公开(公告)号：US20210223106A1

公开(公告)日：2021-07-22

申请号：US17151207

申请日：2021-01-17

Applicant: Spectrove Inc.

Inventor： Kasra Khazeni

IPC: G01J3/453 ,  G01J3/02

Abstract: The present application relates to a system for performing time-resolved interferometric spectroscopy of incoming light. In some embodiments, the system includes one or more optical elements, a photo-detector, a capacitance detector, and one or more processors. Upon application of a varying input signal to the one or more optical elements, a change to an optical characteristic is caused resulting in a changing interference pattern produced by the incoming light incident on the one or more optical elements. During the application of the varying input signal, the photo-detector may detect an intensity of light output from the one or more optical elements and the capacitance detector may detect a capacitance of the one or more optical elements.

公开(公告)号：US11067442B2

公开(公告)日：2021-07-20

申请号：US16317941

申请日：2017-07-05

Applicant: MICOS ENGINEERING GMBH ,  EMPA EIDENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANASTALT

Inventor： Mohammadreza Madi ,  Edoardo Alberti ,  Ivan Shorubalko

IPC: G01J3/02 ,  G01J3/453 ,  G01J3/28 ,  G02B6/42

Abstract: A waveguide spectrometer includes at least one substrate layer with at least one waveguide. Each waveguide extends from an inlet face proceeding partly through the substrate layer to a reflecting element. A multiplicity of photo detectors is arranged on a front side of the substrate layer, while the photo detectors are electrically connected to an electronic read out system. The spectrometer can be made lightweight and easier to produce by forming the waveguides as surface waveguides, each showing a longitudinal opening with a width to the front side of the substrate layer between the inlet face and the reflecting element. The photo detectors are in print distributed at the front side on top of the substrate layer at least partly overlapping the longitudinal opening along an overall length of sampled region and the electrical connection of the photo detectors with the electronic read out system is achieved by a multiplicity of printed electrical conductors.

公开(公告)号：US20210181022A1

公开(公告)日：2021-06-17

申请号：US17269432

申请日：2019-07-25

Applicant: POLITECNICO DI MILANO ,  CONSIGLIO NAZIONALE DELLE RICERCHE

Inventor： Cristian Angelo MANZONI ,  Giulio CERULLO ,  Dario POLLI ,  Antonio PERRI ,  Fabrizio PREDA ,  Gianluca VALENTINI ,  Andrea BASSI

IPC: G01J3/28 ,  G01J3/453 ,  G01J3/02

Abstract: A Fourier-transform hyperspectral imaging system may include an optical imaging system configured to produce an image of an object, and an adjustable birefringent common-path interferometer module comprising a movable birefringent element and configured to produce interfering replicas of an input radiation which are delayed from each other by a phase delay adjustable by the moving birefringent element. The interferometer module may be configured to produce collinear replicas for entering optical rays parallel to said optical axis. The hyperspectral imaging system further comprises a two-dimensional light detector configured to receive the replicas and provide digital images of the object depending on said adjustable phase delay. The system also includes an analysis device configured to perform a Fourier Transform of the digital images to obtain a hyperspectral representation of the object.

公开(公告)号：US11035806B2

公开(公告)日：2021-06-15

申请号：US16723811

申请日：2019-12-20

Applicant: EDAX, Incorporated

Inventor： Patrick Paul Camus

IPC: G02B27/30 ,  G01N23/207 ,  G01J3/453 ,  G01J3/02

Abstract: A device for the collection of X-rays includes at least one multi-reflection reflector cone. The multi-reflection reflector cone has a focal axis. A first portion of the multi-reflection reflector cone is oriented at a first angle to the focal axis, and a second portion of the multi-reflection reflector cone is oriented at a second angle to the focal axis.

公开(公告)号：US11029261B2

公开(公告)日：2021-06-08

申请号：US16807270

申请日：2020-03-03

Applicant: BrightSpec, Inc.

Inventor： Justin L. Neill ,  Brent Harris ,  Brooks Hart Pate

IPC: G01N22/00 ,  G01J3/44 ,  G01J3/42 ,  G01J3/45 ,  G01N21/63 ,  G01N21/35 ,  G01J3/453 ,  G01N21/3581

Abstract: Methods and apparatuses for direct multiplication Fourier transform millimeter wave spectroscopy are disclosed herein. A sample method includes generating at least one pulse of microwave electromagnetic energy. The sample method also includes frequency-multiplying the pulse(s) to generate at least one frequency-multiplied pulse and filtering at least one spurious harmonic of the frequency-multiplied pulse to generate at least one filtered pulse. The spurious harmonic is generated by frequency-multiplying the pulse. The method also includes exciting a sample using the filtered pulse. The method further includes detecting an emission from the sample. The emission is elicited at least in part by the filtered pulse.

公开(公告)号：US20210072078A1

公开(公告)日：2021-03-11

申请号：US16906719

申请日：2020-06-19

Applicant: Shimadzu Corporation

Inventor： Seiji KOJIMA

IPC: G01J3/02 ,  G01J3/453

Abstract: A typical configuration of the angle adjustment mechanism according to the present invention is provided with a parabolic mirror, a housing accommodating a parabolic mirror, a screw including a head arranged outside the housing and a shaft engaged with the parabolic mirror through a hole formed in the housing, and a base portion in contact with both the housing and the parabolic mirror. A force is applied to an engaging portion of the parabolic mirror in a direction approaching the housing and a force is applied to a portion of the parabolic mirror in contact with the base portion in a direction away from the housing. The angle of the parabolic mirror with respect to the housing changes in accordance with the change in the length of a portion where the shaft and the parabolic mirror engage.

公开(公告)号：US10908023B2

公开(公告)日：2021-02-02

申请号：US16503885

申请日：2019-07-05

Applicant: LightMachinery Inc.

Inventor： John H. Hunter ,  Ian J. Miller ,  Hubert Jean-Ruel ,  Edward S. Williams

IPC: G01J3/453 ,  G01J3/18 ,  G01J3/22 ,  G01J3/12

Abstract: A conventional spatial heterodyne spectrometer (SHS) comprises a beam splitter and a pair of diffraction gratings, one in each arm of the SHS. The beam splitter separates an input beam of light into first and second sub-beams for transmission to a respective diffraction grating, and then recombines the diffracted sub-beams for focusing onto a camera. A field widened SHS enables much larger range of input angles of the original beam to be focused onto the camera, so that a broader range of wavelengths may be collected. Increasing the range of wavelengths may be provided by one or more of the following: combining the beam splitter with a field widening prism, making one diffraction grating farther from the beam splitter than the other, and placing a plurality of diffraction gratings in each arm of the SHS.

公开(公告)号：US20200288982A1

公开(公告)日：2020-09-17

申请号：US16880095

申请日：2020-05-21

Applicant: Omni Medsci, Inc.

Inventor： Mohammed N. ISLAM

IPC: A61B5/00 ,  G01J3/10 ,  G01J3/28 ,  G01J3/14 ,  G01J3/453 ,  G01J3/42 ,  G01J3/02 ,  G01N21/35 ,  G16H40/67 ,  G01N21/359 ,  A61B5/145 ,  G01N33/15 ,  G01N33/49 ,  G01N21/3563 ,  G01N21/39 ,  G01N33/02 ,  G01N33/44 ,  G01N21/88 ,  A61B5/1455

Abstract: A measurement system comprises a pulsed laser diode array that includes one or more Bragg reflectors, and wherein the light generated by the array penetrates tissue comprising skin. At least some of the wavelengths of light are in the near infrared. The detection system is synchronized to the laser diode array and comprises an infrared camera and a first receiver comprising a plurality of detectors. The first receiver comprises one or more detector arrays and performs a time-of-flight measurement. The measurement system generates an image, the detection system non-invasively measures blood in blood vessels within or below a dermis layer within the skin based at least in part on near-infrared diffuse reflection from the skin, and the detection system measures absorption of hemoglobin between 700 and 1300 nanometers wavelength range. A processor compares the absorption of hemoglobin between different tissue spatial locations, and the measurement system processes the time-of-flight measurement.

公开(公告)号：US20200278248A1

公开(公告)日：2020-09-03

申请号：US16317969

申请日：2017-07-04

Applicant: MICOS ENGINEERING GMBH

Inventor： Joseph Benedict GULDIMANN ,  Mohammadreza MADI ,  Edoardo ALBERTI

IPC: G01J3/02 ,  G01J3/453 ,  G01J3/28

Abstract: A waveguide spectrometer includes at least one substrate layer with at least one surface waveguide extending from an inlet face to guide the received light; at least one evanescent field sampler in the waveguide to out-couple light along the waveguide; at least one light sensing unit to detect the out-coupled light, each electrically connected to an electronic read out system; and means to achieve counter propagating optical signals inside the waveguide to obtain interference between the counter propagating optical signals generating an interference pattern along the waveguide. A compact and simple construction with improved spectral range/bandwidth of the spectrometer can be achieved with at least one modulator integrated into the sampling waveguide structure to enable conditioning of the guided optical signals and for changing the refractive index. The integrated modulator is realized by electrodes placed aside directly neighboured to the guiding core resp. waveguide generating an optical phases shift required for scanning the interferogram.

公开(公告)号：US10761019B2

公开(公告)日：2020-09-01

申请号：US16248238

申请日：2019-01-15

Applicant: Vital Biosciences Inc.

Inventor： Iman Khodadad ,  Alexander Wong ,  Farnoud Kazemzadeh

IPC: G01N21/35 ,  G01J3/42 ,  G01J3/02 ,  G01J3/36 ,  G01J3/28 ,  G01J3/10 ,  G01N21/25 ,  A61B5/00 ,  G01N21/3563 ,  G01J5/00 ,  A61B5/145 ,  A61B5/1455 ,  G01J3/453

Abstract: A method may include emitting a band of electromagnetic (EM) radiation towards a specimen that covers at least a first and a second wavelength of EM radiation. The method may also include receiving, at a first receiver configured to receive the first wavelength of EM radiation, responses to the EM radiation after the EM radiation interacts with the specimen; and receiving, at a second receiver configured to receive the second wavelength of EM radiation, responses to the EM radiation after the EM radiation interacts with the specimen. The method may also include extracting markers from a combination of first signals representative of the received responses at the first receiver and second signals representative of the received responses at the second receiver, the extracting including replicating and mixing the first signals and the second signals to extract the plurality of markers.