公开(公告)号：US11428573B2

公开(公告)日：2022-08-30

申请号：US17112144

申请日：2020-12-04

Applicant: Infineon Technologies AG

Inventor： Saumitra Sanjeev Chafekar

IPC: G01J3/12 ,  G01J3/02 ,  G01J3/42 ,  B82Y20/00

Abstract: A light emitting structure for a photo-acoustic spectroscopy sensing device for sensing a target gas comprises a light source configured for emitting light of an input wavelength. The light emitting structure further comprises a conversion structure that is configured for absorbing light of the input wavelength, and that is further configured for emitting light of an output wavelength. The output wavelength of the conversion structure is adapted to an absorption wavelength of the target gas. The conversion structure comprises an output conversion layer that comprises a plurality of nanoparticles. The nanoparticles of the output conversion layer are configured for emitting light of the output wavelength.

公开(公告)号：US20220228922A1

公开(公告)日：2022-07-21

申请号：US17658567

申请日：2022-04-08

Applicant: Rebellion Photonics, Inc.

Inventor： Robert Timothy KESTER ,  Nathan Adrian HAGEN

IPC: G01J5/53 ,  H04N5/33 ,  H04N3/09 ,  H04N5/365 ,  G01J3/02 ,  G01J3/36 ,  G01J5/00 ,  G01J3/26 ,  G01J3/28 ,  G01J5/20 ,  G01J5/0806 ,  G01J5/0802 ,  G01J5/0804 ,  G01N21/3504 ,  G01J3/12

Abstract: Various embodiments disclosed herein describe a divided-aperture infrared spectral imaging (DAISI) system that is adapted to acquire multiple IR images of a scene with a single-shot (also referred to as a snapshot). The plurality of acquired images having different wavelength compositions that are obtained generally simultaneously. The system includes at least two optical channels that are spatially and spectrally different from one another. Each of the at least two optical channels are configured to transfer IR radiation incident on the optical system towards an optical FPA unit comprising at least two detector arrays disposed in the focal plane of two corresponding focusing lenses. The system further comprises at least one temperature reference source or surface that is used to dynamically calibrate the two detector arrays and compensate for a temperature difference between the two detector arrays.

公开(公告)号：US11333597B2

公开(公告)日：2022-05-17

申请号：US15942430

申请日：2018-03-30

Applicant: CYTEK BIOSCIENCES, INC.

Inventor： Ming Yan ,  Yung-Chieh Hsieh ,  David Vrane ,  Eric Chase ,  Wenbin Jiang

IPC: G01N15/14 ,  G01J3/02 ,  G01J3/28 ,  G01J3/36 ,  G01N21/64 ,  G01J3/44 ,  G01J3/18 ,  G01J3/14 ,  G01N21/53 ,  G01J3/12 ,  G01N15/00 ,  G01N15/10

Abstract: A system, an apparatus, and a method are provided for a modular flow cytometer with a compact size. In one embodiment, the modular flow cytometry system includes the following: a laser system for emitting laser beams; a flow cell assembly positioned to receive the laser beams at an interrogation region of a fluidics stream where fluoresced cells scatter the laser beams into fluorescent light; a fiber assembly positioned to collect the fluorescent light; and a compact light detection module including a first image array having a transparent block, a plurality of micro-mirrors in a row coupled to a first side of the transparent block, and a plurality of filters in a row coupled to a second side of the transparent block opposite the first side.

公开(公告)号：US11268978B2

公开(公告)日：2022-03-08

申请号：US16583269

申请日：2019-09-26

Applicant: National Institute of Metrology, China

Inventor： Zhen-Dong Zhu ,  Si-Tian Gao ,  Wei Li ,  Shi Li ,  Jing-Tao Xu

IPC: G01J3/02 ,  G01Q70/10 ,  G01J3/10 ,  G01J3/14 ,  G01J3/28 ,  G01J3/44 ,  G01J3/12

Abstract: The present disclosure provides a tip-enhanced Raman spectroscope system. The system includes a laser emitting unit, a laser excitation unit, a first dichroic beam splitter, a first Raman spectrometer, and a confocal detecting unit. The laser excitation unit includes a sample stage and a first scanning probe. The sample stage is configured to have a sample disposed thereon such that a first incident laser beam emitted from the laser emitting unit is transmitted to the sample to excite first scattered light. The first dichroic beam splitter is configured to split a first Raman scattered light from the first Rayleigh scattered light. The first Raman spectrometer is disposed on a first Raman optical path of the first Raman scattered light. The confocal detecting unit is disposed on a first Rayleigh optical path of the first Rayleigh scattered light to image the sample.

公开(公告)号：US11241156B2

公开(公告)日：2022-02-08

申请号：US17135233

申请日：2020-12-28

Applicant: Omni Medsci, Inc.

Inventor： Mohammed N. Islam

IPC: G01J3/00 ,  A61B5/00 ,  A61C19/04 ,  G16Z99/00 ,  G16H40/67 ,  A61B5/145 ,  A61B5/1455 ,  G01J3/02 ,  G01J3/10 ,  G01J3/14 ,  G01J3/28 ,  G01J3/42 ,  G01J3/453 ,  G01N21/35 ,  G01N21/3563 ,  G01N21/359 ,  G01N21/39 ,  G01N21/88 ,  G01N33/02 ,  G01N33/15 ,  G01N33/44 ,  G01N33/49 ,  H01S3/067 ,  H01S3/00 ,  A61C1/00 ,  G01J3/18 ,  G01J3/12 ,  G01M3/38 ,  G01N21/85 ,  G01N21/95 ,  H01S3/30

Abstract: A measurement system is provided with an array of laser diodes with one or more Bragg reflectors. At least a portion of the light generated by the array is configured to penetrate tissue comprising skin. A detection system configured to: measure a phase shift, and a time-of-flight, of at least a portion of the light from the array of laser diodes reflected from the tissue relative to the portion of the light generated by the array; generate one or more images of the tissue; detect oxy- or deoxy-hemoglobin in the tissue; non-invasively measure blood in blood vessels within or below a dermis layer within the skin; measure one or more physiological parameters based at least in part on the non-invasively measured blood; and measure a variation in the blood or physiological parameter over a period of time.

公开(公告)号：US20220011218A1

公开(公告)日：2022-01-13

申请号：US17294139

申请日：2019-11-15

Applicant: Chemitec S.r.l.

Inventor： Filippo CATELANI

IPC: G01N21/31 ,  G01J3/02 ,  G01J3/12

Abstract: A system and method for the spectrophotometric analysis of a sample of a liquid solution while it flows in a duct. The method determines the luminous intensity (Iin) of a substantially monochromatic beam based on the cleaning state of a measurement chamber and/or ageing of at least one emitting device and/or ageing of at least one detecting device, whereby the worse is the cleaning state of the measurement chamber and/or the greater is the ageing state of the at least one emitting device and/or the at least one detecting device, the higher the luminous intensity (Iin) of the substantially monochromatic beam.

公开(公告)号：US11209314B2

公开(公告)日：2021-12-28

申请号：US17126118

申请日：2020-12-18

Applicant: Government of the United States of America, as represented by the Secretary of Commerce

Inventor： Adam Joseph Fleisher ,  Keith Alan Gillis ,  Joseph Terence Hodges

IPC: G01N21/00 ,  G01J3/433 ,  G01J3/12 ,  G01J3/10 ,  G01J3/02

Abstract: A cavity buildup dispersion spectrometer includes a shutter that modulates coherent electromagnetic radiation at a shutter frequency; and produces modulated electromagnetic radiation; a frequency shifter that frequency shifts the modulated electromagnetic radiation to a shifter frequency and produces frequency shifted radiation; a resonator that produces cavity radiation from the frequency shifted radiation and the coherent electromagnetic radiation, receives an analyte; subjects the analyte to cavity radiation, and transmits the cavity radiation as transmitted electromagnetic radiation; and a receiver that: produces a detector signal from the transmitted electromagnetic radiation, such that the detector signal includes a beat frequency that corresponds to a change in a motion of resonator that includes a change in the distance between the mirrors or a change of refractive index of the analyte in the intracavity space.

公开(公告)号：US11160455B2

公开(公告)日：2021-11-02

申请号：US17078771

申请日：2020-10-23

Applicant: OMNI MEDSCI, INC.

Inventor： Mohammed N. Islam

IPC: G01J3/00 ,  A61B5/00 ,  A61B5/145 ,  A61B5/1455 ,  G16H40/67 ,  G06F19/00 ,  G01J3/02 ,  G01J3/10 ,  G01J3/14 ,  G01J3/28 ,  G01J3/42 ,  G01J3/453 ,  G01N21/35 ,  G01N21/3563 ,  G01N21/359 ,  G01N21/39 ,  G01N21/88 ,  G01N33/02 ,  G01N33/15 ,  G01N33/44 ,  G01N33/49 ,  G01J3/18 ,  G01J3/12 ,  G01M3/38 ,  G01N21/85 ,  G01N21/95 ,  H01S3/00 ,  H01S3/067 ,  H01S3/30

Abstract: A system for measuring one or more physiological parameters is provided with a wearable device that includes a light source comprising a driver and a plurality of semiconductor sources that generate an output optical light. The wearable device comprises: one or more lenses to receive at least a portion of the output optical light and to deliver a lens output light to tissue, and a detection system to receive at least a portion of the lens output light reflected from the tissue and to generate an output signal having a signal-to-noise ratio, and to be synchronized to the light source. The detection system comprises at least one analog to digital converter coupled to at least one spatially separated detector. The plurality of semiconductor sources comprises six light emitting diodes, and wherein the plurality of semiconductor sources and the plurality of spatially separated detectors are located on one or more arcs.

公开(公告)号：US11159750B2

公开(公告)日：2021-10-26

申请号：US16844908

申请日：2020-04-09

Applicant: Hypermed Imaging, Inc.

Inventor： Mark Anthony Darty ,  Michael Tilleman ,  Peter Meenen ,  Dmitry Yudovsky

IPC: H04N5/33 ,  G01J3/02 ,  G01J3/10 ,  G01J3/36 ,  H04N5/225 ,  H04N5/235 ,  G01J3/28 ,  G01J3/12

Abstract: Provided are methods and systems for concurrent imaging at multiple wavelengths. In one aspect, a hyperspectral/multispectral imaging device includes a lens configured to receive light backscattered by an object, a plurality of photo-sensors, a plurality of bandpass filters covering respective photo-sensors, where each bandpass filter is configured to allow a different respective spectral band to pass through the filter, and a plurality of beam splitters in optical communication with the lens and the photo-sensors, where each beam splitter splits the light received by the lens into a plurality of optical paths, each path configured to direct light to a corresponding photo-sensor through the bandpass filter corresponding to the respective photo-sensor.

公开(公告)号：US11150134B2

公开(公告)日：2021-10-19

申请号：US17136438

申请日：2020-12-29

Applicant: CANON KABUSHIKI KAISHA

Inventor： Kazumi Kimura

IPC: G01J3/28 ,  G01J3/02 ,  H04N5/33 ,  G01J3/12

Abstract: The spectral information acquisition system includes an illumination optical system configured to illuminate an object being moved and a spectral optical system configured to disperse light from the object illuminated by the illumination optical system. The illumination optical system includes a separation element configured to separate a light flux emitted from a light source into a first polarized light flux having a first polarization state and a second polarized light flux having a second polarization state, and a phase plate configured to change the polarization state of at least one of the first polarized light flux and the second polarized light flux. The first polarized light flux illuminates the object from a first direction, and the second polarized light flux illuminates the object from a second direction that is different from the first direction.