公开(公告)号：US12104957B2

公开(公告)日：2024-10-01

申请号：US17620408

申请日：2020-06-25

Applicant: Protea Ltd

Inventor： Chris Daw ,  Robin Hutchinson

IPC: G01J3/427 ,  G01J3/02 ,  G01J3/10 ,  G01J3/12 ,  G01N21/33 ,  G01N21/3504 ,  G01N33/00 ,  G01N21/31

CPC classification number: G01J3/427 ,  G01J3/0218 ,  G01J3/108 ,  G01J3/12 ,  G01N21/33 ,  G01N21/3504 ,  G01N33/0037 ,  G01N33/0042 ,  G01J2003/102 ,  G01J2003/1213 ,  G01N2021/3155 ,  G01N2201/08

Abstract: The invention relates to a photometer (30) for analysing the composition of a sample gas. The photometer comprises an infra-red (IR) source (20) configured to direct a first plurality of pulses (40) of IR radiation through the sample gas to an IR detector (26), at least two of the first plurality of pulses being of different wavelength. The photometer further comprises an ultraviolet (UV) source (32) configured to generate a second plurality of pulses (38) of UV radiation for conveyance to a UV detector (36), at least two of the second plurality of pulses being of different wavelength. A path selection arrangement (22, 42-50) is configured to selectively convey different ones of the second plurality of pulses (38) to one of the sample gas and the UV detector (36). The photometer further comprises processing circuitry coupled to the IR source (20), the UV source (32), the IR detector (26), the UV detector (36) and the path selection arrangement (22, 42-50). The processing circuitry is configured to (i) select the wavelength to be used for a given UV pulse of the second plurality of pulses (38), (ii) receive a plurality of detection signals from each of the IR detector (26) and the UV detector (36) and (iii) based on the detection signals, determine a concentration of at least one component of the sample gas. A method for analysing the composition of a sample gas is also disclosed.

公开(公告)号：US20240068866A1

公开(公告)日：2024-02-29

申请号：US18237594

申请日：2023-08-24

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Tatsuo DOUGAKIUCHI

IPC: G01J3/02 ,  G01J3/427

CPC classification number: G01J3/021 ,  G01J3/0208 ,  G01J3/0289 ,  G01J3/427 ,  G01J2003/423

Abstract: The spectrometer includes: a light source unit emitting a laser beam; a mirror unit including a first plane mirror having a first mirror surface and a second plane mirror having a second mirror surface, wherein a measurement target is introduced between the first mirror surface and the second mirror surface; and a light detector detecting the laser beam returned by multiple reflection between the first mirror surface and the second mirror surface. The first mirror surface and the second mirror surface are arranged non-parallel to each other when viewed from the Z-axis direction so as to form an optical path of the laser beam reciprocating in the Y-axis direction while performing multiple reflection between the first mirror surface and the second mirror surface. The optical path of the laser beam between the first mirror surface and the second mirror surface is inclined with respect to the Z-axis direction.

公开(公告)号：US11668608B2

公开(公告)日：2023-06-06

申请号：US17063816

申请日：2020-10-06

Applicant: Tokyo Electron Limited

Inventor： Tong Wu ,  Kenji Nagai

IPC: G01J3/427 ,  G01K11/125 ,  G01N21/41 ,  G01K7/02 ,  G01N21/71

CPC classification number: G01K7/02 ,  G01J3/427 ,  G01K11/125 ,  G01N21/41 ,  G01N21/71 ,  G01N2201/1211

Abstract: A temperature measurement system configured to measure a temperature of a target object having a first main surface and a second main surface includes a light source unit configured to emit output light penetrating the target object and including a first wavelength range and a second wavelength range; a measurement unit configured to measure a spectrum of reflected light; an optical path length ratio calculator configured to calculate an optical path length ratio between the output light of the first wavelength range and the output light of the second wavelength range; and a temperature calculator configured to calculate the temperature of the target object based on the optical path length ratio and a previously investigated relationship between the temperature of the target object and a refractive index ratio between the output light of the first wavelength range and the output light of the second wavelength range.

公开(公告)号：US20230011975A1

公开(公告)日：2023-01-12

申请号：US17784870

申请日：2020-10-15

Applicant: Foss Analytical A/S

Inventor： Jeppe Sandvik CLAUSEN

IPC: G01J3/427 ,  G01N21/03 ,  G01N21/27

Abstract: A method for determining an optical pathlength through a cuvette of a spectrophotometric apparatus includes obtaining a first single beam spectrum of a liquid zero-material at least in a first energy region in which the liquid zero-material absorbs at least a portion of incident optical radiation; obtaining a second single beam spectrum of a second liquid at least in the first energy region, the second liquid having a composition excluding the liquid zero-material and having no absorption of incident optical radiation in the first energy region; determining a dual beam spectrum of the liquid zero-material relative to the second liquid at least in the first energy region from the first and second single beam spectra; and calculating an optical pathlength through the cuvette based on processing spectral information obtained from the first energy region of the determined dual beam spectrum.

公开(公告)号：US20220341783A1

公开(公告)日：2022-10-27

申请号：US17620408

申请日：2020-06-25

Applicant: Protea Ltd

Inventor： Chris Daw ,  Robin Hutchinson

IPC: G01J3/427 ,  G01J3/10 ,  G01J3/02 ,  G01J3/12 ,  G01N21/33 ,  G01N21/3504 ,  G01N33/00

Abstract: The invention relates to a photometer (30) for analysing the composition of a sample gas. The photometer comprises an infra-red (IR) source (20) configured to direct a first plurality of pulses (40) of IR radiation through the sample gas to an IR detector (26), at least two of the first plurality of pulses being of different wavelength. The photometer further comprises an ultraviolet (UV) source (32) configured to generate a second plurality of pulses (38) of UV radiation for conveyance to a UV detector (36), at least two of the second plurality of pulses being of different wavelength. A path selection arrangement (22, 42-50) is configured to selectively convey different ones of the second plurality of pulses (38) to one of the sample gas and the UV detector (36). The photometer further comprises processing circuitry coupled to the IR source (20), the UV source (32), the IR detector (26), the UV detector (36) and the path selection arrangement (22, 42-50). The processing circuitry is configured to (i) select the wavelength to be used for a given UV pulse of the second plurality of pulses (38), (ii) receive a plurality of detection signals from each of the IR detector (26) and the UV detector (36) and (iii) based on the detection signals, determine a concentration of at least one component of the sample gas. A method for analysing the composition of a sample gas is also disclosed.

公开(公告)号：US20210172866A1

公开(公告)日：2021-06-10

申请号：US17179734

申请日：2021-02-19

Applicant: Regeneron Pharmaceuticals, Inc.

Inventor： Andria SKINNER ,  Natallia KULYBA

IPC: G01N21/31 ,  G01N33/68 ,  G01N30/02 ,  G16C20/30 ,  G01J3/427 ,  G16B5/00 ,  G01N21/27 ,  A61K47/68 ,  B01D15/34 ,  G01N21/33 ,  G01N30/88

Abstract: The present disclosure provides methods of assessing DAR of ADC products that provide advantages over known methods. Specifically, methods of the disclosure can be used in high-throughput applications and/or without having to dilute ADC samples during the assessment.

公开(公告)号：US20210164912A1

公开(公告)日：2021-06-03

申请号：US16772954

申请日：2018-12-05

Applicant: ABB Schweiz AG

Inventor： Michael Ohora

IPC: G01N21/89 ,  G01J3/427 ,  G01N21/3559 ,  G01N21/86

Abstract: A web manufacturing supervision system for monitoring properties of a web being transported in a moving direction during a web manufacturing process, includes: a) a radiation source for illuminating a first spot on the web; b) a tunable first detector for capturing signal radiation emanating from the first spot within a signal wavelength band; the signal wavelength band being adjustable to one of at least a first wavelength band and a second wavelength band; c) a second detector for capturing reference radiation emanating from the first spot within a reference wavelength band; d) control means for alternatingly tuning the signal wavelength band to the first wavelength band and the second wavelength band and measuring the signal at both wavelength bands simultaneously.

公开(公告)号：US10980456B2

公开(公告)日：2021-04-20

申请号：US16312080

申请日：2018-05-22

Applicant: Rijul Gupta

Inventor： Rijul Gupta

IPC: A61B5/1455 ,  A61B5/145 ,  G01J3/00 ,  A61B5/00 ,  G01N21/31 ,  G01N21/47 ,  G01J3/28 ,  G01N21/49 ,  G01J3/02 ,  G01J3/10 ,  G01J3/427 ,  G01J3/457

Abstract: A multi-channel measurement device for measuring properties of human tissue, may comprise a microcontroller and first and second source/sensor complexes. The first source/sensor complex may include a first housing having a first measurement portion, a first light sensor coupled to the microcontroller and exposed to the first measurement portion, and a first plurality of light sources coupled to the microcontroller and exposed to the first measurement portion. The second source/sensor complex may include a second housing having a second measurement portion, a second light sensor coupled to the microcontroller and exposed to the second measurement portion, and a second plurality of light sources coupled to the microcontroller and exposed to the second measurement portion. The first and second source/sensor complexes are coupled to each other such that the first measurement portion is opposite the second measurement portion and human tissue may be placed between the the first and second measurement portions. The microprocessor is configured with instructions stored in non-volatile memory to individually activate each of the light sources of the first and second pluralities of light sources and to record light intensity detected by the first and second light sources while an individual light source is activated. Each combination of an individually activated light source and one of the first and second light sensors provides a distinct measurement channel for measuring the absorption spectra of human blood and tissue.

公开(公告)号：US10697892B2

公开(公告)日：2020-06-30

申请号：US16071047

申请日：2017-01-26

Applicant: Danmarks Tekniske Universitet

Inventor： Anders Kristensen ,  Kristian Tølbøl Sørensen ,  Emil Højlund-Nielsen

IPC: G01J3/427 ,  G01N21/41 ,  G02B1/00 ,  G01N21/77 ,  G01N21/25 ,  G01J3/02 ,  G01N21/03 ,  G01N21/31 ,  G02B6/12

Abstract: Embodiments of the present invention include a cuvette (100) for use in determining a refractive index of a sample matter in a spectrophotometer (600), the cuvette comprising a container (102) for holding the sample matter, the container (102) having an entry window (121) that allows input radiation to reach the sample matter, the container furthermore having an exit window (122) that allows a part of the input radiation to exit the container part, the entry window and the exit window defining a radiation path; and comprising a photonic crystal (101) rigidly attached to the container or integrally formed in the container and arranged in the radiation path, the photonic crystal having a grating part (111) causing a reflectance spectrum of the photonic crystal to exhibit a resonance. A spectrophotometer is also provided.

公开(公告)号：US20200166760A1

公开(公告)日：2020-05-28

申请号：US16775123

申请日：2020-01-28

Applicant: Magic Leap, Inc.

Inventor： Nicole Elizabeth Samec ,  Nastasja U. Robaina ,  Adrian Kaehler ,  Mark Baerenrodt ,  Eric Baerenrodt ,  Christopher M. Harrises ,  Tammy Sherri Powers

IPC: G02B27/01 ,  G01J3/02 ,  G01J3/42 ,  A61B5/1455 ,  A61B5/11 ,  A61B5/00 ,  G06F3/03 ,  G01J3/10 ,  G06F3/01 ,  G01J3/28 ,  G01J3/427 ,  G01N21/359 ,  G01N33/483 ,  F21V8/00

Abstract: In some embodiments, a system comprises a head-mounted frame removably coupleable to the user's head; one or more light sources coupled to the head-mounted frame and configured to emit light with at least two different wavelengths toward a target object in an irradiation field of view of the light sources; one or more electromagnetic radiation detectors coupled to the head-mounted member and configured to receive light reflected after encountering the target object; and a controller operatively coupled to the one or more light sources and detectors and configured to determine and display an output indicating the identity or property of the target object as determined by the light properties measured by the detectors in relation to the light properties emitted by the light sources.