：2020-09-28

Applicant: SHIMADZU CORPORATION

Inventor： Yasuyuki WATANABE ,  Takahiro TAMAKI

IPC: G01N21/31 ,  G01N21/64 ,  G01N21/25

Abstract: An intensity distribution acquirer acquires a first detected intensity distribution detected by a detector with a sample position at which a sample is not present irradiated with light by a standard light source, and acquires a second detected intensity distribution detected by the detector with the sample position at which a sample is not present irradiated with light by an irradiation light source during a first measuring work. An irradiation intensity calculator calculates a radiation intensity at each wavelength of irradiation light of the irradiation light source based on the first detected intensity distribution, the second detected intensity distribution and radiation characteristics of the standard light source. An irradiation photon count calculator calculates an irradiation photon count at each wavelength of irradiation light of the irradiation light source based on an irradiation intensity at each wavelength.