公开(公告)号：US20230384159A1

公开(公告)日：2023-11-30

申请号：US18201857

申请日：2023-05-25

Applicant: Yokogawa Electric Corporation

Inventor： Ryutaro Maki ,  Kazufumi Nishida

IPC: G01J3/50 ,  G01J3/10 ,  G01J3/02

CPC classification number: G01J3/501 ,  G01J3/10 ,  G01J3/0251 ,  G01J2003/102

Abstract: A colorimeter 1 that measures a chromaticity of a measured object A comprises: a first light source unit 11 that emits first irradiation light having a first spectrum S1; a second light source unit 12 that emits second irradiation light having a second spectrum S2 different from the first spectrum S1; an integrating sphere 61 that has irradiation light including the first irradiation light and the second irradiation light incident thereon; a light receiver 20 that detects measured light resulting from irradiation of the measured object A with the irradiation light emitted from the integrating sphere 61; and a controller 50 that calculates an optical spectrum of the measured light based on a detection signal of the measured light. A superimposed spectrum S of the first spectrum S1 and the second spectrum S2 corresponds to a reference spectrum S0 of a standard light source as reference for calculating the chromaticity.

公开(公告)号：US11774285B2

公开(公告)日：2023-10-03

申请号：US17423785

申请日：2020-01-21

Applicant: Yokogawa Electric Corporation

Inventor： Yasuyuki Suzuki ,  Masashi Nishi ,  Yukihiro Nakamura ,  Tetsushi Namatame

IPC: G01J3/45 ,  G01J3/02 ,  G01J3/10 ,  G01J3/453 ,  G01B9/02

CPC classification number: G01J3/021 ,  G01B9/02 ,  G01J3/45 ,  G01J2003/102 ,  G01J2003/4538

Abstract: A Fourier spectroscopic analyzer includes: a first light source that emits light including a wavelength component in a first wavelength band which is a wavelength band in which a spectrum of light passing through a sample is acquired and a wavelength component in a second wavelength band different from the first wavelength band; a second light source that emits light including the wavelength component in the second wavelength band; an interferometer that acquires an interferogram which is coherent light from the light emitted from the first light source; a first light coupling optical system that couples light emitted from the second light source to at least one of light emitted from the first light source and the interferogram acquired by the interferometer; a light receiver that outputs a first light-reception signal acquired by receiving light including the wavelength component in the first wavelength band out of the wavelength components included in the light passing through the sample and a second light-reception signal acquired by receiving light including the wavelength component in the second wavelength band; and a signal processor that performs a Fourier transform process on the first light-reception signal and the second light-reception signal to acquire a spectrum of the wavelength component in the first wavelength band with noise removed therefrom.

公开(公告)号：US11642051B2

公开(公告)日：2023-05-09

申请号：US16777851

申请日：2020-01-30

Applicant: Benjamin Mbouombouo ,  Alan Abul-Haj ,  Roxanne Abul-Haj ,  Christopher Slawinski ,  Alodeep Sanyal ,  Kevin Hazen

Inventor： Benjamin Mbouombouo ,  Alan Abul-Haj ,  Roxanne Abul-Haj ,  Christopher Slawinski ,  Alodeep Sanyal ,  Kevin Hazen

IPC: A61B5/1455 ,  A61B5/00 ,  A61B5/145 ,  G01N33/49 ,  G01J3/10

CPC classification number: A61B5/1455 ,  A61B5/0022 ,  A61B5/0051 ,  A61B5/0053 ,  A61B5/14532 ,  A61B5/6824 ,  A61B5/6832 ,  G01J3/10 ,  G01N33/49 ,  A61B5/0004 ,  A61B5/7264 ,  A61B2562/0233 ,  A61B2562/0238 ,  A61B2562/046 ,  G01J2003/102 ,  G01J2003/106

Abstract: The invention comprises a method and apparatus for sampling a common tissue volume and/or a common skin layer skin of a person as a part of noninvasive analyte property determination system, comprising the steps of: providing an analyzer, comprising at least three detectors at least partially embedded in a probe housing, the probe housing comprising a sample side surface, the detectors including a first and second range of detection zones of differing radial distances from a first illumination zone and second illumination zone, respectively coupled to separate sources; repetitively illuminating the illumination zones of the skin with photons in a range of 1200 to 2500 nm; and detecting portions of light from the sources with the at least three detectors, the detectors positioned on a common line with the sources.

公开(公告)号：US20190056266A1

公开(公告)日：2019-02-21

申请号：US16028473

申请日：2018-07-06

Applicant: OMNI MEDSCI, INC.

Inventor： Mohammed N. ISLAM

IPC: G01J3/10 ,  H01S5/40 ,  G01J3/02 ,  G01J3/42 ,  G02B6/293 ,  G02F1/365 ,  H01S3/067 ,  H01S3/094 ,  H01S3/30 ,  G01B9/02 ,  H01S5/14 ,  H01S5/10 ,  H01S5/00 ,  H01S3/102 ,  G02F1/35

CPC classification number: G01J3/108 ,  G01B9/02091 ,  G01J3/0218 ,  G01J3/0245 ,  G01J3/42 ,  G01J2003/102 ,  G01J2003/423 ,  G02B6/29349 ,  G02F1/365 ,  G02F2001/3528 ,  G02F2202/32 ,  H01S3/06725 ,  H01S3/06754 ,  H01S3/094007 ,  H01S3/094069 ,  H01S3/094076 ,  H01S3/1024 ,  H01S3/302 ,  H01S5/0064 ,  H01S5/0085 ,  H01S5/0092 ,  H01S5/1092 ,  H01S5/146 ,  H01S5/4012 ,  H01S2301/085

Abstract: A spectroscopy system includes a light source having an input light source, including semiconductor diodes generating an input beam with a wavelength shorter than 2.5 microns. Cladding-pumped fiber amplifiers receive the input beam and form an amplified optical beam having a spectral width. A nonlinear element broadens the spectral width of the amplified optical beam to 100 nm or more through a nonlinear effect forming an output beam that is pulsed. A filter is coupled to at least one of a lens and a mirror that receives the output beam and delivers the filtered output beam to a sample. A detection system includes detectors configured to receive the output beam reflected or transmitted from the sample. The detection system is configured to use a lock-in technique with the pulsed output beam and the spectroscopy system is adapted to detect chemicals in the sample.

公开(公告)号：US20180372541A1

公开(公告)日：2018-12-27

申请号：US16016130

申请日：2018-06-22

Applicant: Hunter Associates Laboratory, Inc.

Inventor： Michael T. Scardina ,  Tod L. Kerr ,  Miguel A. Marcos ,  Greg L. Howell

IPC: G01J3/02 ,  G01J3/50 ,  G01J3/10

CPC classification number: G01J3/0289 ,  G01J3/0237 ,  G01J3/0264 ,  G01J3/027 ,  G01J3/0278 ,  G01J3/0291 ,  G01J3/10 ,  G01J3/501 ,  G01J2003/102 ,  G01N21/251

Abstract: Color measurement instruments and processes provide automated and accurate color measurements. Sensor to sample distance is automatically adjusted by the instrument over the course of measurement collection. Adaptive parameters may include turntable speed, illumination spectrum, laser gain setting, number of measurement samples, duration of sampling, sample color measurement threshold, and distance variation measurement threshold.

公开(公告)号：US20180224334A1

公开(公告)日：2018-08-09

申请号：US15428639

申请日：2017-02-09

Applicant: Savannah River Nuclear Solutions, LLC

Inventor： Patrick E. O'Rourke ,  Robert J. Lascola ,  David Immel ,  Edward A. Kyser, III ,  Jean R. Plummer

IPC: G01J3/42 ,  G01J3/427 ,  G01N21/31 ,  G01J3/02 ,  G01J3/10

CPC classification number: G01J3/42 ,  G01J3/10 ,  G01J3/28 ,  G01J2003/102 ,  G01J2003/2866 ,  G01N21/274 ,  G01N21/31 ,  G01N21/55 ,  G01N21/64 ,  G01N21/65

Abstract: Spectrophotometers and spectroscopy processes are described that can provide for in-line calibration at every spectral acquisition as well as for continuous response correction during sample processing. The spectrophotometers include multiple polychromatic light sources that include characteristic emission spectra for use as an internal wavelength drift calibration system that is independent of environmental factors. Correction functions provided by the internal calibration process can be applied continuously and across an entire sample spectrum. The intensity response of each spectrometer in a spectrophotometer can also be monitored and continuously corrected for stray light, dark current, readout noise, etc.

公开(公告)号：US20180184972A1

公开(公告)日：2018-07-05

申请号：US15713198

申请日：2017-09-22

Applicant: VERIFOOD, LTD.

Inventor： Assaf CARMI ,  Damian GOLDRING ,  Efrat LEOPOLD

IPC: A61B5/00 ,  G01J3/02

CPC classification number: A61B5/4872 ,  A61B5/0071 ,  A61B5/0075 ,  A61B5/1455 ,  A61B5/725 ,  A61B5/7257 ,  G01J3/0205 ,  G01J3/0208 ,  G01J3/021 ,  G01J3/0256 ,  G01J3/027 ,  G01J3/0297 ,  G01J3/2803 ,  G01J2003/102

Abstract: A system for analyzing body fat level in human body comprising: a spectrometer, for example a handheld spectrometer, configured to generate spectral data from one or more locations on the body of a tested subject and a processor configured to receive the spectral data using models and output body fat levels of the tested subject.

公开(公告)号：US20180136138A1

公开(公告)日：2018-05-17

申请号：US15653636

申请日：2017-07-19

Applicant: Jun Zhao ,  Xin Jack Zhou ,  Sean Xiaolu Wang

Inventor： Jun Zhao ,  Xin Jack Zhou ,  Sean Xiaolu Wang

IPC: G01N21/65 ,  G01N33/15 ,  G01J3/10 ,  G01J3/02

CPC classification number: G01N21/658 ,  G01J3/021 ,  G01J3/0229 ,  G01J3/10 ,  G01J2003/102 ,  G01N21/65 ,  G01N33/15

Abstract: This invention relates to an apparatus and method for performing bidirectional Raman spectroscopy of a sample, preferably a diffusely scattering sample, in which two excitation light sources are employed to illuminate the sample from two opposite directions to excite Raman scattering signal from the sample. The Raman scattering signal which transmits through the sample are collected by two optical devices each positioned on the opposite side of the sample to obtain two transmission Raman spectra of the sample, which enables the accurate determination of the composition of the whole sample.

公开(公告)号：US20180087964A1

公开(公告)日：2018-03-29

申请号：US15559435

申请日：2016-04-26

Applicant: Panasonic Corporation

Inventor： SOICHIRO HIRAOKA ,  MASAYA NAKATANI

IPC: G01J3/26 ,  G01J3/02

CPC classification number: G01J3/26 ,  G01J3/0202 ,  G01J3/0229 ,  G01J3/027 ,  G01J2003/102 ,  G01J2003/1273 ,  G01N21/01 ,  G02B26/00

Abstract: A method of controlling a spectroscopic module that includes a measurement light source, a variable-wavelength optical filter, a photodiode, and a conversion circuit for converting a drive signal voltage into a gap displacement amount. The spectroscopic module has a reference light source for emitting a reference light beam of a known wavelength. The controlling method involves varying a gap for the incident reference light beam, extracting two maximum points among data output from the photodiode, and updating a first conversion formula provided in the conversion circuit through use of drive signal voltages and gap amounts corresponding to the two points.

公开(公告)号：US20180066988A1

公开(公告)日：2018-03-08

申请号：US15694318

申请日：2017-09-01

Applicant: Carl Zeiss Spectroscopy GmbH

Inventor： Joerg MARGRAF ,  Thomas KEUNE

IPC: G01J3/10 ,  G01J3/42 ,  G01N21/47

CPC classification number: G01J3/10 ,  F21V7/04 ,  F21V7/043 ,  G01J3/021 ,  G01J3/08 ,  G01J3/28 ,  G01J3/42 ,  G01J2003/102 ,  G01J2003/425 ,  G01N21/255 ,  G01N21/4738 ,  G01N21/474 ,  G01N21/4785 ,  G01N21/55 ,  G01N21/57 ,  G01N2021/8411 ,  G01N2201/061

Abstract: A measuring light source includes a hollow body having a diffusely reflective inner surface. Formed in the hollow body are a concave, concave mirror-shaped illumination space, a tubular light shaping space, and a concave, concave mirror-shaped light exit space, which have a shared axis. A light source for generating light is at least partially situated in the illumination space. The light exit space has a light exit. The illumination space and the light exit space with their concave mirror shapes are situated opposite one another and are connected by the tubular light shaping space. A diffusely reflecting reflective disk for reflecting the light, reflected from the inner surface of the hollow body situated in the light exit space, through the light exit to outside the hollow body is situated in the hollow body.