公开(公告)号：US11415460B2

公开(公告)日：2022-08-16

申请号：US16989741

申请日：2020-08-10

Applicant: University of Hawaii

Inventor： Paul Lucey

IPC: G01J3/26 ,  G01J3/453 ,  G01J3/14

Abstract: A spatial Fourier transform spectrometer is disclosed. The Fourier transform spectrometer includes a Fabry-Perot interferometer with first and second optical surfaces. The gap between the first and second optical surfaces spatially varies in a direction that is orthogonal to the optical axis of the Fourier transform spectrometer. The Fabry-Perot interferometer creates an interference pattern from input light. An image of the interference pattern is captured by a detector, which is communicatively coupled to a processor. The processor is configured to process the interference pattern image to determine information about the spectral content of the input light.

公开(公告)号：US20220187127A1

公开(公告)日：2022-06-16

申请号：US17425644

申请日：2020-07-09

Applicant: SHENZHEN HYPERNANO OPTICS TECHNOLOGY CO., LTD.

Inventor： Mingliang ZHEN ,  Pingping YU ,  Bin GUO ,  Jinbiao HUANG

IPC: G01J3/28 ,  G01J3/02 ,  G01J3/18 ,  G01J3/14 ,  G02B27/10

Abstract: A system for testing a spectral response speed of a tunable filter is disclosed, which includes a collimating light source, a beam splitting element, a focusing lens, and an image recording device of light spot position arranged successively. The tunable filter is disposed between the collimating light source and the beam splitting element and configured to be continuously tuned within a certain wavelength range during testing. The beam splitting element is used to form light beams of different wavelength bands passing through the tunable filter into diffracted beams or refracted beams corresponding to different wavelength bands. The focusing lens is used to perform focusing. The image recording device of light spot position is used to record change information about positions where the diffracted beams or refracted beams corresponding to different wavelength bands are imaged.

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：US11268856B1

公开(公告)日：2022-03-08

申请号：US17135204

申请日：2020-12-28

Applicant: Wavefront Research, Inc.

Inventor： Thomas A. Mitchell

IPC: G01J3/28 ,  G01J3/02 ,  G01J3/36 ,  G01J3/14 ,  G01J3/18

Abstract: An imaging optical system including a plurality of imaging optical sub-systems, each having at least one optical element and receiving light from a source, and a plurality of spectrometer optical sub-systems, each spectrometer optical sub-system receiving light from at least one of the imaging optical sub-systems, each imaging optical sub-system and spectrometer optical sub-system combination having a spatial distortion characteristic, each spatial distortion characteristic having a predetermined relationship to the other spatial distortion characteristics.

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：US11231322B2

公开(公告)日：2022-01-25

申请号：US17260358

申请日：2019-07-12

Applicant: ISTANBUL TEKNIK UNIVERSITESI ,  ISTANBUL MEDIPOL UNIVERSITESI

Inventor： Onur Ferhanoglu ,  Muhammed Fatih Toy ,  Sakir Kaan Cetindag ,  Fehmi Civitci

IPC: G01J3/28 ,  G01J3/02 ,  G01J3/14

Abstract: A prism spectrometer having higher resolution and wider spectral width through the use of a speckle generating diffuser.

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：US20210325245A1

公开(公告)日：2021-10-21

申请号：US16849552

申请日：2020-04-15

Applicant: VIAVI SOLUTIONS INC.

Inventor： Driss TOUAHRI ,  Christopher Russell Wagner

IPC: G01J3/18 ,  G01J3/14 ,  G01J3/26

Abstract: A system for a high resolution optical spectrum analyzer (OSA) using an efficient multi-pass configuration is disclosed. The system may include an entrance slit to allow inward passage of an optical beam. The system may also include a grating element to diffract the optical beam. The system may further include a retroreflective element to retroreflect the optical beam. The system may also include a mirror to reflect the optical beam. The system may include an exit slit, which in some examples may be adjacent to the entrance slit. The exit slit may allow outward passage of the optical beam for a high resolution optical measurement.

公开(公告)号：US11131860B1

公开(公告)日：2021-09-28

申请号：US15259740

申请日：2016-09-08

Applicant: Wavefront Research, Inc.

Inventor： Thomas A. Mitchell

IPC: G01J3/04 ,  G02B27/10 ,  G02B27/12 ,  G01J3/28 ,  G01J3/14 ,  G01J3/12

Abstract: Imagers and imaging spectrometers, which are more compact in physical size with wider spatial fields than previous designs and include axis bending elements, are disclosed.